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Zone: > NEWSGROUP > Asp.Net Forum > windows_hosting.hosting_open_forum Tags:
Item Type: NewsGroup Date Entered: 1/23/2005 1:51:31 PM Date Modified: Subscribers: 0 Subscribe Alert
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4 Items, 1 Pages 1 |< << Go >> >|
ceder
Asp.Net User
Create a new CheckBox Control1/23/2005 1:51:31 PM

0/0

Hello,

I have created a new CheckBox Control, that looks like this:
public class CheckBoxID : CheckBox
{
int m_PdfId;

public int PdfId
{
get
{
return m_PdfId;
}
set
{
m_PdfId = value;
}
}
}

I set the PdfId in the ItemDataBound for a repeater, using the following code:
void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
((CheckBoxID)e.Item.FindControl("CheckBoxVisable")).PdfId = ((Pdf)e.Item.DataItem).Id;
}
}

I use the CheckBox with autopostback=true. My OnCheckChanged function looks like this:
void CheckBoxVisable_OnCheckedChanged(object sender, EventArgs e)
{
Label1.Text = ((CheckBoxID)sender).PdfId.ToString();
}

--

For some reason the PdfId is 0 on the postback, why?

If I set it with <Test:CheckBoxId PdfId="66" /> It works fine. Any idea what I need to do for it to save the value?

Thanks
Lasse
ab13122k
Asp.Net User
Re: Create a new CheckBox Control1/24/2005 7:42:06 AM

0/0

I found this Note in MSDN.

Note The property defined in the example is not persisted during round trips to the client. To define properties that are persisted, you must use the ViewState property to hold property data, as described in Maintaining State in a Control.



you will also need to take above note in considration, because you also want to use stored PDFId in future events, which is similer to roundtrip.
ab13122k
Asp.Net User
Re: Create a new CheckBox Control1/24/2005 7:47:31 AM

0/0

Goto http://msdn.microsoft.com/library/default.asp

From left side tree navigate to below given page :-

..NET Development -> .NET Framework -> Building Applicatons ->
Creating ASP.NET Web Applications -> Developing ASP.NET Server Controls ->
Properties in ASP.NET Server Controls -> Defining a Property


At the end of the page you will find one NOTE on how to persiste property value.
AndrewSeven
Asp.Net User
Re: Create a new CheckBox Control1/26/2005 2:23:17 AM

0/0

public int PdfId
{
get
{
object val = ViewState["PdfId "];
if(val!=null)
{
return (int)val;
}
return 0;
}
set
{
ViewState["PdfId "] = value;
}
}
4 Items, 1 Pages 1 |< << Go >> >|


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.NET - Windows Forms 2.0 – CheckBox Control Recipes How Do I Create a ReadOnly CheckBox Without Disabling the Control ... cbRead = new CheckBox();. cbRead.CheckedChanged += new EventHandler(this. ...
KBAlertz.com: (306227) - Use this step-by-step guide to add a ... After the initial setup is completed, add a CheckBox control to the DataGrid, ... Create an instance of a CheckBox object. Dim oCheckBox As CheckBox = New ...
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Flex 3 - Creating and managing component instances at run time To create a component instance at run time, you define it, ... CheckBox; // Define a variable to hold the new CheckBox control. private var ...
Visual Basic Explorer - Tutorials - Create Controls At Runtime Once the Index property has been set to 0, the Checkbox is now a member of the Check1 Checkbox Control Array---which makes creating a new checkbox at ...
Creating a toggleable LinkButton control in Flex at Flex Examples CHANGE, toggleCheckBox_change); selectedCheckBox = new CheckBox(); selectedCheckBox. ... 6 Responses to “Creating a toggleable LinkButton control in Flex” ...

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