单击Gridview内的RowCommand按钮后，页面变为空白 [英] Page becomes blank after click on the RowCommand Button inside the Gridview

问题描述

亲爱的朋友们，我的代码中存在问题。我正在做gridview插入，更新，删除事件程序。

我拿了一个页脚并在

中显示了两个文本框和一个添加按钮我已绑定gridview.and显示在正确的webform1.aspx和RowCommand事件。

当我点击添加按钮，从Gridview的行中将值插入到我的表中。所以我当前的页面变成空白。一切都变得隐藏在当前页面之外。为什么???



我的代码是

Dear friends I have a issue in my codes. I am doing gridview insert ,update,delete events program.
I took one footer and displayed two textboxs and one Add button in the
I have bound gridview.and displayed on the webform1.aspx properly.and on the RowCommand Event.
When I click on the add button for insert the values into my table from the Gridview’s rows. So my current page becomes blank. And everything becomes hide from the current page . why ???

My code are

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {

            if (!IsPostBack)
            if (e.CommandName == "ADD")
            {


                Button Button1 = (Button)GridView1.FooterRow.FindControl("Button1");
                TextBox txtfooterid = (TextBox)GridView1.FooterRow.FindControl("txtfooterid");
                TextBox txtfootername = (TextBox)GridView1.FooterRow.FindControl("txtfootername");
                SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=master;Integrated Security=True");
                SqlCommand cmd = new SqlCommand("insert into tab1(id,name) values('"+txtfooterid.Text+"','"+txtfootername.Text+"')", con);
                SqlDataAdapter da = new SqlDataAdapter();
                da.SelectCommand = cmd;
                DataTable dt = new DataTable();
                da.Fill(dt);
                GridView1.DataSource = dt;
                GridView1.DataBind();
            }
        }

推荐答案

当你的页面获得回发时，所以当页面获得回发时，新的对象是页面来自服务器，这就是为什么它变空。所以在pageload事件中检查页面的回发属性并做任何你想做的事。

As your page is getting postback so when page gets postback a new object of the page comes from the server that's why it is getting empty.So check the postback property of the page in pageload event and do whatever you want.

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