How to solve index out of range when gridview is empty in ASP.NET

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I am using a label in gridview which has a text value as Text='<%#Container.DataItemIndex+1 %>'

When the gridview is empty, I get the following error as

SQL

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

I know that Label doesn't accept 0. So how to solve this problem ??

Posted 23-Feb-14 20:14pm

Sriram Ramachandran

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Siva Hyderabad 24-Feb-14 2:17am

post your aspx code?

Sriram Ramachandran 24-Feb-14 2:23am

<asp:TemplateField HeaderText="S.No">

<itemtemplate>
<asp:Label ID="Label1" runat="server" Text='<%#Container.DataItemIndex+1 %>'>

<itemstyle horizontalalign="Left" width="10px" height="20px">

<asp:BoundField DataField="From" HeaderText="From" >
<itemstyle horizontalalign="Left" height="20px">

<asp:TemplateField HeaderText="Subject" ItemStyle-HorizontalAlign="Center" ControlStyle-ForeColor="Blue">
<itemtemplate>
<asp:HiddenField ID="hdnMailID" runat="server" Value='<%#Eval("Mail_Msg_ID")%>' />
<asp:LinkButton ID="lbView" OnClick="lbView_Click" runat="server" Text='<%#Eval("Subject")%>'>

<itemstyle horizontalalign="Left" height="20px">

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Tom Marvolo Riddle · Accepted Answer · 2014-02-23T20:19:00

Solution 1

Remove the label.Try this:

ASP.NET

<asp:TemplateField HeaderText="S No">
        <ItemTemplate>
           <%#Container.DataItemIndex +1 %>
        </ItemTemplate>
        </asp:TemplateField>

Label is not needed here

Posted 23-Feb-14 20:19pm

Tom Marvolo Riddle

Updated 23-Feb-14 20:23pm

v2

Comments

Sriram Ramachandran 24-Feb-14 2:25am

thanks ... I ll try and reply u asap

Tom Marvolo Riddle 24-Feb-14 2:25am

try it and let me know

Sriram Ramachandran 24-Feb-14 2:26am

But I ve a doubt ... The SNO has values 1,2,3 and how to fetch those numbers using ITEMTEMPLATE...

Tom Marvolo Riddle 24-Feb-14 2:28am

sorry i didn't get it.what is the need of fetching SNO.Please explain bit more

Tom Marvolo Riddle 24-Feb-14 2:30am

This is just used to show the total no records in gridview.any issues feel free to ask

Sriram Ramachandran 24-Feb-14 2:31am

Whenever the page is loaded, i ll always fetch the 1st row in gridview. which i wrote the code as
Label id1 = (Label)gvMailList.Rows[0].FindControl("Label1");
if it is 1... I ll make that row(which is 1st row always) as a different color

Tom Marvolo Riddle 24-Feb-14 2:33am

The above solution only meant for displaying Sno.It cannot be used for anything.

Sriram Ramachandran 24-Feb-14 2:37am

ok then I'll try some other methods ....

Tom Marvolo Riddle 24-Feb-14 2:38am

use rowdatabound event for highlighting the first row of gridview

Sriram Ramachandran 24-Feb-14 2:44am

ok I ll try that ...

Tom Marvolo Riddle 24-Feb-14 2:58am

happy coding :)

Tom Marvolo Riddle 24-Feb-14 4:25am

Try this in rowdatabound event
if (e.Row.RowType == DataControlRowType.DataRow)
{
gridview1.Rows[rowindex].Cells[cellindex].BackColor = Color.FromArgb(224, 187, 220);
}

Sriram Ramachandran 24-Feb-14 4:28am

thanks jas ... I already googled it and done to my requirement .....

Tom Marvolo Riddle 24-Feb-14 4:29am

Happy to help you.:)

Tom Marvolo Riddle 24-Feb-14 2:30am

did you get the result?

Sriram Ramachandran 28-Feb-14 1:52am

Yes Solved with some other ideas...