Set datagrid itemssource mode programmatically

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Hello all,

I was wondering if you could help me out. I am trying to convert

<DataGrid x:Name="testdatagrid" ItemsSource="{Binding TestDataVM, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Grid.Row="2" AutoGenerateColumns="True" Margin="0,0,429,146"/>

and set the itemssource of my testdatagrid programmatically to a dataset to be able to switch between tables on the click of a button.

I have managed to set the itemssource with the following code:

VB

testdatagrid.Itemssource = TestDataVM.TestDataset.Tables("test").defaultview

but I would like to set the mode to twoway to have the datagrid refresh automatically and also set the Updatesourcetrigger to property changed.

I could not find what I was looking for online. I tried creating a new binding and setting the mode and updatesourcetrigger

VB

Dim b as New Binding
b.mode = mode.twoway
....
testdatagrid.setbinding(testdatagrid.Itemssource, b)

but that did not work. Does anyone here have an idea of how I could set the mode and sourcetrigger programmatically? Maybe I am doing something fundamentally wrong here?

Posted 11-Dec-13 12:43pm

Member 9892606

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noblepaulaziz 11-Dec-13 19:15pm

Are you sure it is ItemSource property and not DataSource property you want to set programmatically?

I have not come across such property as itemsource property for DataGridView.

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Clifford Nelson · Answer 1 · 2013-12-11T13:13:00

First of all if you are using binding, then you just have to change the value of TestDataVM in the ViewModel to what you want to display. What you are doing is setting the datasource directly, and that means you are not using binding, so of course the binding will not work. If you want to programatically set the binding: http://stackoverflow.com/questions/6988273/wpf-binding-programatically[^]