Search by name and id in asp.net

I have to search on form with id and name also in asp.net,

what condition should i use to check the user is entered id in text box id field or text box for name or should i use only 1 textbox for search by开发者_如何学运维 id and name too..

m using sql server 2005 for storing records.

thank u

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On your ASP.Net page, you can use a RequiredFieldValidator to make sure that the user has entered something in the textbox.

<asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="Please enter your user name." ControlToValidate="UserNameTextBox" Display="Dynamic" />

I would use one textbox and let the user enter either their username or ID.

Then you write a query on the database to SELECT COUNT(*) FROM Users WHERE (UserName = @UserName) OR (UserID = @UserID). Something like that. If COUNT equals zero, there was no match. If COUNT is greater than zero, you have a match.

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Use a combo box with two values: ID, Name

Then when user types in textbox, you can check the value selected in combobox, to know whether he is searching by Id or Name