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Subject:
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Validation
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Posted By:
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Sheikha
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Post Date:
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9/14/2004 12:42:11 AM
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Hi:
i want to set validation in text boxes in VB.NET. For example, i have a text box that can take a maximum of 3 digits. before you insert a record by clicking on a button, it validates all text boxes. how do i do that?
code that i wrote:
If (Not IsNumeric(txtSubAreaNo.Text)) Then
lblComment.Text = "Please enter a numeric SubArea Number"
this text box should only allow 3 digits maximum to be entered.
Thanks in advance
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Reply By:
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netsjp
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Reply Date:
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9/14/2004 1:06:27 AM
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for each ctl in me.controls
if ctl.gettype="TextBox" ctl.MaxLenth=3
next
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Reply By:
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Ramakrishna.G
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Reply Date:
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9/14/2004 3:57:18 AM
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you try to use regular expressions, i think this is the beter way.
steps.
1. frist drag the regular expression validatior,
2. go to properties window and set the controle to validate to your text box
3. write regular expression at validation expression in properties window
for maximum of three digits the expression is: ^\d{1,3}$
any number that is 1 to 3 digits in length.eg:matches 1, 15, or 987.
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Reply By:
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stu9820
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Reply Date:
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9/14/2004 7:23:54 AM
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You can use a range validator. They are designed for that.
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Reply By:
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pradeep_itguy
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Reply Date:
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10/8/2004 4:05:08 AM
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Go to the following page for more information about the validator control creation
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnadvnet/html/vbnet04082003.asp?frame=true
It is not how much we do,
but how much love we put in the doing.
-Mother Theresa
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