How to show green and red flag on the basis of true and false value from database

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SQL-Server-2008R2

Hi All,

I have a database table in which I have bool value for flag column.

Now I want to show Green flag for true value and Red flag for false value.

I try below code but I am not able to fetch red flag in my gridview.

Also when their is no data in the gridview I want to show a message that their is not data in the gridview.

What I have tried:

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<asp:GridView runat ="Server" ID="Gridview1" AutoGenerateColumns="False"
CellPadding="10" ForeColor="#333333" DataKeyNames="RequestNumber,Flag"
GridLines="None">

<columns><asp:TemplateField HeaderText="Flag">
<itemtemplate>
<asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="Images/True.jpg" Visible='<%# (bool)Eval("Flag") %>'/>
<asp:ImageButton ID="ImageButton2" runat="server" ImageUrl="Images/False.jpg" Visible='<%# !(bool)Eval("Flag") %>' />

Posted 31-Jul-16 20:23pm

amitesh1989

Updated 31-Jul-16 21:09pm

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Suvendu Shekhar Giri · Answer 1 · 2016-07-31T21:09:00

More preferably you can keep the all logic regarding this in the Gridview RowDataBound event. You can do something like-

C#

protected void MyGrid_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        ImageButton btn = (ImageButton )e.Row.FindControl("ImageButton1");
        btn.Visible= bool.Parse(DataBinder.Eval(e.Row.DataItem, "Flag").ToString());
        //any other logic as per your requirement
    }
}

For showing message when there is no data use EmptyDataTemplate

HTML

<emptydatatemplate>
    No data found!
</emptydatatemplate>

Please let me know if you still have any queries.

Hope, it helps :)