[控件学习 - 2-2]Extra Valid TextBox[源码]

上次写了[控件学习-2]Extra Valid TextBox 学习了控件的如何扩展属性已及绑定脚本方法.
之后由于接了一个delphi的项目(其实我的主业是delphi),一直再加班赶工,没有再整理相关的一些代码出来.

觉得这个[控件学习-2]Extra Valid TextBox 还有很多可以改进的地方,先将最粗糙的代码帖上来,大家可以帮忙改进,或者提供更多的意见.

我也是在尝试修改各种不同需求来学习更多控件编写知识.

代码如下,需要的朋友可以看下,搬门弄斧了.......

KTextBox.cs

  1 using System;
  2 using System.Collections;
  3 using System.ComponentModel;
  4 using System.Drawing;
  5 using System.Web.UI;
  6 using System.Web.UI.WebControls;
  7 [assembly : TagPrefix("LangZi.WebControls", "KTX")]
  8
  9 namespace LangZi.WebControls
 10 {
 11    /**//// <summary>
 12    /// 功能：
 13    ///        能在客户端自动对多种类型数据进行验证的 TextBox
 14    ///        
 15    ///        可验证的类型为：
 16    ///            1.不为空
 17    ///            2.和另一个输入框比较，看值是否相等
 18    ///            3.日期时间
 19    ///            4.日期
 20    ///            5.时间
 21    ///            6.Email地址
 22    ///            
 23    ///        内置的几种常用正则表达式验证：
 24    ///            1.
 25    ///            2.
 26    ///            
 27    ///        另外，如果设置为不进行任何验证，功能和普通的 TextBox 一样
 28    ///            
 29    ///    
 30    /// 修改记录:
 31    ///  
 32    ///     日期            修改人        主要修改说明
 33    ///     
 34    ///        2005.9.8        陈达艺        新建
 35    ///        
 36    ///        
 37    /// </summary>    
 38    [DefaultProperty("ValidType")]
 39    [ToolboxData("<{0}:KTextBox runat=server></{0}:KTextBox>")]
 40    public class KTextBox : System.Web.UI.WebControls.TextBox, INamingContainer
 41    {
 42        私有成员变量#region 私有成员变量
 43
 44        //枚举可以验证的类型
 45        public enum AvailableType
 46        {
 47            NoSet, //不进行验证，功能和普通的 TextBox 一样
 48            EmailAddress, //Email地址
 49            RequiredField, //不为空
 50            Compare, //和另一个控件比较，看值是否相等
 51            RegularExpression, //正则表达式
 52            DateTime, //日期时间
 53            Date, //日期
 54            Time, //时间
 55            Num //数字
 56        }
 57
 58        //验证时间
 59        public enum ValidTime
 60        {
 61            OnBlur, //失去焦点时进行验证
 62            OnSubmit, //页面提交时进行验证
 63            All //失去焦点和页面提交时都进行验证
 64        }
 65
 66        private Label lblMessage;
 67        private AvailableType _validType;
 68        private string _errorMessage;
 69        private ValidTime _validMethod;
 70        private string _compareControl;
 71        private string _validRegularExpression;
 72
 73        #endregion 私有成员变量
 74
 75        公有属性#region 公有属性
 76
 77        /**//// <summary>
 78        /// Set/Get trimmed text of textbox
 79        /// </summary>
 80        [Browsable(false)]
 81        [Description("Set/Get trimmed text of textbox")]
 82        public string TextTrimed
 83        {
 84            get { return this.Text.Trim(); }
 85            set { this.Text = value.Trim(); }
 86        }
 87
 88        /**//// <summary>
 89        /// Get/Set value datetime of textbox
 90        /// </summary>
 91        [Browsable(false)]
 92        [Description("Get/Set value datetime of textbox")]
 93        public DateTime DateTimeValue
 94        {
 95            get
 96            {
 97                try
 98                {
 99                    DateTime dtm = DateTime.Parse(this.TextTrimed);
100                    return dtm;
101                }
102                catch (Exception exp)
103                {
104                    throw exp;
105                }
106            }
107            set { this.Text = value.ToString(); }
108        }
109
110
111        /**//// <summary>
112        /// Check whether the textbox is empty, if it is, return true
113        /// </summary>
114        [Browsable(false)]
115        [Description("Check whether the textbox is empty, if it is, return true")]
116        public bool IsEmpty
117        {
118            get { return this.Text.Length == 0; }
119        }
120
121        /**//// <summary>
122        /// Get whether the value of textbox is the type int
123        /// </summary>
124        [Browsable(false)]
125        [Description("Get whether the value of textbox is the type int")]
126        public bool IsInt
127        {
128            get
129            {
130                try
131                {
132                    int v = int.Parse(this.TextTrimed);
133                    return true;
134                }
135                catch
136                {
137                    return false;
138                }
139            }
140        }
141
142        /**//// <summary>
143        /// 获取和设置进行验证的数据类型
144        /// </summary>
145        [Category("验证")]
146        [Browsable(true)]
147        [Description("进行验证的数据类型")]
148        public AvailableType ValidType
149        {
150            get { return _validType; }
151            set { _validType = value; }
152        }
153
154        /**//// <summary>
155        /// 获取和设置验证错误时的提示信息
156        /// </summary>
157        [Category("验证")]
158        [Browsable(true)]
159        [Description("验证错误时的提示信息")]
160        public string ErrorMessage
161        {
162            get { return _errorMessage; }
163            set { _errorMessage = value; }
164        }
165
166        /**//// <summary>
167        /// 获取和设置触发验证的方法
168        /// </summary>
169        [Category("验证")]
170        [Browsable(true)]
171        [Description("触发验证的方法")]
172        public ValidTime ValidMethod
173        {
174            get { return _validMethod; }
175            set { _validMethod = value; }
176        }
177
178        /**//// <summary>
179        /// 获取和设置进行值比较的控件
180        /// </summary>
181        [Category("验证")]
182        [Browsable(true)]
183        [TypeConverter(typeof (CompareControlConverter))]
184        [Description("与此控件进行值比较的控件")]
185        public string CompareControl
186        {
187            get { return _compareControl; }
188            set { _compareControl = value; }
189        }
190
191        /**//// <summary>
192        /// 获取和设置进行验证的正则表达式
193        /// </summary>
194        [Category("验证")]
195        [Browsable(true)]
196        [Description("进行验证的正则表达式")]
197        public string ValidRegularExpression
198        {
199            get { return _validRegularExpression; }
200            set { _validRegularExpression = value; }
201        }
202
203        #endregion 公有属性
204
205        创建控件层次结构#region 创建控件层次结构
206
207        /**//// <summary>
208        /// 创建子控件
209        /// </summary>
210        protected override void CreateChildControls()
211        {
212            base.CreateChildControls();
213
214            lblMessage = new Label();
215            lblMessage.ID = "lblMessage";
216            lblMessage.ControlStyle.ForeColor = Color.Red;
217            lblMessage.EnableViewState = true;
218
219            AddAttributesInf();
220
221
222            this.Controls.Add(lblMessage);
223        }
224
225        /**//// <summary>
226        /// 向 lblMessage 添加一些名值对信息
227        /// </summary>
228        private void AddAttributesInf()
229        {
230            //根据验证的类型这些名值对信息不相同
231            switch (ValidType)
232            {
233                case AvailableType.NoSet:
234                    break;
235                case AvailableType.EmailAddress:
236                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
237                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
238                    break;
239                case AvailableType.RequiredField:
240                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
241                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
242                    break;
243                case AvailableType.Compare:
244                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
245                    lblMessage.Attributes.Add("controltocompare", CompareControl);
246                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
247                    break;
248                case AvailableType.RegularExpression:
249                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
250                    lblMessage.Attributes.Add("validRegularexpression", ValidRegularExpression);
251                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
252                    break;
253                case AvailableType.DateTime:
254                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
255                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
256                    break;
257                case AvailableType.Date:
258                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
259                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
260                    break;
261                case AvailableType.Time:
262                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
263                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
264                    break;
265                case AvailableType.Num:
266                    lblMessage.Attributes.Add("controltovalidate", this.UniqueID);
267                    lblMessage.Attributes.Add("evaluationfunction", "Is" + ValidType.ToString());
268                    break;
269
270            }
271
272        }
273
274        /**//// <summary>
275        /// 由于继承于 TextBox 控件，RenderContents 方法不会自动被系统调用，
276        /// 所以在 RenderEndTag 方法中调用 RenderContents ，用来呈现 CreateChildControls 方法中添加的控件，
277        /// 如果不这样，CreateChildControls 方法中添加的控件不会呈现在客户端
278        /// </summary>
279        /// <param name="writer"></param>
280        public override void RenderEndTag(System.Web.UI.HtmlTextWriter writer)
281        {
282            base.RenderEndTag(writer);
283            this.RenderContents(writer);
284        }
285
286        #endregion 创建控件层次结构
287
288        注册 javascript#region 注册 javascript
289
290        /**//// <summary>
291        /// 预呈现，在这里向客户端注册 javascript 块
292        /// </summary>
293        /// <param name="e"></param>
294        protected override void OnPreRender(EventArgs e)
295        {
296            base.OnPreRender(e);
297
298            //设置为进行验证时才向客户端注册 javascript
299            if (ValidType != AvailableType.NoSet)
300            {
301                RegisterClientScript(ValidType);
302
303                //注册客户端对象数组
304                Page.RegisterArrayDeclaration("Valid_Spans", "document.getElementById(\"" + this.UniqueID + "_lblMessage\")");
305                //注册页面提交时的 javascript
306                Page.RegisterOnSubmitStatement("ValidatorOnSubmit", "return ValidatorOnSubmit();");
307            }
308        }
309
310        /**//// <summary>
311        /// 注册客户端 javascript
312        /// </summary>
313        /// <param name="vaildType">验证类型</param>
314        private void RegisterClientScript(AvailableType vaildType)
315        {
316            string registerKey = vaildType.ToString();
317
318            ClientScript clientScript = new ClientScript();
319
320
321            //注册表单提交时的验证 javascript
322            if ((ValidMethod == ValidTime.All) || (ValidMethod == ValidTime.OnSubmit))
323            {
324                if (!Page.IsClientScriptBlockRegistered("validatorOnSubmit"))
325                {
326                    Page.RegisterClientScriptBlock("validatorOnSubmit", clientScript.GetValidatorOnSubmit());
327                }
328            }
329
330
331            //注册对指定类型数据进行验证的 javascript
332            if (!Page.IsClientScriptBlockRegistered(registerKey))
333            {
334                Page.RegisterClientScriptBlock(registerKey, GetClientScript(vaildType));
335            }
336
337            //如果设置为在失去焦点的时候进行验证，注册 onBlur 事件
338            if ((ValidMethod == ValidTime.All) || (ValidMethod == ValidTime.OnBlur))
339            {
340                //处理事件的函数
341                string validFunction = "Is" + ValidType.ToString() + "('" + this.UniqueID + "', '" + this.UniqueID + "_lblMessage')";
342
343                base.Attributes.Add("onBlur", validFunction);
344            }
345        }
346
347        /**//// <summary>
348        /// 根据需要验证的数据类型获取验证的 javascript
349        /// </summary>
350        /// <param name="vaildType">需要验证的数据类型</param>
351        /// <returns>javascript</returns>
352        private string GetClientScript(AvailableType vaildType)
353        {
354            string script = "";
355
356            //实例化创建脚本的对象
357            ClientScript clientScript = new ClientScript();
358
359            //根据验证类型获取验证 javascript
360            switch (vaildType)
361            {
362                case AvailableType.EmailAddress:
363                    script = clientScript.GetIsEmailAddressScript(ErrorMessage);
364                    break;
365                case AvailableType.RequiredField:
366                    script = clientScript.GetIsRequiredFieldScript(ErrorMessage);
367                    break;
368                case AvailableType.Compare:
369                    script = clientScript.GetIsCompareScript(ErrorMessage);
370                    break;
371                case AvailableType.RegularExpression:
372                    script = clientScript.GetIsRegularExpressionScript(ErrorMessage);
373                    break;
374                case AvailableType.DateTime:
375                    script = clientScript.GetIsDatetimeScript(ErrorMessage);
376                    break;
377                case AvailableType.Date:
378                    script = clientScript.GetIsDateScript(ErrorMessage);
379                    break;
380                case AvailableType.Time:
381                    script = clientScript.GetIsTimeScript(ErrorMessage);
382                    break;
383                case AvailableType.Num:
384                    script = clientScript.GetIsNumScript(ErrorMessage);
385                    break;
386
387            }
388
389            return script;
390
391        }
392
393        #endregion 注册 javascript
394    }
395
396    class CompareControlConverter : TypeConverter#region class CompareControlConverter : TypeConverter
397
398    /**//// <summary>
399    /// 对 KTextBox 控件 CompareControl 属性值进行类型转换的类
400    /// </summary>
401    public class CompareControlConverter : TypeConverter
402    {
403        public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
404        {
405            return true;
406        }
407
408        public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
409        {
410            return true;
411        }
412
413        public override System.ComponentModel.TypeConverter.StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
414        {
415            ArrayList controlList = new ArrayList();
416
417            foreach (IComponent comp in context.Container.Components)
418            {
419                if (comp is KTextBox)
420                {
421                    controlList.Add(((KTextBox) comp).ID);
422                }
423            }
424
425            return new StandardValuesCollection(controlList);
426        }
427
428    }
429
430    #endregion class CompareControlConverter : TypeConverter
431}

脚本生成:

  1 using System.Text;
  2
  3 namespace LangZi.WebControls
  4 {
  5    /**//// <summary>
  6    /// 功能：
  7    ///        生成客户端脚本
  8    ///            
  9    ///    
 10    /// 修改记录:
 11    ///  
 12    ///     日期            修改人        主要修改说明
 13    ///     
 14    ///        2005.9.8        陈达艺        新建
 15    ///        
 16    ///        
 17    /// </summary>    
 18    public class ClientScript
 19    {
 20        Constructor#region Constructor
 21
 22        public ClientScript()
 23        {
 24        }
 25
 26        #endregion
 27
 28        KTextBox#region KTextBox
 29
 30        /**//// <summary>
 31        /// 获取表单提交时的验证 javascript
 32        /// </summary>
 33        /// <returns>表单提交时的验证 javascript</returns>
 34        public string GetValidatorOnSubmit()
 35        {
 36            StringBuilder validatorOnSubmit = new StringBuilder();
 37
 38            validatorOnSubmit.Append("<script language=javascript> ");
 39            validatorOnSubmit.Append("function ValidatorOnSubmit() ");
 40            validatorOnSubmit.Append("{ ");
 41            validatorOnSubmit.Append(" var valid = true; ");
 42            validatorOnSubmit.Append(" var i; ");
 43            validatorOnSubmit.Append(" for (i = 0; i < Valid_Spans.length; i++) ");
 44            validatorOnSubmit.Append(" { ");
 45            validatorOnSubmit.Append("  var validFunction = Valid_Spans[i].evaluationfunction; ");
 46            validatorOnSubmit.Append("  var inputID = Valid_Spans[i].controltovalidate; ");
 47            validatorOnSubmit.Append("  var spanID = Valid_Spans[i].id; ");
 48            validatorOnSubmit.Append("  if (!eval(validFunction + \"(inputID,spanID)\")) ");
 49            validatorOnSubmit.Append("  { ");
 50            validatorOnSubmit.Append("   valid = false; ");
 51            validatorOnSubmit.Append("  } ");
 52            validatorOnSubmit.Append(" } ");
 53            validatorOnSubmit.Append(" return valid; ");
 54            validatorOnSubmit.Append("} ");
 55            validatorOnSubmit.Append("</script> ");
 56
 57            return validatorOnSubmit.ToString();
 58
 59        }
 60
 61        /**//// <summary>
 62        /// 获取验证 Email 地址的 javascript
 63        /// </summary>
 64        /// <param name="errMessage">验证错误时的提示信息</param>
 65        /// <returns>验证 javascript</returns>
 66        public string GetIsEmailAddressScript(string errMessage)
 67        {
 68            StringBuilder emailAddressScript = new StringBuilder();
 69
 70            emailAddressScript.Append("<script language=javascript> ");
 71            emailAddressScript.Append("function IsEmailAddress(inputID, spanID) ");
 72            emailAddressScript.Append("{ ");
 73            emailAddressScript.Append(" var emialAddress = document.getElementById(inputID).value; ");
 74            emailAddressScript.Append(" " + @"if(emialAddress.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/)!= -1)" + " ");
 75            emailAddressScript.Append(" { ");
 76            emailAddressScript.Append("  document.getElementById(spanID).innerText = ''; ");
 77            emailAddressScript.Append("  return true; ");
 78            emailAddressScript.Append(" } ");
 79            emailAddressScript.Append(" else ");
 80            emailAddressScript.Append(" { ");
 81            emailAddressScript.Append("  alert('" + errMessage + "'); ");
 82            emailAddressScript.Append("  document.getElementById(inputID).focus(); ");
 83            emailAddressScript.Append("  return false; ");
 84            emailAddressScript.Append(" } ");
 85            emailAddressScript.Append("} ");
 86            emailAddressScript.Append("</script> ");
 87
 88            return emailAddressScript.ToString();
 89        }
 90
 91        /**//// <summary>
 92        /// 获取验证不为空的 javascript
 93        /// </summary>
 94        /// <param name="errMessage">验证错误时的提示信息</param>
 95        /// <returns>验证 javascript</returns>
 96        public string GetIsRequiredFieldScript(string errMessage)
 97        {
 98            StringBuilder requiredFieldScript = new StringBuilder();
 99
100            requiredFieldScript.Append("<script language=javascript> ");
101            requiredFieldScript.Append("function IsRequiredField(inputID, spanID) ");
102            requiredFieldScript.Append("{ ");
103            requiredFieldScript.Append(" var inputValue = document.getElementById(inputID).value; ");
104            requiredFieldScript.Append(" if (inputValue != \"\") ");
105            requiredFieldScript.Append(" { ");
106            requiredFieldScript.Append("  document.getElementById(spanID).innerText = ''; ");
107            requiredFieldScript.Append("  return true; ");
108            requiredFieldScript.Append(" } ");
109            requiredFieldScript.Append(" else ");
110            requiredFieldScript.Append(" { ");
111            requiredFieldScript.Append("  alert('" + errMessage + "'); ");
112            requiredFieldScript.Append("  document.getElementById(inputID).focus(); ");
113            requiredFieldScript.Append("  return false; ");
114            requiredFieldScript.Append(" } ");
115            requiredFieldScript.Append(" ");
116            requiredFieldScript.Append(" ");
117            requiredFieldScript.Append(" ");
118            requiredFieldScript.Append("} ");
119            requiredFieldScript.Append("</script> ");
120
121            return requiredFieldScript.ToString();
122        }
123
124        /**//// <summary>
125        /// 获取验证二个 input 值是否相等的 javascript
126        /// </summary>
127        /// <param name="errMessage">验证错误时的提示信息</param>
128        /// <returns>验证二个 input 值是否相等的 javascript</returns>
129        public string GetIsCompareScript(string errMessage)
130        {
131            StringBuilder compareScript = new StringBuilder();
132
133            compareScript.Append("<script language=javascript> ");
134            compareScript.Append("function IsCompare(inputID, spanID) ");
135            compareScript.Append("{ ");
136            compareScript.Append(" var inputValue = document.getElementById(inputID).value; ");
137            compareScript.Append(" var compareID = document.getElementById(spanID).controltocompare; ");
138
139            compareScript.Append(" if (compareID == \"\") ");
140            compareScript.Append(" { ");
141            compareScript.Append("  alert('没有设置与ID为' + inputID + '的输入框比较的对象！'); ");
142            compareScript.Append("  return; ");
143            compareScript.Append(" } ");
144
145            compareScript.Append(" if (document.getElementById(compareID) == null) ");
146            compareScript.Append(" { ");
147            compareScript.Append("  alert('与ID为' + inputID + '的输入框比较的对象不存在！'); ");
148            compareScript.Append("  return; ");
149            compareScript.Append(" } ");
150
151            compareScript.Append(" var compareValue = document.getElementById(compareID).value; ");
152
153            compareScript.Append(" if (inputValue == compareValue) ");
154            compareScript.Append(" { ");
155            compareScript.Append("  document.getElementById(spanID).innerText = ''; ");
156            compareScript.Append("  return true; ");
157            compareScript.Append(" } ");
158            compareScript.Append(" else ");
159            compareScript.Append(" { ");
160            compareScript.Append("  alert('" + errMessage + "'); ");
161            compareScript.Append("  document.getElementById(inputID).focus(); ");
162            compareScript.Append("  return false; ");
163            compareScript.Append(" } ");
164
165            compareScript.Append("} ");
166            compareScript.Append("</script> ");
167
168
169            return compareScript.ToString();
170        }
171
172        /**//// <summary>
173        /// 获取输入数据是否匹配指定的正则表达式的 javascript
174        /// </summary>
175        /// <param name="errMessage">验证错误时的提示信息</param>
176        /// <returns>输入数据是否匹配指定的正则表达式的 javascript</returns>
177        public string GetIsRegularExpressionScript(string errMessage)
178        {
179            StringBuilder regularExpressionScript = new StringBuilder();
180
181            regularExpressionScript.Append("<script language=javascript> ");
182            regularExpressionScript.Append("function IsRegularExpression(inputID, spanID) ");
183            regularExpressionScript.Append("{ ");
184            regularExpressionScript.Append(" var inputValue = document.getElementById(inputID).value; ");
185            regularExpressionScript.Append(" var regularExpression = document.getElementById(spanID).validRegularexpression ");
186            regularExpressionScript.Append(" if (typeof(eval(regularExpression)) == \"undefined\") ");
187            regularExpressionScript.Append(" { ");
188            regularExpressionScript.Append("  alert('正则表达式不正确！'); ");
189            regularExpressionScript.Append("  return; ");
190            regularExpressionScript.Append(" } ");
191
192            regularExpressionScript.Append(" if (eval(regularExpression).test(inputValue)) ");
193            regularExpressionScript.Append(" { ");
194            regularExpressionScript.Append("  document.getElementById(spanID).innerText = ''; ");
195            regularExpressionScript.Append("  return true; ");
196            regularExpressionScript.Append(" } ");
197            regularExpressionScript.Append(" else ");
198            regularExpressionScript.Append(" { ");
199            regularExpressionScript.Append("  alert('" + errMessage + "'); ");
200            regularExpressionScript.Append("  document.getElementById(inputID).focus(); ");
201            regularExpressionScript.Append("  return false; ");
202            regularExpressionScript.Append(" } ");
203
204            regularExpressionScript.Append("} ");
205            regularExpressionScript.Append("</script> ");
206
207            return regularExpressionScript.ToString();
208
209        }
210
211        /**//// <summary>
212        /// 获取验证日期和时间的 javascript
213        /// </summary>
214        /// <param name="errMessage">验证错误时的提示信息</param>
215        /// <returns>验证日期和时间的 javascript</returns>
216        public string GetIsDatetimeScript(string errMessage)
217        {
218            StringBuilder datetimeScript = new StringBuilder();
219
220            datetimeScript.Append("<script language=javascript> ");
221            datetimeScript.Append("function IsDateTime(inputID, spanID) ");
222            datetimeScript.Append("{ ");
223
224            datetimeScript.Append(" var inputValue = document.getElementById(inputID).value; ");
225
226            datetimeScript.Append(" if(inputValue == '') ");
227            datetimeScript.Append(" { ");
228//            datetimeScript.Append("  document.getElementById(spanID).innerText = '请输入日期和时间'; ");
229            datetimeScript.Append("  alert('请输入日期和时间!')");
230            datetimeScript.Append("  return false; ");
231            datetimeScript.Append(" } ");
232
233            datetimeScript.Append(" var reg = /^(\\d{1,4})(-|\\/|\\.)(\\d{1,2})\\2(\\d{1,2}) (\\d{1,2}):(\\d{1,2}):(\\d{1,2})$/; ");
234            datetimeScript.Append(" var r = inputValue.match(reg); ");
235
236            datetimeScript.Append(" if(r == null) ");
237            datetimeScript.Append(" { ");
238            datetimeScript.Append("  alert('" + errMessage + "'); ");
239            datetimeScript.Append("  document.getElementById(inputID).focus(); ");
240            datetimeScript.Append("  return false; ");
241            datetimeScript.Append(" } ");
242
243            datetimeScript.Append(" var d= new Date(r[1], r[3]-1,r[4],r[5],r[6],r[7]); ");
244
245            datetimeScript.Append(" if(r[1] != d.getFullYear() || r[3] != d.getMonth() + 1 || r[4] != d.getDate() || r[5] != d.getHours() || r[6] != d.getMinutes() || r[7] != d.getSeconds()) ");
246            datetimeScript.Append(" { ");
247            datetimeScript.Append("  alert('" + errMessage + "'); ");
248            datetimeScript.Append("  document.getElementById(inputID).focus(); ");
249            datetimeScript.Append("  return false; ");
250            datetimeScript.Append(" } ");
251
252            datetimeScript.Append(" if(r[3].length == 1) r[3] = '0' + r[3]; ");
253            datetimeScript.Append(" if(r[4].length == 1) r[4] = '0' + r[4]; ");
254            datetimeScript.Append(" if(r[5].length == 1) r[5] = '0' + r[5]; ");
255            datetimeScript.Append(" if(r[6].length == 1) r[6] = '0' + r[6]; ");
256            datetimeScript.Append(" if(r[7].length == 1) r[7] = '0' + r[7]; ");
257            datetimeScript.Append(" document.getElementById(inputID).value = r[1] + '-' + r[3] + '-' + r[4] + ' ' + r[5] + ':' + r[6] + ':' + r[7]; ");
258            datetimeScript.Append(" document.getElementById(spanID).innerText = ''; ");
259
260            datetimeScript.Append(" return true; ");
261            datetimeScript.Append("} ");
262            datetimeScript.Append("</script> ");
263
264            return datetimeScript.ToString();
265
266        }
267
268        /**//// <summary>
269        /// 获取验证日期的 javascript
270        /// </summary>
271        /// <param name="errMessage">验证错误时的提示信息</param>
272        /// <returns>验证日期的 javascript</returns>
273        public string GetIsDateScript(string errMessage)
274        {
275            StringBuilder dateScript = new StringBuilder();
276
277            dateScript.Append("<script language=javascript> ");
278            dateScript.Append("function IsDate(inputID, spanID) ");
279            dateScript.Append("{ ");
280
281            dateScript.Append(" var inputValue = document.getElementById(inputID).value; ");
282
283            dateScript.Append(" if(inputValue == '') ");
284            dateScript.Append(" { ");
285//            dateScript.Append("  document.getElementById(spanID).innerText = '请输入日期'; ");
286            dateScript.Append("  alert('请输入日期!');");
287            dateScript.Append("  return false; ");
288            dateScript.Append(" } ");
289
290            dateScript.Append(" var reg = /^(\\d{1,4})(-|\\/|\\.)(\\d{1,2})\\2(\\d{1,2})$/; ");
291            dateScript.Append(" var r = inputValue.match(reg); ");
292
293            dateScript.Append(" if(r == null) ");
294            dateScript.Append(" { ");
295            dateScript.Append("  alert('" + errMessage + "'); ");
296            dateScript.Append("  document.getElementById(inputID).focus(); ");
297            dateScript.Append("  return false; ");
298            dateScript.Append(" } ");
299
300            dateScript.Append(" var d = new Date(r[1], r[3]-1, r[4]) ");
301
302            dateScript.Append(" if(r[1] != d.getFullYear() || r[3] != d.getMonth() + 1 || r[4] != d.getDate()) ");
303            dateScript.Append(" { ");
304            dateScript.Append("  alert('" + errMessage + "'); ");
305            dateScript.Append("  document.getElementById(inputID).focus(); ");
306            dateScript.Append("  return false; ");
307            dateScript.Append(" } ");
308
309
310            dateScript.Append(" if(r[3].length == 1) r[3] = '0' + r[3]; ");
311            dateScript.Append(" if(r[4].length == 1) r[4 ]= '0' + r[4]; ");
312
313
314            dateScript.Append(" var newValue = r[1] + '-' + r[3] + '-' + r[4]; ");
315            dateScript.Append(" document.getElementById(inputID).value = newValue; ");
316            dateScript.Append("  document.getElementById(spanID).innerText = ''; ");
317
318            dateScript.Append(" return true; ");
319            dateScript.Append("} ");
320            dateScript.Append("</script>");
321
322            return dateScript.ToString();
323        }
324
325
326        /**//// <summary>
327        /// 获取验证时间的 javascript
328        /// </summary>
329        /// <param name="errMessage">验证错误时的提示信息</param>
330        /// <returns>验证时间的 javascript</returns>
331        public string GetIsTimeScript(string errMessage)
332        {
333            StringBuilder timeScript = new StringBuilder();
334
335            timeScript.Append("<script language=javascript> ");
336            timeScript.Append("function IsTime(inputID, spanID) ");
337            timeScript.Append("{ ");
338            timeScript.Append(" var inputValue = document.getElementById(inputID).value; ");
339
340            timeScript.Append(" if(inputValue == '') ");
341            timeScript.Append(" { ");
342//            timeScript.Append("  document.getElementById(spanID).innerText = '请输入时间'; ");
343            timeScript.Append("   alert('请输入时间');");
344            timeScript.Append("  return false; ");
345            timeScript.Append(" } ");
346
347
348            timeScript.Append(" var reg = /^(\\d{1,2}):(\\d{1,2}):(\\d{1,2})$/; ");
349            timeScript.Append(" var r = inputValue.match(reg); ");
350
351            timeScript.Append(" if(r == null) ");
352            timeScript.Append(" { ");
353            timeScript.Append("  alert('" + errMessage + "'); ");
354            timeScript.Append("  document.getElementById(inputID).focus(); ");
355
356            timeScript.Append("  return false; ");
357            timeScript.Append(" } ");
358
359            timeScript.Append(" if(r[1] > 24 || r[2] > 60 || r[3] > 60) ");
360            timeScript.Append(" { ");
361            timeScript.Append("  alert('" + errMessage + "'); ");
362            timeScript.Append("  document.getElementById(inputID).focus(); ");
363            timeScript.Append("  return false; ");
364            timeScript.Append(" } ");
365
366            timeScript.Append(" if(r[1].length == 1) r[1] = '0' + r[1]; ");
367            timeScript.Append(" if(r[2].length == 1) r[2] = '0' + r[2]; ");
368            timeScript.Append(" if(r[3].length == 1) r[3] = '0' + r[3]; ");
369
370            timeScript.Append(" document.getElementById(inputID).value = r[1] + ':' + r[2] + ':' + r[3]; ");
371            timeScript.Append("  document.getElementById(spanID).innerText = ''; ");
372
373            timeScript.Append(" return true; ");
374            timeScript.Append("} ");
375            timeScript.Append("</script> ");
376
377            return timeScript.ToString();
378        }
379
380
381        /**//// <summary>
382        /// 获取验证时间的 javascript
383        /// </summary>
384        /// <param name="errMessage">验证错误时的提示信息</param>
385        /// <returns>验证时间的 javascript</returns>
386        public string GetIsNumScript(string errMessage)
387        {
388            StringBuilder numScript = new StringBuilder();
389
390            numScript.Append("<script language=javascript> ");
391            numScript.Append("function IsNum(inputID, spanID) ");
392            numScript.Append("{ ");
393            numScript.Append("    var inputValue = document.getElementById(inputID).value; ");
394            numScript.Append("    if(isNaN(inputValue)) ");
395            numScript.Append("    { ");
396            numScript.Append("        alert('请输入数字！'); ");
397            numScript.Append("      document.getElementById(inputID).focus(); ");
398            numScript.Append("        return false; ");
399            numScript.Append("    } ");
400
401
402            numScript.Append(" return true; ");
403            numScript.Append("} ");
404            numScript.Append("</script> ");
405
406            return numScript.ToString();
407        }
408
409        #endregion
410    }
411}

本文转自浪子博客园博客，原文链接：http://www.cnblogs.com/walkingboy/archive/2005/09/19/239654.html，如需转载请自行联系原作者