Copy Text From One ASP.NET TextBox To Another

Here's a simple way of copying Text From One ASP.NET Text Box to Another as the user types, using JavaScript

Add the following TextBox to your page

<asp:TextBox ID="txtOne" runat="server" onkeyup="OneTextToOther();"></asp:TextBox>

<asp:TextBox ID="txtTwo" runat="server"></asp:TextBox>

Now add the following JavaScript in the <head> section of your page



    <script type="text/javascript">

        function OneTextToOther() {

            var first = document.getElementById('<%= txtOne.ClientID %>').value;

            document.getElementById('<%= txtTwo.ClientID %>').value = first;




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About The Author

Suprotim Agarwal
Suprotim Agarwal, ASP.NET Architecture MVP (Microsoft Most Valuable Professional) works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He is the Editor of a Developer Magazine called DNC Magazine. He has also written two EBooks 51 Recipes using jQuery with ASP.NET Controls. and The Absolutely Awesome jQuery CookBook

Follow him on twitter @suprotimagarwal

1 comment:

Zoran said...

Excellent! Thank you.