GridView 中 Lable控件问题?

Question

GridView 中模板(Pager Template)放置了一个Lable控件,用来显示当前页.
 
     protected void gvChannel_PageIndexChanged(object sender, EventArgs e)
    {
        GridViewDataBind(gvChannel.PageIndex + 1);
        ((Label)gvChannel.FindControl("lblShow")).Text = string.Format("{0}/{1}", gvChannel.PageIndex + 1, gvChannel.PageCount);//提示未将对像的引用设置到对像的实例
    }其中gvChannel为DridView
    lblShow(id)为Label

Answer 1

应该是没找到lblShow
前台是什么写的？

Answer 2

string str = string.Format("{0}/{1}", gvChannel.PageIndex + 1, gvChannel.PageCount);Page.RegisterClientScriptBlock("", "<script>document.getElementById('lblShow').innerHTML='" + str + "';</script>");

Answer 3

http://topic.csdn.net/u/20070305/12/9280f23b-6eb1-450b-9a5c-4d2bba5bf655.html