Modify RadRichTextEditor Content Control Text Programically

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RichTextEditor
Ali
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Ali asked on 06 Sep 2021, 02:32 PM

Hello

I want to be able to modify the text content of the control programmically at runtime. Below is the code I have tried :

 Placeholder does not change the content
 Dim content_controls As IEnumerable(Of SdtRangeStart) =
        Me.radRichTextEditor1.Document.GetAnnotationMarkersOfType(Of SdtRangeStart)()
        For Each item In content_controls
            'MsgBox("Type: {0} ID:{1}", item.SdtProperties.Type, item.SdtProperties.ID)
            'MsgBox("Type: {0} ID:{1}", item.SdtProperties.Type, item.SdtProperties.ID)

            If item.SdtProperties.Type = SdtType.Text Then

                Dim properties As TextProperties = TryCast(item.SdtProperties, TextProperties)
                If properties.Tag IsNot Nothing AndAlso properties.Tag.ToUpper = "SERIALNO" Then
                    properties.Placeholder.PlaceholderText = "DWF324434244242"
                    properties.Placeholder.ShowPlaceholder = True
                End If
            End If
        Next
Thank You

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Dimitar
Telerik team
answered on 07 Sep 2021, 08:42 AM

Hello Ali,

If the content controls already have contend the place holder text would not be displayed. You can change the actual content with the following approach (you need to update the layout as well): 

Dim content_controls As IEnumerable(Of SdtRangeStart) = radRichTextEditor1.Document.GetAnnotationMarkersOfType(Of SdtRangeStart)().ToList()
For Each item In content_controls
	If item.SdtProperties.Type = SdtType.Text Then
		Dim span As Span = TryCast(item.NextSibling, Span)
		If span IsNot Nothing Then
			span.Text = "DWF324434244242"
		End If
	End If
Next item

radRichTextEditor1.UpdateEditorLayout()


Let me know if I can assist you further.

Regards,

Regards,
Dimitar
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Ali
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commented on 07 Sep 2021, 11:40 AM

Thank You.

Its working perfectly.

Ali
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commented on 09 Sep 2021, 11:51 AM

Hello

I want to be able to bind the span or control to a datasource, kindly assist me with the below code or other alternative;


  span.BindProperty(propertyToBind, bindingSource_renamed.Current, sourceProperty, PropertyBindingOptions.TwoWay)

 

Thank You

Dimitar
Telerik team
commented on 13 Sep 2021, 12:15 PM

Hi Ali

This is not supported and is not recommended (elements instances can be cloned or recreated at some point). Could share more information about your scenario? Perhaps I can suggest an alternative solution. 

I am looking forward to your reply.

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Ali
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Answers by
Dimitar
Telerik team
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