Updating datasource using dataadapter dating usa for muslims
Also, the final step after updating the target column would be to remove the Expression I just created on it in order to restore it to its original state, but with updated values where applicable.
You know, playing with it a bit, I think you can create a new datatable, and copy over the columns you want, without the expressions. Add(row) Next 'Get the Default Data View of the table we created and loaded above Dim dv As Data View = dt.
Abstract: Data Grid View control is a Windows Forms control that gives you the ability to customize and edit tabular data.
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Expression = "Column1" Dim col3 As New Data Column("Column3") Dim dt As New Data Table("My Table") dt. Add Range(New Data Column() ) 'Load only Column1 with data - Column2 will be loaded by the Expression Dim row As Data Row For i As Integer = 1 To 25 row = dt. You can also use your Data Adapter with this table to update your database as well. I'm going to play around with this a little and do some performance testing.Something like: UPDATE my Table SET column1 = 'updated' WHERE column1 = 'update_me' Here's the solution I came up with, which doesn't work (yet): Create a temporary column in the Data Table Set the temp column's Expression property to an IIF statement applying the update crieria Remove the Expression from the temp column but make the data persist (this is the part that doesn't work) Set the Expression property of the column to be updated to the temp column Remove the Expression from the column to be updated but make the data persist (again, won't work) Remove the temp column Here's a snippet I used to test this idea: ' Create the table Dim dt As New Data Table dt. :) ession = temp If I don't remove the Expression first, this results in a circular reference.