52,802
社区成员




<asp:UpdateProgress ID="UpdateProgress1" runat="server">
<ProgressTemplate>
<%=str %>
</ProgressTemplate>
</asp:UpdateProgress>
<asp:UpdatePanel ID="upadte" runat="server">
<ContentTemplate>
<asp:Button ID="btn" runat="server" Text="按钮" OnClick="btn_Click" />
</ContentTemplate>
</asp:UpdatePanel>
protected string str = "正在加载中....";
protected void Page_Load(object sender, EventArgs e)
{
this.DataBind();
}
protected void btn_Click(object sender, EventArgs e)
{
this.str = "加载50%.....";
this.DataBind();
System.Threading.Thread.Sleep(2000);
this.str = "加载100%.....";
this.DataBind();
System.Threading.Thread.Sleep(2000);
}