Last Updated: 29 Mar 2019 13:39 by ADMIN
Created on: 03 Nov 2017 08:34
Category: UI for WinForms
Type: Bug Report
FIX. RadColorDialog - initially selected color is not properly displayed in the preview control
How to reproduce: check the attached video
Workaround: select a color from a different tab or use the color picker
Dess | Tech Support Engineer, Principal
Posted on: 29 Mar 2019 13:39
Hello, Clifton,  

Please allow me to explain how we prioritize the issues that our users report. We are taking into consideration the following key points:
Is the reported issue a show-stopper;
Does the reported issue have a work-around;
What is the severity and nature of the issue (for example – memory leak issue, performance issue, functionality issue, styling issue);
How many users have reported the issue / How many users have voted for a feedback item.

Since there is a workaround for the issue that you experience and there are other issues which require more urgent fixes, your issue is still not addressed. Make sure that you cast your vote for it. If more customers vote for it, we will increase its priority.

As to the question about hiding the Professional  tab, you can refer to the following approach: 

public RadForm1()
    this.radGridView1.ConditionalFormattingFormShown += radGridView1_ConditionalFormattingFormShown;
private void radGridView1_ConditionalFormattingFormShown(object sender, EventArgs e)
    ConditionalFormattingForm form = sender as ConditionalFormattingForm;
    if (form != null)
        RadPropertyGrid propertyGrid = form.Controls["radPropertyGridProperties"] as RadPropertyGrid;
        propertyGrid.EditorInitialized -= propertyGrid_EditorInitialized;
        propertyGrid.EditorInitialized += propertyGrid_EditorInitialized;
private void propertyGrid_EditorInitialized(object sender, PropertyGridItemEditorInitializedEventArgs e)
    PropertyGridColorEditor colorEditor = e.Editor as PropertyGridColorEditor;
    if (colorEditor != null)
        RadColorBoxElement element = colorEditor.EditorElement as RadColorBoxElement;
        RadColorDialogForm colorForm = element.ColorDialog.ColorDialogForm as RadColorDialogForm;
        RadColorSelector selector = colorForm.RadColorSelector as RadColorSelector;
        selector.ShowProfessionalColors = false;

Dess | Tech Support Engineer, Sr.
Progress Telerik
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Posted on: 29 Mar 2019 12:25

Hi - Are there plans to fix this issue? Is it possible to remove the professional color tab such that users aren't picking from unavailable options?