Accessing a Control inside a Repeater from a code behind file

**Martin Dechev** · Nov 18 '05, 05:50 AM

Re: Accessing a Control inside a Repeater from a code behind file

Hi, Ric,

The following article explains how it is done:

Microsoft Learn: Build with answers in reach

http://msdn.microsoft.com/library/en-us/vbcon/html/vbtskreferencingcontrolsinwebformspages.asp

Find official documentation, practical know-how, and expert guidance for builders working and troubleshooting in Microsoft products.

Hope this helps
Martin
"Ric" <djscratchnsnif fing@yahoo.com> wrote in message
news:781ddcc1.0 402271006.6364f ae8@posting.goo gle.com...[color=blue]
> im new to asp.net. please help if u can.
> is it possible to refer to a control(ie lable, placeholder, textbox)
> that is inside a repeater object from a code behind file? when i place
> the control object outside of the repeater, i can refer to it from the
> code behind file. when i place the control object inside the repeater,
> i get a 'need to instanciate the control object' error. if i declare
> the control object inside the control behind file, the error goes
> away, but i cant refer to the control objects components. please help.[/color]

**ric carrasquilla** · Nov 18 '05, 05:50 AM

Re: Accessing a Control inside a Repeater from a code behind file

thx martin. i really appreciate the help. i'll bookmark this site.

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**Ric** · Nov 18 '05, 05:54 AM

Re: Accessing a Control inside a Repeater from a code behind file

thx again for the help martin. i was able to use your suggestion to
get to the control within the repeater. also, i was able to understand
a bit more bout objects, events and arguments. but, im sure i have a
lot to more to learn.

if u or someone else can help me with another question, please do.

i have a repeater pulling job information from a database. each
repeater itemtemplate has with a linkbutton and a row with a label
(for now).

<asp:repeater ID="EmployeeInf o" OnItemCommand=" getActivityList "
runat="server">

<itemtemplate >
<tr bgcolor="#CCCCC C">
<td><%# Container.DataI tem(0)%></td>
<td><%# Container.DataI tem(1)%></td>
<td><%# Container.DataI tem(2)%></td>
<td><%# Container.DataI tem(3)%></td>
<td><%# Container.DataI tem(4)%></td>
<td><asp:linkbu tton Text=<%# Container.DataI tem(5)%>
runat="server"/></td>
</tr>
<tr>
<td><asp:labe l id="litLabel" Runat="Server" Text="labelti"
Visible="false"/></td>
</tr>
</itemtemplate>

when u click on the linkbutton, the label(eventuall y it will be a
placeholder with more database info in another repeater) will become
visible with detailed info bout the job.

the first Container.DataI tem(0) has an ID number that I need to
extract and send to the stored procedure. how can i extract that
dataItem. ive been able to loop throw the items in the repeater item
and extract the entire row. i tried to convert that info to a
DataBoundLitera lControl and pull the text from it. but when i tried to
use string functions to pull the ID number or even get a length of
string i could not consistently get what i needed. i figured out that
row is coded with <html> table and row tags. thus, im back to trying
to get the data from the first container.datai tem. so, to make a long
request even longer, what object or class do i use to pull individual
dataitems from an item. i looked at the dataitem property from
repeateritem class, but i cant get it to work. again, thx for the
help.

**Martin Dechev** · Nov 18 '05, 05:55 AM

Re: Accessing a Control inside a Repeater from a code behind file

Hi, Ric,

You can pass this value in the CommandName or CommandArgument property:
[color=blue]
> <asp:repeater ID="EmployeeInf o" OnItemCommand=" getActivityList "
> runat="server">
>
> <itemtemplate >
> <tr bgcolor="#CCCCC C">
> <td><%# Container.DataI tem(0)%></td>
> <td><%# Container.DataI tem(1)%></td>
> <td><%# Container.DataI tem(2)%></td>
> <td><%# Container.DataI tem(3)%></td>
> <td><%# Container.DataI tem(4)%></td>
> <td><asp:linkbu tton Text='<%# Container.DataI tem(5)%>'[/color]

CommandName="Sh owDetails"
CommandArgument ='<%# Container.DataI tem(0)%>'
[color=blue]
> runat="server"/></td>
> </tr>
> <tr>
> <td><asp:labe l id="litLabel" Runat="Server" Text="labelti"
> Visible="false"/></td>
> </tr>
> </itemtemplate>[/color]

If the ID is an integer you will have to parse it:

[C#]
protected void getActivityList (object s, RepeaterCommand EventArgs e)
{
if(e.CommandNam e == "ShowDetail s")
{
int ID = int.Parse(e.Com mandArgument);
//....
}
}

[VB.NET]
Protected Sub getActivityList (s As Object, e As RepeaterCommand EventArgs)
If e.CommandName = "ShowDetail s" Then
Dim ID As Int32 = Int32.Parse(e.C ommandArgument)
'....
End If
End Sub

Hope this helps
Martin

**ric carrasquilla** · Nov 18 '05, 05:55 AM

Re: Accessing a Control inside a Repeater from a code behind file

thx again for the help martin. just curiously, if u had to send more
than one command arguement how would u do that? i used a commandName and
commandArgument and wondered what would u do to send two
commandArgument s with one commandName or two commandNames each with a
commandArgument .

thx again for the push in the right direction.

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**Martin Dechev** · Nov 18 '05, 05:56 AM

Re: Accessing a Control inside a Repeater from a code behind file

Hi, ric carrasquilla,

<snip>
[color=blue]
> just curiously, if u had to send more
> than one command arguement how would u do that?[/color]

You normally don't need to do that. The common design is to identify your
objects with a single identifier. It is possible to pass 2 parameters
anyway - one for the action and another for the object identifier. This is
how it was designed, this is how it works and I believe it is enough for any
case.

Greetings
Martin

**ric carrasquilla** · Nov 18 '05, 05:56 AM

Re: Accessing a Control inside a Repeater from a code behind file

thx again martin. i really appreciate the time and thoroughness of your
answers. have a good day.

ric

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**Monika Mesik** · Nov 18 '05, 06:13 AM

Re: Accessing a Control inside a Repeater from a code behind file

I'd like to know which site helped to answer the question. I have a similar
issue. Can you provide the link?

TIA

"ric carrasquilla" <djscratchnsnif fing@yahoo.com> wrote in message
news:OwDRKdX$DH A.1796@TK2MSFTN GP12.phx.gbl...[color=blue]
>
>
> thx martin. i really appreciate the help. i'll bookmark this site.
>
> *** Sent via Developersdex http://www.developersdex.com ***
> Don't just participate in USENET...get rewarded for it![/color]

**ric carrasquilla** · Nov 18 '05, 06:14 AM

Re: Accessing a Control inside a Repeater from a code behind file

this is the link to how to find an object inside a repeater

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/h

tml/vbtskreferencin gcontrolsinwebf ormspages.asp

i hope this helps. also, if u look at the thread, martin explains how
to send a commandname and command argument to the repeatercommand event

please reply to this thread for more help.

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Accessing a Control inside a Repeater from a code behind file

Accessing a Control inside a Repeater from a code behind file

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