VB.NET

VB.NET RSS

Popup Form Refresh combobox on parent form

Please support our VB.NET advertiser: $4.95 a Month - ASP.NET Web Hosting – Click Here!

•

Join Date: Mar 2005

Posts: 65

Reputation: cpopham is an unknown quantity at this point

Solved Threads: 0

cpopham

Offline

Junior Poster in Training

Popup Form Refresh combobox on parent form

May 31st, 2008

I have a parent form that has a combobox. Whn the form loads I get the data from the db and bind to the combobox. that works fine and here is the code I use in form load to cause this to happen:

 Help with Code Tags 
 VB.NET Syntax (Toggle Plain Text) 
conn.Open()
        cmd.Connection = conn
        da = New SqlCeDataAdapter(cmd1, conn)
 
        cmd.CommandText = "SELECT * FROM AccountType ORDER BY AcctType"
        da2 = New SqlCeDataAdapter(cmd)
        da2.Fill(dtAcctType)
 
        cmd.CommandText = chkSQL
        daCk = New SqlCeDataAdapter(chkSQL, conn)
        daCk.Fill(dtChk)
 
 
 
        cboType.DataSource = dtAcctType
        cboType.DisplayMember = "AcctType"
        cboType.ValueMember = "AcctTypeID"
        cboType.SelectedIndex = 0
conn.Open()
        cmd.Connection = conn
        da = New SqlCeDataAdapter(cmd1, conn)

        cmd.CommandText = "SELECT * FROM AccountType ORDER BY AcctType"
        da2 = New SqlCeDataAdapter(cmd)
        da2.Fill(dtAcctType)

        cmd.CommandText = chkSQL
        daCk = New SqlCeDataAdapter(chkSQL, conn)
        daCk.Fill(dtChk)



        cboType.DataSource = dtAcctType
        cboType.DisplayMember = "AcctType"
        cboType.ValueMember = "AcctTypeID"
        cboType.SelectedIndex = 0

Now if there is not an Account Type, I have a button that will pull up a small form to allow the addition of an account type. The popup form adds the data back to the database just fine, but I am now trying to get the combobox to refresh its data. So I call a public Sub that is located in the parent form to from the popup form to accomplish this task and I have walked the code and the sub is called and appears to work correctly, but the new data never appears in the combobox. Here is my public sub that i call to try and refresh the combobox on the parent form.

 Help with Code Tags 
 VB.NET Syntax (Toggle Plain Text) 
        Dim dtType As New DataTable
        Dim daType As SqlCeDataAdapter
 
 
        Try
            conn = New SqlCeConnection("Data Source=C:\Program Files\HomeComplete\Data\HomeComplete.sdf")
        Catch
        End Try
 
        Dim cmd As New SqlServerCe.SqlCeCommand
 
        cmd.Connection = conn
 
        cmd.CommandText = "SELECT * FROM AccountType ORDER BY AcctType"
        daType = New SqlCeDataAdapter(cmd)
 
        daType.Fill(dtType)
        cboType.Items.Clear()
        cboType.DataSource = dtType
        cboType.DisplayMember = "AcctType"
        cboType.ValueMember = "AcctTypeID"
        cboType.SelectedIndex = 0
        cboType.Refresh()
 
 
        conn.Close()
        Dim dtType As New DataTable
        Dim daType As SqlCeDataAdapter


        Try
            conn = New SqlCeConnection("Data Source=C:\Program Files\HomeComplete\Data\HomeComplete.sdf")
        Catch
        End Try

        Dim cmd As New SqlServerCe.SqlCeCommand

        cmd.Connection = conn

        cmd.CommandText = "SELECT * FROM AccountType ORDER BY AcctType"
        daType = New SqlCeDataAdapter(cmd)

        daType.Fill(dtType)
        cboType.Items.Clear()
        cboType.DataSource = dtType
        cboType.DisplayMember = "AcctType"
        cboType.ValueMember = "AcctTypeID"
        cboType.SelectedIndex = 0
        cboType.Refresh()


        conn.Close()

But when I go back to the parent form, the combobox is not updated with the new account. How can i get the combobox to refresh from the database with the new data?

Thank You, Chester