Concatenate @ character with textbox value before save it in database using C# in ASP.Net

micah

I want @ symbol to be inserted with usersname when submitting username into database

micah

0 2

for example, if a user types in his or her username the @ symbol will be attacked to the username and then sumited

diagram

------------------------------------
ID       USERNAME     
==========================================
1        @MIC

2        @STEVE

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

I agree, here is the link: https://www.e-iceblue.com/Introduce/spire-office-for-net-free.html