Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

GridView not showing contents of EmptyDataTemplate and grid headers at same time

Posted on 2013-01-29
5
495 Views
Last Modified: 2013-11-19
Hello

I have a gridview with multiple columns ecah defined within an <asp:TemplateField> tag.  Now when I have no rows returned from my DB  I want my grid to retain its headers but also show the "No Rows Returned" message.

Normally I do this by binding a single empty object within an array as my returned results as follows:

if (list == null || list.Length == 0)
{
      list = new MyGridListItem[] { new MyGridListItem() };
 }

 return list;

But for some reason when I do this I seeing my grid headers and then an empty row in the grid instead of the "No Rows Returned" message??  If I simply return null from this method then I get my message but no grid headers.

Has anyone any idea whay this should be?

Many thanks
Sam
0
Comment
Question by:Samanthaoneill1502
5 Comments
 
LVL 20

Expert Comment

by:informaniac
ID: 38831556
0
 
LVL 41

Expert Comment

by:guru_sami
ID: 38831795
Check this: http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/Q_28009390.html

Why it's doing that is because EmptyDataItemTemplate is shown if the datasource is null. Since you array with one item, it's not considered empty.
0
 
LVL 10

Accepted Solution

by:
Monica P earned 500 total points
ID: 38834180
Checkout like this

<asp:GridView ID="gvdata" runat="server" CssClass="Gridview" AutoGenerateColumns="false" HeaderStyle-BackColor="#7779AF" HeaderStyle-ForeColor="White">
<Columns>
<asp:BoundField DataField="UserName" HeaderText="Name"/>
<asp:BoundField DataField ="FirstName" HeaderText="FirstName" />
<asp:BoundField DataField="LastName" HeaderText="LastName" />
<asp:BoundField DataField="Location" HeaderText="Location" />
</Columns>
</asp:GridView>

Open in new window



protected void BindGridviewData()
{
SqlConnection con = new SqlConnection("Data Source=xxx;Initial Catalog=testDB;Integrated Security=True");
con.Open();
SqlCommand cmd = new SqlCommand("select UserName,FirstName,LastName,Location from UserDetails", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
if(ds.Tables[0].Rows.Count==0)
{
ds.Tables[0].Rows.Add(ds.Tables[0].NewRow());
gvdata.DataSource = ds;
gvdata.DataBind();
int columncount = gvdata.Rows[0].Cells.Count;
gvdata.Rows[0].Cells.Clear();
gvdata.Rows[0].Cells.Add(new TableCell());
gvdata.Rows[0].Cells[0].ColumnSpan = columncount;
gvdata.Rows[0].Cells[0].Text = "No Records Found";
}
else
{
gvdata.DataSource = ds;
gvdata.DataBind();  
}
con.Close();
}

Open in new window

0
 
LVL 10

Expert Comment

by:Monica P
ID: 38834184
0
 

Author Closing Comment

by:Samanthaoneill1502
ID: 38838811
This worked perfectly for my situation.  Many thanks much appreciated.
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Learn by example how to specify CSS selectors for Selenium WebDriver test automation software.
Boost your ability to deliver ambitious and competitive web apps by choosing the right JavaScript framework to best suit your project’s needs.
Any person in technology especially those working for big companies should at least know about the basics of web accessibility. Believe it or not there are even laws in place that require businesses to provide such means for the disabled and aging p…
The is a quite short video tutorial. In this video, I'm going to show you how to create self-host WordPress blog with free hosting service.

829 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question