设置下拉框的初始值：
<asp:DropDownList ID="DropDownList1" runat="server">
<asp:ListItem Text="小学" Value="1"></asp:ListItem>
<asp:ListItem Text="中学" Value="2"></asp:ListItem>
<asp:ListItem Text="大学" Value="3"></asp:ListItem>
</asp:DropDownList>
string init = "2";
for (int i = 0; i < DropDownList1.Items.Count; i++)
{
if (DropDownList1.Items[i].Value.ToString() == init)
{
DropDownList1.Items[i].Selected = true;
}
}
DropDownList1.Items.Insert(0,new ListItem("选择类别",0));
<asp:GridView ID="GridView1" ShowFooter="false" BorderColor="Black" OnRowDataBound="GridView1_RowDataBound" runat="server" AutoGenerateColumns="False" Font-Size="12px" Width="549px" AllowPaging="True" >
<Columns>
<asp:BoundField DataField="ID" HeaderText="编号" />
<asp:BoundField DataField="EmpBirthday" HeaderText="生日" DataFormatString="{0:yyyy-MM-dd}" HtmlEncode="False" />
&nbs
1. 打开新的窗口并传送参数：
传送参数：
response.write("＜script＞window.open('*.aspx?id="+this.DropDownList1.SelectIndex+"&id1="+...+"')＜/script＞")
接收参数：
string a = Request.QueryString("id");
string b = Request.QueryString("id1");
2.为按钮添加对话框
Button1.Attributes. ......
首先我很遗憾的告诉大家，因为微软的偷懒，目前UpdatePanel还不支持文件上传。变相的解决办法就是UpdatePanel中设置PostBackTrigger：
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:FileUpload ID="FileUpload1" runat="serv ......
