Question

Gridview edit link problem when sorting

Asked by: gjok

Hi.
Using c#.Net 2.0

I have a gridview with paging and sorting - both work fine.
I added an Edit commandfield which obtains the record ID from the first column and uses it as a querystring, etc..
This works fine when the page first loads, but when I click a column header to sort the list, the ID does not reflect the correct record, but shows the ID of the record before sorting.

For example:
The list of people is ordered by Lastname by default, and the 1st item in the list has an ID of 23.

If I sort the gridview by, say firstname, then although the 1st item in the new render has an ID of 44, the Edit commandbutton still says 23 - not 44.

Any ideas??

protected void grdArtists_RowEditing(object sender, GridViewEditEventArgs e)
  {
    // With auto-generated fields...
    //GridViewRow row = grdArtists.Rows[e.NewEditIndex];
    //string ArtistID = row.Cells[0].Text;
    //Response.Redirect("EditArtist.aspx?id=" + ArtistID);
 
    // With a bound field...
    GridViewRow row = grdArtists.Rows[e.NewEditIndex];
    Label i = row.FindControl("lblID") as Label;
    int ArtistID = Convert.ToInt32(i.Text);
    Response.Redirect("EditArtist.aspx?id=" + ArtistID);
  }

                                  
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Asked On
2008-02-26 at 15:54:20ID23195531
Tags

c#, asp.net

Topics

Programming for ASP.NET

,

.NET

,

C# Programming Language

Participating Experts
2
Points
0
Comments
5

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Answers

 

by: ThejakaPosted on 2008-02-26 at 17:58:48ID: 20990708

If the record IDs are as numbered, for example, from 1 to 10, and you start editing row with ID = 3, then re-sort, the same row continues to have focus, so if you click Edit again, the same row goes into edit mode again.

If you select a different row, then click edit, the appropriate ID should come up...

 

by: gjokPosted on 2008-02-27 at 01:45:25ID: 20992606

It doesnt though - its madness.

It is as if the edit linkbutton doesnt know that I have sorted the list - It allways gives the ID of the 'ordered by Lastname' listing which is the default.

Look at the snippet below...
When ordered by Lastname (default) I click Edit on the first record an get ID 23

If I then sort by ID or FirstName or email and click Edit on the first record (which is now ID 44), I still get ID 23 !

ID	First	Last	Email
-------+-------+-------+-----------------------+-----------+
23	Eli	Cato	eli.cato@pill.net	Edit Delete
44	Lauren	Aldred	l.aldred@kepsak.com	Edit Delete

                                              
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by: gjokPosted on 2008-02-27 at 02:27:35ID: 20992802

Dont' worry - I have solved the problem by doing away with the built-in commandButtons and building my own.
It would have been nice to hav known why the original approach wasnt working though.

<asp:BoundField DataField="ArtistID" HeaderText="ID" SortExpression="ArtistID" />
<asp:BoundField DataField="Firstname" HeaderText="Forename" SortExpression="Firstname" />
<asp:BoundField DataField="LastName" HeaderText="Surname" SortExpression="LastName" />
<asp:BoundField DataField="EmailAddress" HeaderText="Email/UserID" SortExpression="EmailAddress" />
<asp:TemplateField HeaderText="ID" Visible="true">
    <ItemTemplate>
      <asp:HyperLink ID="HyperLink1" NavigateUrl='<%# FormatEditUrl( (int)Eval("ArtistID")) %>' runat="server">Edit</asp:HyperLink>
        <asp:Label ID="lblEdit" runat="server" Text=""></asp:Label>
    </ItemTemplate>
    <ItemStyle HorizontalAlign="Left" Width="32px" />
    <HeaderStyle HorizontalAlign="Left" />
</asp:TemplateField>
                                              
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by: Vee_ModPosted on 2008-03-02 at 05:30:36ID: 21025917

Closed, 100 points refunded.
Vee_Mod
Community Support Moderator

20120131-EE-VQP-002

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