Thank you for writing.
Currently, only Menu Merge in MDI applications is supported and it is not supported to handle automatically the MDI child RadRibbonForm creation and create the desired contextual tabs in the parent RadRibbonForm. However, it is a reasonable request. I have logged it in our Feedback Portal. You can track its progress, subscribe for status changes and add your vote/comment to it on the following link - Feedback Item.
I have also updated your Telerik points.
You can manually achieve the merging, following the sample approach below:
sender, EventArgs e)
Form2 childForm =
ContextualTabGroup contextualTabGroup =
contextualTabGroup.Text = tab.Title;
"MDI Child "
I hope this information helps. Should you have further questions, I would be glad to help.
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