Nothing in documentation or here in the forums on how RadToolTip is used...
Should be as simple as this:
xmlns:t="http://schemas.telerik.com/2008/xaml/presentation"
<t:RadToolTip>
<TextBlock>
Some text.
</TextBlock>
</t:RadToolTip>
or this:
<t:RadToolTip>
<t:RadToolTip.Content>
<TextBlock>
Some text.
</TextBlock>
</t:RadToolTip.Content>
</t:RadToolTip>
But all that is displayed in the UI is "System.Windows.Controls.Textbox".
Should be as simple as this:
xmlns:t="http://schemas.telerik.com/2008/xaml/presentation"
<t:RadToolTip>
<TextBlock>
Some text.
</TextBlock>
</t:RadToolTip>
or this:
<t:RadToolTip>
<t:RadToolTip.Content>
<TextBlock>
Some text.
</TextBlock>
</t:RadToolTip.Content>
</t:RadToolTip>
But all that is displayed in the UI is "System.Windows.Controls.Textbox".