ScriptManager.RegisterStartupScript()方法

如果页面中不用Ajax

cs中运行某段js代码方式可以是：
Page.ClientScript.RegisterStartupScript(Page.GetType(),””,”<script>window.open(‘default2.aspx’)</script>”);

如果页面中使用了Ajax

则上述代码即使执行也无效果。对这种情况我们通常采用：
ScriptManager.RegisterStartupScript(UpdatePanel1,typeof(UpdatePanel), “success”, “alert(‘更新成功’)”,true);

其中第一个参数为要注册脚本的控件ID。

第二个参数为注册脚本控件类型。

第三个脚本函数的名字，随便起。
第四个是脚本内容。
第五个是标明是否再添加脚本标签，如果第四个参数里包含了<script></script>标签，此处则为false，否则为true。

例子

<center>
       <asp:UpdatePanel ID=”UpdatePanel1″runat=”server”>
           <ContentTemplate>
               <table style=”width: 80%;” cellspacing=”10″cellpadding=”10″ class=”table”>
                   <tr>
                       <td>
                           工号
                       </td>
                       <td>
                           <asp:TextBox ID=”txtNum” runat=”server”CssClass=”input”

                                ReadOnly=”true”></asp:TextBox>
                       </td>
                   </tr>
                   <tr>
                       <td>
                           姓名
                       </td>
                       <td>
                           <asp:TextBox ID=”txtName” runat=”server”

                                CssClass=”input”></asp:TextBox>
                       </td>
                   </tr>
                   <tr>
                       <td>
                           性别
                       </td>
                       <td>
                           <asp:TextBox ID=”txtGender” runat=”server”

                                  CssClass=”input”></asp:TextBox>
                       </td>
                   </tr>
                   <tr>
                       <td>
                           密码
                       </td>
                       <td>
                           <asp:TextBox ID=”txtPwd” runat=”server”

                                CssClass=”input”></asp:TextBox>
                       </td>
                   </tr>
                   <tr>
                       <td>
                           手机号
                       </td>
                       <td>
                           <asp:TextBox ID=”txtCellphone” runat=”server”

                                  CssClass=”input”></asp:TextBox>
                       </td>
                   </tr>
                   <tr>
                       <td>
                           出生年月
                       </td>
                       <td>
                           <asp:TextBox ID=”txtBirthday” runat=”server”

                                 CssClass=”input”></asp:TextBox>
                           <cc1:CalendarExtender ID=”CalendarExtender1″runat=”server”

                                 TargetControlID=”txtBirthday”
                                Format=”yyyy-MM-dd”>
                           </cc1:CalendarExtender>
                       </td>
                   </tr>
               </table>
           </ContentTemplate>
           <Triggers>
               <asp:AsyncPostBackTrigger ControlID=”btnSubmit”EventName=”Click” />
           </Triggers>
       </asp:UpdatePanel>
   </center>
   <ul>
       <li><span>
           <asp:Button ID=”btnSubmit” runat=”server” Text=”提交”CssClass=”btn”

                OnClick=”btnSubmit_Click”/></span>
           <span>
               <asp:Button ID=”btnClear” runat=”server” Text=”重置”CssClass=”btn”

                  OnClick=”btnClear_Click”/></span>
           <spanid=”wait”></span>
       </li>
   </ul>

 protected void btnSubmit_Click(object sender,EventArgs e)
       {

           try
           {

               newTeacherBLL.ModifyNameByNum(this.txtNum.Text,this.txtName.Text);
               newTeacherBLL.ModifyGenderByNum(this.txtNum.Text,this.txtGender.Text);
               newTeacherBLL.ModifyPwdByNum(this.txtNum.Text,this.txtPwd.Text);
               newTeacherBLL.ModifyCellPhoneByNum(this.txtNum.Text,this.txtCellphone.Text);
               newTeacherBLL.ModifyBirthDayByNum(this.txtNum.Text,Convert.ToDateTime

                            (this.txtBirthday.Text));
               ScriptManager.RegisterStartupScript(UpdatePanel1,typeof

                            (UpdatePanel), “success”, “alert(‘更新成功’)”, true);
           }
           catch
           {

               ScriptManager.RegisterStartupScript(UpdatePanel1,typeof

                          (UpdatePanel), “wrong”, “alert(‘更新失败,请重新操作’)”, true);
           }
          
       }