WPF Datagrid组合框XAML和代码隐藏

Question

Since I am a beginner in WPF, I have a question which might be basic in nature.

I have a datagrid which has a combobox.

The xaml which I have written is:

<DataGridComboBoxColumn Header="ControlOption" Width="100"
       SelectedItemBinding="{Binding Path=DataGridComboxBox_Control}">
    <DataGridComboBoxColumn.ItemsSource>
        <col:ArrayList>
            <sys:String>Database1</sys:String>
            <sys:String>DataBase2</sys:String>
        </col:ArrayList>
    </DataGridComboBoxColumn.ItemsSource>
</DataGridComboBoxColumn>

I have 3 values which should be there in the drop down of the comboBox. 1. WorkStream1 2. WorkStream2 3. WorkStream3

Now how do I write the codebehind for the ComboxBox. Please do give me pointers in this. :)

Very much appreciated.

Ashutosh

Answer 1

Sorry, haven't quite understood you. Do you want to replace the itemssource of combobox from code behind? In this case you can to bind combobox's ItemsSource to property. Like that:

<Controls:DataGridComboBoxColumn Header="Gender" ItemsSource="{Binding Path=Genders}" />

and in code behind will be smth like

    public ObservableCollection<string> Genders
    {
        get {
            return _genders;
        }
        set { _genders = value;
            PropertyChanged(this, new PropertyChangedEventArgs("Genders"));
        }
    }

If you meant smth else, explain please. May be I've understood you in a wrong way

Answer 2

use datagrid_PreviewKeyDown function to capture keypressed in grid. if the cell is focused use datagrid.BeginEdit() to convert cell from text block to combo box. i think this will help to solve the issue.