Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

IPostBackDataHandler.LoadPostData Method

When implemented by a class, processes postback data for an ASP.NET server control.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)
bool LoadPostData(
	string postDataKey,
	NameValueCollection postCollection
)

Parameters

postDataKey
Type: System.String
The key identifier for the control.
postCollection
Type: System.Collections.Specialized.NameValueCollection
The collection of all incoming name values.

Return Value

Type: System.Boolean
true if the server control's state changes as a result of the postback; otherwise, false.

The ASP.NET page framework tracks all the server controls that return true to this method call, and then invokes the RaisePostDataChangedEvent method on those controls.

The following code example demonstrates a server control that implements a version of the LoadPostData method.


public virtual bool LoadPostData(string postDataKey,
   NameValueCollection postCollection) {

   String presentValue = Text;
   String postedValue = postCollection[postDataKey];

   if (presentValue == null || !presentValue.Equals(postedValue)){
      Text = postedValue;
      return true;
   }
   return false;
}
  


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.