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LoadPostData Method
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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: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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