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validation for textbox allow only numbers using WPF?

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :JQuery


I am new to WPF.

How to validate that textbox allow only numbers?

I do not know in which event i have write code like keydown,keyup,previewKeyup etc



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my requirement is textbox has to accept only numbers and  " ( ) - " symbols only.

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We have a form that will allow you to enter an IP address. In the table, that is the primary key. I would like to validate either during the entry or upon submission if that value is already in the table, if it is, then they cannot submit.

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private: System::Void PreventInvalidKeyOnKeyPress(System::Object^ sender, System::Windows::Forms::KeyPressEventArgs^ e) 
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I'm currently developping an application in wich I'd like to validate the input in TextBox.

So I have made my code following exactly this sample : http://weblogs.asp.net/monikadyrda/archive/2009/06/24/wpf-textbox-validation.aspx

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<asp:textbox id="txtOrderNumber" Runat="server" onchange="ClientOnChange();" ontextchanged="txtOrderNumber_TextChanged"></asp:textbox>

textbox validation



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