ASP.NET

HI Find control inside control RSS

5 replies

Last post Jun 21, 2012 12:34 PM by Mohammad Ali keerio

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Nika2008

0 Points

2 Posts

HI Find control inside control

Jun 16, 2012 03:00 PM|LINK

hi i need help

i need to get a control from with using method FindControl(id);
but in my control is in HTML and it have 2-ID because he is custom controll

this is how i create the control

protected override void Render(HtmlTextWriter writer)
      {
   for(int i = 0 ; i < 3; i++)
{
                writer.AddAttribute(HtmlTextWriterAttribute.Type, "checkbox");
                writer.AddAttribute(HtmlTextWriterAttribute.Id , "ch"+i.ToString());
                this.AddAttributesToRender(writer);
                writer.RenderBeginTag(HtmlTextWriterTag.Input);
                writer.RenderEndTag();
}}

and this is how i call the control in my asp.net page

<CC:ServerControl1 ID="ServerControl"  runat="server" />

this is how it looks in pagesoure

<input type="checkbox" id="ch0" id="ServerControl" />
<input type="checkbox" id="ch1" id="ServerControl" />
<input type="checkbox" id="ch2" id="ServerControl" />

this is how i use the Method

FineControl(id)

for (int i = 0; i < 3; i++)
        {
 
            CheckBox cb = this.FindControl("ch"+i.ToString()) as CheckBox;
            if (cb != null)
            {
                if (cb.Checked == true)
                {
                    ss[pom] = i;
                    pom++;
                }
            }
}

and all time the finecontrol give me null never dont give me that what i need?
can some one give me any sugestion how to do it???
thnx for help and sorry for my bad english!

- Reply
Shuvo Aymon

Contributor

4820 Points

1167 Posts

Re: HI Find control inside control

Jun 16, 2012 03:20 PM|LINK

Please check is your control added at page level or they are added within other controls. You may share your aspx and aspx.cs page for better understanding for us.

Shuvo

If more posts give you useful answers, Please mark each post as "Answer".
- Reply
Nika2008

0 Points

2 Posts

Re: HI Find control inside control

Jun 16, 2012 03:29 PM|LINK

<%@ Register Assembly="Controlls" Namespace="Controlls" TagPrefix="CC" %> do u mean for this???

i search in googel for this problem but the Findcontrol() methdon work only for servercontrols and i am not sure if checkbox is in runat="server" if not can u tell me how to add runat="server" in custum control
- Reply
Shuvo Aymon

Contributor

4820 Points

1167 Posts

Re: HI Find control inside control

Jun 16, 2012 05:45 PM|LINK
no. I have asked for the complete code of aspx and code behind page.

Shuvo

If more posts give you useful answers, Please mark each post as "Answer".
- Reply
Catherine Sh...

All-Star

23373 Points

2490 Posts

Microsoft

Re: HI Find control inside control

Jun 21, 2012 10:26 AM|LINK

Hi,

You are correct.

If you want to use the method Findcontrol to find the control in the code behind, you need to make sure that checkbox is in the runat="server".

In order to resolve your issue, could you share the complete code here or upload the project to skydrive? Then provide a link. I want to test it locally.

Best wishes,

Please mark the replies as answers if they help or unmark if not.
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- Reply
Mohammad Ali...

Member

322 Points

64 Posts
Re: HI Find control inside control

Jun 21, 2012 12:34 PM|LINK
Hi,

Dear try this one

//If you have use the master page then try this here MainContent is ContentPalceHolder's ID
```
CheckBox =Master.FindControl("MainContent").FindControl("ch" + i) as CheckBox; 
```
// IF you have use simple asp.net webform then try this
```
CheckBox  = Page.FindControl("ch" + i) as CheckBox;
```
```
Hope this post will helps you
```
Please "Mark as Answer" if this post helps.
- Edited by Mohammad Ali keerio on Jun 21, 2012 12:39 PM
- Marked as answer by Young Yang - MSFT on Jun 30, 2012 02:30 PM