Binding data to a textbox , inside a templatefield of a gridview » C# and ASP.NET

Question

How can I bind data to a textbox which is in a templatefield of a gridview ? I want to use ExecuteScalar , get a value and throw it to that textbox .

Answer 1

Basically you create a method to return your value and then call it in the databinding expression. Take a look at this example:

In your aspx page call the function GetValue in the data binding expression:

<asp:GridView ID="GridTest" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:TemplateField>
            <ItemTemplate>
                <asp:TextBox ID="txtValue" Width="200px" runat="server" Text='<%#GetValue((int)Container.DataItem)%>'></asp:TextBox>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Then in your code behind you have the function to get the value:

protected void Page_Load(object sender, EventArgs e)
{

    GridTest.DataSource = new List<int>{1, 2, 3};
    GridTest.DataBind();

}

protected string GetValue(int ID)
{
    return "Value from Execute Scalar " + ID;
}

Answer 2

Use gridview rowdatabound event, like...

 protected void grd_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ((TextBox)e.Row.FindControl("yourTextboxID")).Text = "Throw new Value here";
    }
}