怎样先执行客户端代码再执行服务端代码？

Question

Button1.Attributes.Add("onclick","javascript:return confirm('是否删除');");

Answer 1

可以使用javascript
<script language="javascript">
function Button1_click()
{
dir = confirm(pmsg);
if (dir ==true)
  document.all("Button1").click();//服务端事件
}

Answer 2

U can also use behind-code.

Answer 3

Try the following:
    In DataGrid, I set a ImageButton in TemplateColumn  to delete selected  record:
         
     //add javascript in DataGrid ItemCreated events:
private void GridTeacherList_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
   {
System.Web.UI.WebControls.Image  TempImg;
TempImg=(System.Web.UI.WebControls.Image)e.Item.FindControl("ib_delete") ;
if(object.Equals(TempImg,null)==false)
{
TempImg.Attributes.Add("onClick","javascript:return confirm('Are you sure go to delete current teacher record?')"); 
}
   }
     //delete selected record
   public void GridTeacherList_Delete(object sender,DataGridCommandEventArgs e)
   {
      int I_TECH_CODE=int.Parse(e.Item.Cells[1].Text.ToString());
      MyClass.Classes.Teacher Delete_teacher=new MyClass.Classes.Teacher();
       try
{
  teacher.delete_SM_Teacher_Info(I_TECH_CODE);
}
      catch(Exception er)
{
            ShowErrMsg(er.Message.ToString());
} GridTeacherList_Bind();
   }

Answer 4

先执行服务器端.
Button1.Attributes.Add("onclick","javascript:return confirm('是否删除');");

Answer 5

在客户端写：<font onclick="if(!confirm('是否确定要删除该目录！')) return false;">  <asp:LinkButton id="btn_del" runat="server" CausesValidation="False" Text="删除" /></font>