how to make a text box where only upper letter character are allow

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Hello sir,
how to make a text box where
1. Only upper letter characters(A to Z) are allow.Others special characters/number/space are not allow.

2. in other text box only numbers (0 to 9)are allow, not special characters//space. & the number of digit is 10..

how i do this ..

Posted 5-Apr-13 23:42pm

prodipjsr

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Hemant Singh Rautela 6-Apr-13 5:58am

Filtered Text Box is good option or you can use javascript code for it...which check by keycode

Tiwari Avinash 6-Apr-13 7:07am

Are cyou creating a custom control? or you need validation for your text box. if you want to use validation u can use ajax regular expression validator or you can use Java Script.

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Santosh Gadge · Answer 1 · 2013-04-05T23:48:00

Solution 1

use ajax filter textbox extender

http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/FilteredTextBox/FilteredTextBox.aspx[^]

Posted 5-Apr-13 23:48pm

Santosh Gadge

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prodipjsr 6-Apr-13 6:00am

Thank you Santosh,
where i write this code. can u give a example.please help me!!

Santosh Gadge · Answer 2 · 2013-04-07T17:30:00

XML

// i had textbox to enter isbn number which include neumerics and '-' character
// so i used filter text box extender

<asp:TextBox ID="txtISBN" runat="server" CssClass="textbox" Width="200px" MaxLength="15">
</asp:TextBox>
<asp:FilteredTextBoxExtender ID="txtISBN_FilteredTextBoxExtender"
        runat="server" Enabled="True" TargetControlID="txtISBN" ValidChars="0123456789-">
</asp:FilteredTextBoxExtender>


// if you dont have ajax toolkit then
// check this link where people did with jquery
// http://stackoverflow.com/questions/995183/how-to-allow-only-numeric-0-9-in-html-inputbox-using-jquery

// http://www.thimbleopensource.com/tutorials-snippets/jquery-plugin-filter-text-input[^]