Identifying Rows

[Ben]

In C#, I have a GridView that bounds to a DataView.
When the user click a certain button, I want it to go through the
gridview rows and update some object based on an ID.

The ID should be invisible... so I put a <LABELin one of the cells
and trying to access it via FindControl... but it's always returning
null.

I even made each LABEL have it's own ID (being equal to MonitorID1, 2,
3... etc), it's still not getting it.. here's a snippet, maybe someone
has ideas on what's wrong?
protected void btnSetMaintenance_Click(object sender, EventArgs e)
{
int iCount = 0;
foreach (GridViewRow gvr in gridIssues.Rows)
{
Label lbl =
(Label)gvr.Cells[1].FindControl("MonitorID" + iCount.ToString());

if(lbl != null)
Response.Write(lbl.Text + "<BR>");
else
Response.Write("not found (" + gvr.Cells[1].Text +
iCount.ToString() + "<BR>");

iCount++;
}
}
Thank you!

[Mark Rae [MVP]]

"Ben" <be******@gmail.comwrote in message
news:22**********************************@x69g2000 hsx.googlegroups.com...

In C#, I have a GridView that is bound to a DataView.
When the user clicks a certain button, I want it to go through the
GridView rows and update some object based on an ID.

Is the button that the user clicks outside the GridView?

Is the object to be updated also outside the GridView?

Label lbl = (Label)gvr.Cells[1].FindControl("MonitorID" +
iCount.ToString());

Set a breakpoint on the line above and, in the Immediate window, type
gvr.Cells[1].Controls.Count and press Enter - how many controls are in that
cell?

Then, still in the Immediate window, type gvr.Cells[1].Controls[0] and press
Enter - what do you see?

Repeat for the remaining controls in that cell...
--
Mark Rae
ASP.NET MVP
http://www.markrae.net

[Mark Rae [MVP]]

"Ben" <be******@gmail.comwrote in message
news:0f**********************************@z26g2000 pre.googlegroups.com...

Thanks you very much for the responses.... the immediate window showed
this while debugging...any ideas why it's finding 0 controls? you can
see the Text of the cell holds the label:

Looks very much like you didn't actually add a label control to the cell in
question, but rather you added the rendered text of a label as the cell's
Text property...

That is why gvr.Cells[1].Controls.Count is returning a value of zero,
because there aren't any actual controls in the cell...
--
Mark Rae
ASP.NET MVP
http://www.markrae.net

[Mark Rae [MVP]]

"Phil H" <go****@philphall.me.ukwrote in message
news:d1**********************************@t1g2000p ra.googlegroups.com...

(In deference to Mark)

There's no need at all to hold me in any sort of deference - if you think
I'm wrong, then please say so... :-)

I've noticed that a lot of posters on this forum fail to differentiate
properly
between the underlying data from what is displayed in databound controls.

I understand what you're saying, but in this case it didn't seem to me that
the OP actually wanted to *change* the GridView's underlying data, but
rather to display additional metadata depending on the underlying data...
--
Mark Rae
ASP.NET MVP
http://www.markrae.net