Binding Data to DataGridView in VB.Net
- by Peter
Hi,
I have a bit of code which loads data from a stored procedure in MS SQL Server and then loads the data to a datagridview, which works fine. What i want is for the code that connects / loads the data to sit in my Database Class and then everything associated with the datagridview to be stored in my Form but i am having problems passing the contents of the bindingsource over to the Form from the Database Class.
Form1
Public Class Form1
Dim myDatabaseObj As New Class1()
Dim bindingSource1 As New BindingSource()
Dim connectString As New SqlConnection
Dim objDataAdapter As New SqlDataAdapter
Dim table As New DataTable()
Dim tabletest As New DataTable()
Private Sub loadCompanyList()
Try
Me.dgv_CompanyList.DataSource = Me.bindingSource1
getCompanyList()
Catch ex As NullReferenceException
End Try
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles MyBase.Load
loadCompanyList()
End Sub
End Class
Database Class
When i try place the getCompanyList() in a class and then create a new object that references the Form() it does not seem to return any value from the table to the MyForm.BindingSource1.Datasource meaning my datagridview displays not data.
.....
Private Sub getCompanyList()
Try
Dim myForm as new Form()
connect_Transaction_Database()
objDataAdapter.SelectCommand = New SqlCommand()
objDataAdapter.SelectCommand.Connection = connectString
objDataAdapter.SelectCommand.CommandText = "sp_GetCompanyList"
objDataAdapter.SelectCommand.CommandType = CommandType.StoredProcedure
Dim commandBuilder As New SqlCommandBuilder(Me.objDataAdapter)
Dim table As New DataTable()
table.Locale = System.Globalization.CultureInfo.InvariantCulture
Me.objDataAdapter.Fill(table)
**MyForm.bindingSource1.DataSource = table**
Catch ex As DataException
MsgBox(ex.Message)
Catch ex As NullReferenceException
MsgBox(ex.Message)
End Try
disconnect_Transaction_Database()
End Sub
If anyone could help.
Thank you.
Peter
