EditableContentControl

The EditableContentControl control is a standard ContentControl, which also features an alternate editing mode that can be toggled to display a TextBox for editing a string.

When entering edit mode, the Content property value is copied to the EditableContent property, and the UI switches to a TextBox for editing the editable content. Note that an alternate template could be provided for the control to support an editor other than a TextBox.

After the TextBox is displayed, the SelectText method is called, which selects all text by default. This method is passed the TextBox and can be overridden to select nothing or a certain range of text. An example usage scenario is when editing a filename and you only wish to update the name portion without the extension being selected.

While in editing mode, pressing Enter or moving focus out of the control will commit the value. This has the effect of copying the EditableContent property value back over to Content, which is done in the SetContentAfterEditing method. That method passes in the edited content and by default sets that value to the Content. The method can be overridden to coerce the edited content, or can choose to not set Content, which has the effect of canceling the edit. The IsEditing can even be set back to true if you wish for focus to remain in the TextBox, such as when there's an invalid value.

If Esc is pressed while editing, the value is not committed.

The EditableContentControl class has these important members: