项目js1

验证输入数字和正整数:

if (isNaN(sender.value)) { alert("请输入数字"); sender.value = "0"; return; } var num = parseInt(sender.value); if (num < 0) { alert("请输入正整数!"); sender.value = "0"; return; }

 

两级联动专业和自动生成复选框选择效果：

JobPublish.aspx

<select runat="server" id="selProfessionTypes" onchange="GetProfessions(this)" name="D1"> </select><br /> <select runat="server" id="selProfessions" onchange="SelectProfession(this)" name="D2"> </select> <td colspan="2" id="tdSelect" runat="server"></td> function GetProfessions(sender) { var Type = sender.value; var dt = Ajax.Ajax.GetProfessionalsByTypeID(Type).value; var ddlProfessions = document.getElementById("<%=selProfessions.ClientID %>"); ddlProfessions.options.length = 0; ddlProfessions.options.add(new Option("请选择", "-1")); if (dt != null && dt.Rows.length > 0) { for (var i = 0; i < dt.Rows.length; i++) { ddlProfessions.options.add(new Option(dt.Rows[i]["Name"].toString(), dt.Rows[i]["ID"].toString())); } } } function SelectProfession(sender) { var Profession = document.getElementById("<%=hfProfessions.ClientID %>").value.split(','); var count = 0; for (var i = 0; i < Profession.length; i++) { if (Profession[i] != "") { if (count > 1) { alert('最多只能选择三项'); return } if (Profession[i] == sender.value) { alert('你重复选择了一项专业'); return; } count += 1; } } if (document.getElementById("<%=hfProfessions.ClientID %>").value == "") { document.getElementById("<%=hfProfessions.ClientID %>").value = ","; } document.getElementById("<%=hfProfessions.ClientID %>").value += sender.value + ","; var td = document.getElementById("<%=tdSelect.ClientID %>"); var option = sender.getElementsByTagName("option"); var text = ""; for (var i = 0; i < option.length; ++i) { if (option[i].selected) { text = option[i].text; } } td.innerHTML += " <input id='cb" + sender.value + "' type='checkbox' value='" + sender.value + "' onclick='ChangeProfession(this," + sender.value + ")' checked='true' /><label id='lab" + sender.value + "'> " + text + "</label>"; } function ChangeProfession(sender,value) { var td = document.getElementById("<%=tdSelect.ClientID %>"); td.removeChild(sender); td.removeChild(document.getElementById("lab" + value)); document.getElementById("<%=hfProfessions.ClientID %>").value = document.getElementById("<%=hfProfessions.ClientID %>").value.replace("," + value + ",", ","); }

JobPublish.aspx.cs

AjaxPro.Utility.RegisterTypeForAjax(typeof(Ajax.Ajax));

Ajax.cs

[AjaxPro.AjaxMethod] public static DataTable GetProfessionalsByTypeID(int TypeID) { DataTable dt = new DAL.Tables.T_Professionals().Open("[ID],[Name]", "TypeID = " + TypeID.ToString(), ""); return dt; }

 

调用后台页面代码:

Register.aspx

function CheckEmail() { var sender = document.getElementById("<%=tbEmail.ClientID %>"); if (sender.value == "") { alert("Email不能为空"); return false; } if (sender.value.length > 100) { alert("email地址长度不能超过100位!"); return false; } var str = sender.value.toLowerCase().replace(" ", ""); var regu = "^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|NET|com|COM|gov|GOV|mil|MIL|org|ORG|edu|EDU|int|INT|name|NAME)$"; var re = new RegExp(regu); if (str.search(re) == -1) { alert("Email地址错误!"); return false; } var Result = Users_Register.CheckEmail(sender.value).value; if (Result) { alert("Email地址已存在!"); return false; } return true; } 

Register.aspx.cs

AjaxPro.Utility.RegisterTypeForAjax(typeof(Users_Register)); /// <summary> /// 检测Email是否存在 /// </summary> /// <param name="Name"></param> /// <returns></returns> [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.ReadWrite)] public bool CheckEmail(string Email) { bool Result = DAL.Functions.F_CheckUserNameOrEmail(Email.Replace(" ", ""), false); return Result; }  

 

后台传值到js:

ResumeManage.aspx

<asp:DataList> <asp:CheckBox runat="server" ID="cbResume" /> </asp:DataList> function Select(sender, id) { var idList = document.getElementById("<%=hfIdLists.ClientID %>"); if (sender.checked) { if (idList.value == "") { idList.value = ","; } idList.value += id + ","; } else { idList.value = idList.value.replace("," + id + ",", ","); } }

ResumeManage.aspx.cs

protected void dlResumes_ItemDataBound(object sender, DataListItemEventArgs e) { if (e.Item.ItemType != ListItemType.Header) { DataRow r = ((DataRowView)e.Item.DataItem).Row; CheckBox cb = (CheckBox)e.Item.FindControl("cbResume"); cb.Attributes.Add("onclick", "Select(this,"+r["ID"].ToString()+")"); } }