安全文本框控件（包括：数字控件、字母控件等特色类型控件）

 

此类代码中的Beasyer.Lib类库会在本blog的C#类库中给出，且本控件的BeasyerType为自身编制的类型集合（若重量、单价、电话、手机、邮箱、身份证等等）。

GetTestAlign属性：文本框中文字的水平位置

AlwaysLeft属性：水平位置居左

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.ComponentModel;
using Beasyer.Lib;
using System.Text.RegularExpressions;

namespace Beasyer.WebControl.TxtControls
...{
    public class TextBox_Safe : TextBox
    ...{
        [DefaultValue(BeasyerType.String)]
        public BeasyerType BsStringType
        ...{
            get
            ...{
                getֵ#region getֵ
                object o = ViewState["_bsstringtype"];
                return o == null ? BeasyerType.String : (BeasyerType)o;
                #endregion
            }
            set
            ...{
                ViewState["_bsstringtype"] = value;
            }
        }

        [DefaultValue("")]
        public override string Text
        ...{
            get
            ...{
                return Regex.Replace(base.Text, RegexString.GetReplaceString(BsStringType), "", RegexOptions.IgnoreCase);
            }
            set
            ...{
                base.Text = value;
            }
        }        

        private string GetTestAlign
        ...{
            get
            ...{
                return GetHorizontalAlign.GetTextBoxHorizontalAlign(BsStringType);
            }
        }
        
        [DefaultValue(false)]
        public bool AlwaysLeft
        ...{
            get
            ...{
                object o = ViewState["_alwaysleft"];
                return o == null ? false : Convert.ToBoolean(o);
            }
            set
            ...{
                ViewState["_alwaysleft"] = value;
            }
        }

        protected override void AddAttributesToRender(HtmlTextWriter writer)
        ...{
            writer.AddAttribute("onKeyUp", @"value=value.replace(" + RegexString.GetReplaceString(BsStringType) + ",'')");
            writer.AddAttribute("onpaste", @"value=value.replace(" + RegexString.GetReplaceString(BsStringType) + ",'')");
            if (!AlwaysLeft)
            ...{
                writer.AddStyleAttribute("text-align", GetTestAlign);
            }
            base.AddAttributesToRender(writer);
        }
    }
}