ControlDesigner.GetEditableDesignerRegionContent Method

Reference

Definition

Namespace:: System.Web.UI.Design

Assembly:: System.Design.dll

Important

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Returns the content for an editable region of the design-time view of the associated control.

public:
 virtual System::String ^ GetEditableDesignerRegionContent(System::Web::UI::Design::EditableDesignerRegion ^ region);

public virtual string GetEditableDesignerRegionContent(System.Web.UI.Design.EditableDesignerRegion region);

abstract member GetEditableDesignerRegionContent : System.Web.UI.Design.EditableDesignerRegion -> string
override this.GetEditableDesignerRegionContent : System.Web.UI.Design.EditableDesignerRegion -> string

Public Overridable Function GetEditableDesignerRegionContent (region As EditableDesignerRegion) As String

Parameters

region: EditableDesignerRegion

The EditableDesignerRegion object to get content for.

Returns

String

The persisted content for the region, if the control designer supports editable regions; otherwise, an empty string ("").

Examples

The following code example shows how to get a reference to the design host, and then use the reference to create a ControlParser object that creates the HTML markup for region and its contents.

// Get the content string for the selected region. Called by the designer host?
public override string GetEditableDesignerRegionContent(EditableDesignerRegion region) 
{
    // Get a reference to the designer host
    IDesignerHost host = (IDesignerHost)Component.Site.GetService(typeof(IDesignerHost));
    if (host != null)
    {
        ITemplate template = myControl.View1;
        if (region.Name == "Content1")
            template = myControl.View2;

        // Persist the template in the design host
        if (template != null)
            return ControlPersister.PersistTemplate(template, host);
    }

    return String.Empty;
}

' Get the content string for the selected region. Called by the designer host?
Public Overrides Function GetEditableDesignerRegionContent(ByVal region As EditableDesignerRegion) As String
    ' Get a reference to the designer host
    Dim host As IDesignerHost = CType(Component.Site.GetService(GetType(IDesignerHost)), IDesignerHost)

    If Not IsNothing(host) Then
        Dim template As ITemplate = myControl.View1
        If region.Name = "Content1" Then
            template = myControl.View2
        End If

        ' Persist the template in the design host
        If Not IsNothing(template) Then
            Return ControlPersister.PersistTemplate(template, host)
        End If
    End If

    Return String.Empty
End Function

Remarks

The default implementation of the GetEditableDesignerRegionContent method returns an empty string ("").

Classes deriving from the ControlDesigner class can support region-based editing on the design surface and override the GetEditableDesignerRegionContent method to return the content for a specified region.

Applies to

Product	Versions
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

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