HOW TO GET INFORMATION FROM DATALIST'S FOOTER ON BUTTONCLICK

Ankita Pandey

Total Post:183

Points:1285
Posted by  Ankita Pandey
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I have an ASP.NET DataList, with a footer defined thus:

<FooterTemplate>

    <asp:DropDownList ID="ddlStatusList" runat="server">

    </asp:DropDownList>

    <input id="txtNotes" type="text" placeholder="Notes" />

    <asp:Button runat="server" type="button" Text="Add" ID="btnAdd"></asp:Button>

</FooterTemplate>

What I'm looking to do, is, on click of btnAdd, get the values from txtNotes and ddlStatusList, but I can't work out how to access the controls, let alone the values.

I can't follow something like this because I won't be able to check if my button has been clicked (as is possible with a checkbox), and even then, I'm not sure if I'll be able to use findControl as demonstrated. (Does a DataList's footer behave differently to an item?)

I can't use the Button's commandName & commandValue attributes because, when databound, the text inputted won't exist and therefore I can't set the CommandValue.

I have tried using a LinkButton rather than a normal .NET Button, but come accross the same issue, whereby I cannot work out how to get the values from the TextBox/DropDownList

  1. ezra heywood

    Post:145

    Points:1019
    Re: How to get information from DataList's footer on buttonClick

    Hi Ankita,


    You can use Control.NamingContainer to access other controls in a row:

        <FooterTemplate>

            <asp:DropDownList ID="ddlStatusList" runat="server">

            </asp:DropDownList>

            <input id="txtNotes" type="text" placeholder="Notes" runat="server" />

            <asp:Button runat="server" type="button" Text="Add" ID="btnAdd" OnClick="btnAdd_Click"></asp:Button>

        </FooterTemplate>

        protected void btnAdd_Click(object sender, EventArgs e)

        {

            Button btnAdd = (Button)sender;

            DropDownList ddlStatusList = (DropDownList)btnAdd.NamingContainer.FindControl("ddlStatusList");

            System.Web.UI.HtmlControls.HtmlInputText txtNotes = (System.Web.UI.HtmlControls.HtmlInputText)btnAdd.NamingContainer.FindControl("txtNotes");

            int index = ddlStatusList.SelectedIndex;

            string text = txtNotes.Value;

        }

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