Asp.net C# InputBox only accepts numbers

Question

my question is simple, I need to know how to only allow integers to my InputBox in ASP.Net C#, without that tag thing , is there any other way ?

Thank you guys

This might be helpful https://stackoverflow.com/questions/9732455/how-to-allow-only-integers-in-a-textbox — Lifewithsun, Jun 06 '17 at 07:43

score 0 · Answer 1 · answered Jun 06 '17 at 07:46

0

The code is :

function numericFilter(txb) {
   txb.value = txb.value.replace(/[^\0-9]/ig, "");
}

call it in on key up

<input type="text" onKeyUp="numericFilter(this);" />

answered Jun 06 '17 at 07:46

Leandro Batista

57
1
8

score 0 · Answer 2 · answered Jun 06 '17 at 07:47

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" ControlToValidate="TextBox1" runat="server" ErrorMessage="Only Numbers allowed" ValidationExpression="\d+"></asp:RegularExpressionValidator>

score 0 · Answer 3 · answered Jun 06 '17 at 07:47

You can use a asp:CompareValidator. Like this:

<asp:TextBox ID="txtTotal" runat="server"></asp:TextBox>
<asp:CompareValidator ID="compTotal" 
    runat="server"
    ControlToValidate="txtTotal" 
    ErrorMessage="ValueNotNumeric" 
    Type="Integer" Operator="DataTypeCheck"></asp:CompareValidator>

Asp.net C# InputBox only accepts numbers

3 Answers3