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06.17.2008 at 05:14PM PDT, ID: 23493709
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How to check username availability?

Asked by Robertyue in Programming for ASP.NET

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Hi Guys,
I'm using ASP.net + VB.Net + Access. Please help me to uderstand how to check username availability? Thanks. I have the following code:
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Protected Sub submitButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submitButton.Click
        Dim con As New Data.OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("..\App_data\GLC.mdb"))
        Dim SqlCommand As New Data.OleDb.OleDbCommand
        Dim SqlCommandPro As New Data.OleDb.OleDbCommand
        SqlCommand.CommandText = "INSERT INTO Students ( Username, [Password], SchoolID, LastName, FirstName, Email ) Values ('" + UserName.Text.Replace("'", "_") + "','" + Password.Text.Replace("'", "_") + "','" + DropDownListSchool.SelectedValue + "','" + LastName.Text.Replace("'", "_") + "','" + FirstName.Text.Replace("'", "_") + "','" + Email.Text.Replace("'", "_") + "')"
        SqlCommandPro.CommandText = "INSERT INTO ProgramsStudents (Username, CourseID) Values ('" + UserName.Text.Replace("'", "_") + "','" + DropDownListProgram.SelectedValue + "')"
 
 
 
        If Page.IsValid Then
 
 
            con.Open()
 
            SqlCommand.Connection = con
            SqlCommandPro.Connection = con
 
            SqlCommand.ExecuteNonQuery()
            SqlCommandPro.ExecuteNonQuery()
 
 
            con.Close()
 
        End If
    End Sub
[+][-]06.17.2008 at 05:16PM PDT, ID: 21808646

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[+][-]06.17.2008 at 05:54PM PDT, ID: 21808889

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[+][-]06.17.2008 at 06:11PM PDT, ID: 21809022

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About this solution

Zone: Programming for ASP.NET
Tags: ASP.Net VB.Net
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Solution Provided By: GreymanMSC
Participating Experts: 1
Solution Grade: A
 
 
[+][-]06.17.2008 at 07:00PM PDT, ID: 21809339

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[+][-]06.17.2008 at 07:07PM PDT, ID: 21809398

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[+][-]06.18.2008 at 02:41PM PDT, ID: 21817546

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