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I am not able to get the changed values that i enter in the grid view .

My best effort got me the value that was in gridview before editing or changing.

Here is the code where we launch the Do Work event operation, but more importantly we pass in data which the Do Work can use to perform its operations.

The data here is special because it all resides on gui controls.

Data relations allow you to link parent and child records. Dim ds As Data Set Private Sub Form1_Load(By Val sender As System. Controls If Type Of ctrl Is Data Grid Then Dim dg As Data Grid = ctrl dg.

It needs than only to drag 3 Data Grid Views on a form and pasting this class in. Load Dim da Employees As Ole Db Data Adapter Dim da Orders As Ole Db Data Adapter Dim da Order Details As Ole Db Data Adapter Dim conn As Ole Db Connection Dim str Conn As String Dim str SQL As String Dim str Item As String Dim ctrl As Control For Each ctrl In Me.

The data grid also supports the feature to freeze columns.

Add(rel) Dim bs Orders As New Binding Source bs Orders. If you bind the old windows forms datagrid to a datarelation with Set Data Binding the records will remain in sync. Allow Navigation = False End If Next str Conn = "Provider = Microsoft. OLEDB.4.0;" str Conn &= "Data Source = Northwind.mdb;" conn = New Ole Db Connection(str Conn) ds = New Data Set da Employees = New Ole Db Data Adapter("Select * from Employees", conn) da Orders = New Ole Db Data Adapter("Select * from Orders", conn) da Order Details = New Ole Db Data Adapter("Select * from [Order Details]", conn) da Employees.

For this article I saw many websites which would individually piece these topics together, but none of them showed the the whole process. The goal of the operation is to do the work, and that work is not done on the GUI thread where a user will notice the slow down, but on a background thread. Net is the Background thread which was introduced for Winforms.

Even though the Background Worker is a nice drag and droppable component in the Winform arena it does not mean that it can’t moonlight in our WPF sandbox.

When you start reading the code from the beginning, there is an when making calls to the SQL server list, databases, and tables.

This is done because only one call back method handles all call backs from async calls.




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