ToolTipService.ToolTip does not works on RadComboBox

[Frederic]

Hi,

This markup

<

telerikInput:RadComboBox Width="200" ToolTipService.ToolTip="test" >
</telerikInput:RadComboBox>

result in

"Unknow Attribut ToolTipService.ToolTip in element RadComboBox. [Line: 15 Position: 88]"
(Translated from french)

Thanks

 

[Boyan]

Hi Frederic,

The ToolTipService.ToolTip is an attached property. You have to add the assembly like this:
xmlns:ms="clr-namespace:System.Windows.Controls;assembly=System.Windows"

and then in your code use the ToolTipService like this:

<telerikInput:RadComboBox Width="200"  ms:ToolTipService.ToolTip="test" >
</telerikInput:RadComboBox>

This should help.

Sincerely yours,
Boyan
the Telerik team

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[Frederic]

Hi Boyan,

 

 

Thanks, it works now.

I did not think of that at first because I had a button with the tooltip service along side the radComBox.

I guest it works for the button because it is part a the System.Windows.Controls namespace too?
 

 

Thanks again

Fred 

 

 

[Boyan]

Hello Frederic,

Yes, exactly. I am glad that helped if you have further questions, feel free to ask.

Kind regards,
Boyan
the Telerik team

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[James]

Hi Boyan,

I am using RadComboBox and setting Tooltip from code at run time.
By, TooltipService.SetTooltip(radComboBox1, "Hello");

When i execute, RadComboBox doesnt have tooltip.
Instead it throws following exception in output window:

System.Windows.Data Error: Failed to connect to index '0' in object 'System.Collections.ObjectModel.ReadOnlyObservableCollection`1[System.Windows.Controls.ValidationError]' (type 'System.Collections.ObjectModel.ReadOnlyObservableCollection`1[System.Windows.Controls.ValidationError]'). BindingExpression: Path='(Validation.Errors)[0].ErrorContent' DataItem='Telerik.Windows.Controls.RadComboBox' (HashCode=31998529); target element is 'System.Windows.Controls.TextBlock' (Name=''); target property is 'Text' (type 'System.String').

I have tooltip on another control(Hyperlink), which works fine.

is it bug in RadComboBox?

Cheers,
James

[Konstantina]

Hi James,

Straight to your question.

Attached you will find a sample running project which contains RadComboBox and a HyperlinkButton each with tooltips. Please try it out and if you still experience problems you can send us a running project which we can test here locally.

If you have further questions please feel free to contact us again.

All the best,
Konstantina
the Telerik team

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[Hrushikesh]

What if there is no code behind? How to Bind it. Also can i show tooltip for the list items?

Thank you
Hrushikesh Patel

[Yana]

Hi Hrushikesh,

There should be no problem to bind the tooltip in the xaml like this:

<telerik:RadComboBox ToolTipService.ToolTip="{Binding ComboBoxToolTip}" ></telerik:RadComboBox>

You can find attached a simple example.

Greetings,
Yana
the Telerik team

[Arun]

Hi ,
When radCombo is disabled , tooltip service does't work. Any one had this problem ? . do you have any solution for this issue ?

[Yana]

Hello Arun,

Actually this is expected behavior - the tooltip is not supposed to be shown on disabled controls. The same can be observed with the Silverlight ComboBox as well.

Regards,
Yana
Telerik