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allow only characters in textbox In Asp.net using C# you can use below code in your textbox text changed event private void textBox1_TextChanged(object sender, EventArgs e) { if (System.Text.RegularExpressions.Regex.IsMatch("^[a-zA-Z]", textBox1.Text))…

Allow only numbers in a Text box in Asp.net using C#. How to allow only numbers in a textbox in C# Windows Application ? Use below code for validation private…

Allow only number in TextBox in asp.net using java script first Add this java script between head portion in aspx page <script type="text/javascript"> function ValidateNmber(obj, evt) { var charCode =…