文本框按Enter就触发button的onclick事件

aspx页面

<form id="form1" runat="server">

......

 <asp:TextBox MaxLength="20" ID="txtSearch"  runat="server"></asp:TextBox>

<asp:Button ID="btnSearch" runat="server"   OnClick="btnSearch_Click"   /> 

......

</form> 

 

cs代码

   protected void Page_Load(object sender, EventArgs e)
    {
        txtSearch.Attributes.Add("onkeydown", "if(event.keyCode==13){eval('window.document.form1.btnSearch.focus();');}");

     }