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HiddenFieldDesigner.GetDesignTimeHtml Method

Gets the markup that is used to render the associated control at design time.

Namespace:  System.Web.UI.Design.WebControls
Assembly:  System.Design (in System.Design.dll)

public override string GetDesignTimeHtml()

Return Value

Type: System.String
A string containing the markup used to render the HiddenField at design time.

The GetDesignTimeHtml method generates the markup for a placeholder that includes the control class name and the ID property.

The following code example shows how to override the GetDesignTimeHtml method in a class that is inherited from the HiddenFieldDesigner class to change the appearance of the HiddenField control at design time. The GetDesignTimeHtml override generates a placeholder that includes the Value property in the placeholder, along with the control class name and the ID property.

// Generate the design-time markup. 
public override string GetDesignTimeHtml()
{
    // Get a reference to the control or a copy of the control.
    MyHiddenField myHF = (MyHiddenField)ViewControl;

    // Create a placeholder that displays the control value.
    string markup = CreatePlaceHolderDesignTimeHtml(
         "Value: \"" + myHF.Value.ToString() + "\"" );

    return markup;

} // GetDesignTimeHtml

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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