Hide recordId in DataGrid

[szabelin]

Hi, I was wondering if there is a way to have a
BoundColumn in DataGrid, but not display it? Basically I
would like to have a primary key hidden (and I need this
for edits and deletes).

I know I could store DataSet in the viewstate or session,
but I was just curios if DataGrid offers something (kind
of like Stringray's grid allowing you to associate a row
with data in a void* )

Thanks

[Frank Oquendo]

szabelin wrote:

Hi, I was wondering if there is a way to have a
BoundColumn in DataGrid, but not display it?

<asp:BoundColum n Visible="False" ...>

--
There are 10 kinds of people. Those who understand binary and those who
don't.

http://code.acadx.com

[szabelin]

That was the first thing I tried. I didn't work, text
values are "", maybe this has to do with the fact that asp
does not generate code for invisible controls. Have you
tried it?

-----Original Message-----
szabelin wrote:

Hi, I was wondering if there is a way to have a
BoundColumn in DataGrid, but not display it?
<asp:BoundColu mn Visible="False" ...>

--
There are 10 kinds of people. Those who understand binary

and those whodon't.

http://code.acadx.com
.

[Frank Oquendo]

szabelin wrote:

That was the first thing I tried. I didn't work, text
values are "", maybe this has to do with the fact that asp
does not generate code for invisible controls. Have you
tried it?

Yes. Assuming the column in question is the first column in the grid,
the following text returns the primary key value for a given record:

string id = DataGrid1.Items[x].Cells[0].Text;

--
There are 10 kinds of people. Those who understand binary and those who
don't.

http://code.acadx.com

[szabelin]

Hm.. you must be doing something else because both str1
and str2 are empty (see code below). I am wondering if
there is an object type per row property built-into the
DataGrid, so developers don't have to "cheat" creating a
hidden column...
private void OnGridUpdate(ob ject source,
System.Web.UI.W ebControls.Data GridCommandEven tArgs e)
{
string str1 = this.grid.Items
[e.Item.ItemInde x].Cells[0].Text;
string str2 = e.Item.Cells[0].Text;

.....

}

-----Original Message-----
szabelin wrote:

That was the first thing I tried. I didn't work, text
values are "", maybe this has to do with the fact that asp does not generate code for invisible controls. Have you
tried it?
Yes. Assuming the column in question is the first column

in the grid,the following text returns the primary key value for a given record:
string id = DataGrid1.Items[x].Cells[0].Text;

--
There are 10 kinds of people. Those who understand binary and those whodon't.

http://code.acadx.com
.

[Jerry III]

Invisible controls are not rendered, that's correct. Can't you use hidden
fields for the record ids?

Jerry

"szabelin" <szabelin@szabe lin> wrote in message
news:04******** *************** *****@phx.gbl.. .

That was the first thing I tried. I didn't work, text
values are "", maybe this has to do with the fact that asp
does not generate code for invisible controls. Have you
tried it?

-----Original Message-----
szabelin wrote:

Hi, I was wondering if there is a way to have a
BoundColumn in DataGrid, but not display it?

<asp:BoundColu mn Visible="False" ...>

--
There are 10 kinds of people. Those who understand binary

and those who

don't.

http://code.acadx.com
.

[S. Justin Gengo]

szabelin,

I'm using a hidden field for my item ids in a datagrid and it's working
fine.

Here's the column from the datagrid:

<asp:boundcolum n visible="False" datafield="pk_E ntryId"></asp:boundcolumn >

and here's how I get the value:

Dim EntryId As Int32 = CType(DataGrid1 .SelectedItem.C ells(0).Text, Int32)

So you can get it to work.

Sincerely,
--
S. Justin Gengo, MCP
Web Developer

Free code library at:
www.aboutfortunate.com

"Out of chaos comes order."
Nietzche
"szabelin" <szabelin@szabe lin> wrote in message
news:05******** *************** *****@phx.gbl.. .

Hm.. you must be doing something else because both str1
and str2 are empty (see code below). I am wondering if
there is an object type per row property built-into the
DataGrid, so developers don't have to "cheat" creating a
hidden column...
private void OnGridUpdate(ob ject source,
System.Web.UI.W ebControls.Data GridCommandEven tArgs e)
{
string str1 = this.grid.Items
[e.Item.ItemInde x].Cells[0].Text;
string str2 = e.Item.Cells[0].Text;

....

}

-----Original Message-----
szabelin wrote:

That was the first thing I tried. I didn't work, text
values are "", maybe this has to do with the fact that asp does not generate code for invisible controls. Have you
tried it?

Yes. Assuming the column in question is the first column

in the grid,

the following text returns the primary key value for a

given record:

string id = DataGrid1.Items[x].Cells[0].Text;

--
There are 10 kinds of people. Those who understand binary

and those who

don't.

http://code.acadx.com
.