How do you add a Gridview programmatically to an UpdatePanel

asp.net, c#, gridview, updatepanel

Solution

Well according to:

And I don't mind having the update panel created at the design time. I just need to be able to add stuff (like tables that contain gridviews that contain buttons into it) programmatically and then be able to do a partial postback

Basically I used your code with small changes:

Removed the binding from the `Init` event and I execute it in the `Load` event

The `UpdatePanel` is created at design time with a nested panel, and you simply add your dynamic controls to that panel

This code will do it (it works on my environment):

ASPX

    <asp:ScriptManager runat="server" />
    <asp:UpdatePanel runat="server">
        <ContentTemplate>
            <asp:Panel runat="server" ID="myPanel">
            </asp:Panel>
            <br />
            <asp:Label runat="server" ID="lblMessage"></asp:Label>
        </ContentTemplate>
    </asp:UpdatePanel>

Code behind

    protected void Page_Init(object sender, EventArgs e)
    {
        Button button1 = new Button();
        button1.ID = "Button1";
        button1.Text = "Submit";
        button1.Click += new EventHandler(Button_Click);

        Label label1 = new Label();
        label1.ID = "Label1";
        label1.Text = "A full page postback occurred.";

        var s1 = Builder<Product>.CreateListOfSize(15).Build();
        GridView gv1 = new GridView();
        gv1.DataSource = s1;
        createButton(gv1);
        gv1.RowCommand += new GridViewCommandEventHandler(CustomersGridView_RowCommand);

        this.myPanel.Controls.Add(button1);
        this.myPanel.Controls.Add(label1);
        this.myPanel.Controls.Add(gv1);
    }

    void createButton(GridView g)
    {
        ButtonField tea = new ButtonField();
        tea.ButtonType = ButtonType.Image;
        tea.ImageUrl = "~/checkdailyinventory.bmp";
        tea.CommandName = "buttonClicked";
        tea.HeaderText = "space";
        g.Columns.Add(tea);
    }

    protected void Button_Click(object sender, EventArgs e)
    {
        ((Label)Page.FindControl("Label1")).Text = "Panel refreshed at " +
            DateTime.Now.ToString();
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        this.DataBind();
    }

    public void CustomersGridView_RowCommand(Object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName == "buttonClicked")
        {
            //int index = Convert.ToInt32(e.CommandArgument);

            this.lblMessage.Text = DateTime.Now.ToString();
        }
    }

Output

Problem

I can't figure out how to programmatically add a `GridView` with buttons to an `UpdatePanel`. I can do it with simple controls such as buttons and labels, but when I try to add a `GridView` with buttons a full `Postback()` occurs. ``` <%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected override void OnInit(EventArgs e) { UpdatePanel up1 = new UpdatePanel(); up1.ID = "UpdatePanel1"; Button button1 = new Button(); button1.ID = "Button1"; button1.Text = "Submit"; button1.Click += new EventHandler(Button_Click); Label label1 = new Label(); label1.ID = "Label1"; label1.Text = "A full page postback occurred."; GridView gv1 = new GridView(); //Where the xml gets bonded to the data grind XmlDataSource xds = new XmlDataSource(); xds.Data = xml; xds.DataBind(); xds.EnableCaching = false; gv1.DataSource = xds; createButton(gv1, up1); gv1.RowCommand += new GridViewCommandEventHandler(CustomersGridView_RowCommand); gv1.DataBind(); up1.ChildrenAsTriggers = true; up1.ContentTemplateContainer.Controls.Add(button1); up1.ContentTemplateContainer.Controls.Add(label1); up1.ContentTemplateContainer.Controls.Add(gv1); Page.Form.Controls.Add(up1); } protected void Page_Load(object sender, EventArgs e) { } public void CustomersGridView_RowCommand(Object sender, GridViewCommandEventArgs e) { if (e.CommandName == "buttonClicked") { int index = Convert.ToInt32(e.CommandArgument); } } void createButton(GridView g) { ButtonField tea = new ButtonField(); tea.ButtonType = ButtonType.Image; tea.ImageUrl = "~/checkdailyinventory.bmp"; tea.CommandName = "buttonClicked"; tea.HeaderText = "space"; g.Columns.Add(tea); } protected void Button_Click(object sender, EventArgs e) { ((Label)Page.FindControl("Label1")).Text = "Panel refreshed at " + DateTime.Now.ToString(); } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title>UpdatePanel Constructor Example</title> </head> <body> <form id="form1" runat="server"> <div> <asp:Button ID="Button2" runat="server" Text="Button" /> <asp:ScriptManager ID="ScriptManager1" runat="server" /> </div> </form> </body> </html> ``` So how do you add a gridview with buttons programmatically to an `UpdatePanel` without causing a full `PostBack()` if the `GridView` is clicked? Edit: Other things I have tried ``` void gv1_RowDataBound(object sender, GridViewRowEventArgs e) { AsyncPostBackTrigger t = new AsyncPostBackTrigger(); t.ControlID = e.Row.Cells[0].ClientID; t.EventName = "blah"; up1.Triggers.Add(t); } ```

Original source