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validating text in box

Help i've just done a basic calculator with three textboxes a label & a button, basically when you add a number in textbox1 to the one in textbox2 it appears in textbox3 .........now the question asks to check if the user has typed in something appropriate . It says double click on txtnum1 use right hand list box to find Validating( ) event, then modify event stub so it looks like this
If Not IsNumeric(txtNum1.text) Then e.Cancel =True End if

Please where does the last data go to ? Where is the validating event. I've tried to put it in the text box but it doesnt work. Where is Validating on the right hand side. I can't see it anywhere..........All help gratefully recieved.

Help one of your people tried to help, they suggested pulling down the validating box & entering date. I pulled down in the second row as pointed out, but it says something about a boolean do you have to eraze this.?..what about the end sub do you have to change this for END IF or do you keep it.......
When I tried to compile it i got a run time error...............
Jan 18 '07 #1
1 1222
Killer42
8,435 Expert 8TB
Look up the online help from VB, and study how to insert code in an event procedure for a control. In this case, the Validating event.
Jan 19 '07 #2

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