Hi I have a problem when adding the radChat1 tool

[Haider]

Hi I have a problem when adding the radChat1 tool

 

Pressing the Send Message button shows this 
An unhandled exception of type 'System.ArgumentNullException' occurred in Telerik.WinControls.UI.dll

Additional information: The Author property has to be set to a valid instance when AutoAddUserMessages is set to true.

[Dimitar]

Hello Haider,

You need to assign a valid Author. Here is an example:

radChat1.Author = new Telerik.WinControls.UI.Author(image1, "Author1");

I hope this will be useful. Let me know if you have additional questions.

Regards,
Dimitar
Progress TelerikRadChat for Winforms

[Haider]

Hello 

https://e.top4top.net/p_1004i8tka1.gif

[Dimitar]

Hi Haider,

This is marked as answered. Do you still have issues with this?

I am looking forward to your reply.

 

Regards,
Dimitar
Progress TelerikRadChat for Winforms

[Haider]

Thank you, the issue has been resolved
I have another question how to change icon the button of toolbar

[Dimitar]

Hi Haider,

The following snippet shows how you ca n set the image (by default the button shows text):

radChat1.ChatElement.ShowToolbarButtonElement.Text = "";
radChat1.ChatElement.ShowToolbarButtonElement.Image = Image.FromFile(@"C:\img\delete.png");

Do not hesitate to contact us if you have other questions.

 

Regards,
Dimitar
Progress TelerikRadChat for Winforms