Textbox - Validate Text Box Contains Integer Greater Than Equal To Zero?

Mar 29, 2010

If I want to validate that a text box contains an integer greater than or equal to zero. Do I need to use TWO asp:CompareValidator controls: one with a DataTypeCheck operator and one with a GreaterThanEqual operator?

Or is the datatype operator redundant? Can I just use a single validator with the GreaterThanEqual operator (and the type set to Integer)?

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Here is the code:


Code:

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Source Error:
Quote:




Line 11: command.Parameters.Add("@Password", Data.SqlDbType.VarChar).Value = TextBox2.Text
Line 12: connection.Open()
Line 13: intusercount = command.ExecuteScalar
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System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +2030802
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System.Data.SqlClient.SqlDataReader.get_MetaData() +86
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_Default.Button1_Click(Object sender, EventArgs e) in C:UsersUserDocumentsVisual Studio 2010WebSitesWebSite13Default.aspx.vb:13
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