How to restrict user to enter specific amount of data

[Sher]

Hi,
I want to restrict the user to enter maximum of 4 alphabets in subjects field, and i also want to control the display size of the subject field.
Can u please guide me how to perform these activities. Your quick response will be greatly appreciated.

Thanks & Regards,
Sher

[Shinu]

Hello Sher,

You can try accessing the subjectTextBox in the FormCreated event like this.
C#:

protected void RadScheduler1_FormCreated(object sender, SchedulerFormCreatedEventArgs e)
   {
       TextBox subject = e.Container.FindControl("SubjectTextBox") as TextBox;
       subject.Attributes.Add("onkeypress", "OnKeyPress");//attatching keypress evnet
   }

Clientside:

function OnKeyPress()
    {
   //your code here
   }

Thanks,
Shinu.

[Sher]

Hi,

Thanks for the reply, i really appreciate that but it is not working for me, it is throwing an exception, i am posting the snapshot od the excaption as an attachment.

Thanks and Regards,
Sher

[Veronica]

Hello Sher,

As an another solution you can find the Subject RadTextBox in the Advanced Form and set the MaxLength property to "4". That way you are not allowed to enter more than 4 characters in the subject textbox:

protected void RadScheduler1_FormCreated(object sender, SchedulerFormCreatedEventArgs e)
   {
       if ((e.Container.Mode == SchedulerFormMode.AdvancedEdit)||(e.Container.Mode == SchedulerFormMode.AdvancedInsert))
       {
           RadTextBox subject = e.Container.FindControl("Subject") as RadTextBox;
           subject.MaxLength = 4;
       }
   }

Greetings,
Veronica Milcheva
the Telerik team

[Sher]

Thanks very much veronica, it was really helpful,

Thanks and regards,
Sher