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| Yannick Smits |
Inside the DataGrid's update command I can't seem to find (FindControl) the
dynamically created textboxes inside the edititemtemplate.
This is (simplified) what I do:
void dg_ItemDataBound(object sender,
System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.EditItem)
{
TextBox dynamicTbx = new TextBox();
dynamicTbx.ID = "testTbx";
e.Item.Cells[2].Controls.Add(dynamicTbx);
}
}
public void dg_Update(Object sender, DataGridCommandEventArgs e)
{
// both methods don't work ("Object reference not set to an instance of an
object. ")
string test1 = ((TextBox)e.Item.Cells[2].FindControl("testTbx")).Text;
string test2 = ((TextBox)e.Item.FindControl("testTbx")).Text;
}
Am I missing something obvious?
Thanks!
Yannick Smits
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| Marcie Jones (VIP) |
Just curious Yannick, why are you creating the edit
textboxes dynamically? Doesn't it automatically build
textboxes when you go into edit mode?
And to answer, I believe that dynamically added
controls are lost on each postback, so you'd have to
re-add them before it gets to your Update event.
Datagrid Girl
--- Yannick Smits <Click here to reveal e-mail address> wrote:
[Original message clipped]
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| Yannick Smits |
[Original message clipped]
I'm adding textboxes dyanamically because I do not know how the datagrid
looks like as I'm building a universal SQL Server table editor. Next I do
not only use textboxes but also dropdownlists, dateselectors etc.
[Original message clipped]
Aaargh, that is a strange behaviour! Should I recreate the controls inside
the update eventhandler to retrieve the values??
> Datagrid Girl
Databound Boy
[Original message clipped]
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| Nick North |
I think you have to go back to the old ASP system of accessing the =
controls through Request.Form. I have a similar system that dynamically =
adds dropdown lists and textboxes, and found this article to be very =
helpful: http://www.tripleasp.net/article.aspx?NavID=3D27.
Nick
-----Original Message-----
From: Yannick Smits [mailto:Click here to reveal e-mail address]=20
Sent: 13 August 2002 12:26
To: aspngDataGridRepeaterDatalist
Subject: [aspngdatagridrepeaterdatalist] Re: findcontrol in dynamically =
created edititemtemplate
[Original message clipped]
I'm adding textboxes dyanamically because I do not know how the datagrid
looks like as I'm building a universal SQL Server table editor. Next I =
do
not only use textboxes but also dropdownlists, dateselectors etc.
[Original message clipped]
Aaargh, that is a strange behaviour! Should I recreate the controls =
inside
the update eventhandler to retrieve the values??
> Datagrid Girl
Databound Boy
[Original message clipped]
| [aspngdatagridrepeaterdatalist] member Click here to reveal e-mail address =3D YOUR ID
| http://www.aspfriends.com/aspfriends/aspngdatagridrepeaterdatalist.asp =
=3D JOIN/QUIT
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| Yannick Smits |
Haha, mine is better :)
- foreign key to dropdownlist support
- date selector
- Fieldvalidators (integers)
- checkbox for bit fields
- vertical editing
--
Yannick Smits
"Alex Lowe" <Click here to reveal e-mail address> wrote in message
news:697066@aspngdatagridrepeaterdatalist...
[Original message clipped]
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| Yannick Smits |
Thanks, Nick. That was exactly what I was looking for.
Yannick Smits
"Nick North" <Click here to reveal e-mail address> wrote in message
news:697063@aspngdatagridrepeaterdatalist...
I think you have to go back to the old ASP system of accessing the controls
through Request.Form. I have a similar system that dynamically adds dropdown
lists and textboxes, and found this article to be very helpful:
http://www.tripleasp.net/article.aspx?NavID=27.
Nick
-----Original Message-----
From: Yannick Smits [mailto:Click here to reveal e-mail address]
Sent: 13 August 2002 12:26
To: aspngDataGridRepeaterDatalist
Subject: [aspngdatagridrepeaterdatalist] Re: findcontrol in dynamically
created edititemtemplate
[Original message clipped]
I'm adding textboxes dyanamically because I do not know how the datagrid
looks like as I'm building a universal SQL Server table editor. Next I do
not only use textboxes but also dropdownlists, dateselectors etc.
[Original message clipped]
Aaargh, that is a strange behaviour! Should I recreate the controls inside
the update eventhandler to retrieve the values??
> Datagrid Girl
Databound Boy
[Original message clipped]
| [aspngdatagridrepeaterdatalist] member Click here to reveal e-mail address = YOUR ID
| http://www.aspfriends.com/aspfriends/aspngdatagridrepeaterdatalist.asp =
JOIN/QUIT
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