MDI Application ...........

[balaji muthaiah]

Form activeForm = this.ActiveMdiChild as Form; string title = activeForm.Text; MessageBox.Show(title); when i'm use this code the following is displayed "Object reference not set to an instance of an object." that point out the first line............please any one can help me.......

[DRAYKKO777]

Sounds like you have a null value somewhere. Can you post the section of code that's giving you trouble?

[Lost User]

If you step through this code in your debugger you will be able to see if there is a valid ActiveMdiChild to set into the variable.

Veni, vidi, abiit domum

[smithjdst]

based on what I see it must be that you activeForm has not be initialized and is null. Without more code can't be certain.