Datagridtextcolumn bind to datatable

Question

I am having some problems when I have a datatable and I want to bind each datagridtextcolumn in the datagrid to each column in the datatable.

my code is as below

public class Packet
{
    public Header header { get; set; }
    public Frame frame { get; set; }
    public Tail tail { get; set; }
    public String id { get; set; }

    public Packet(String id,Header header, Frame frame, Tail tail)
    {
        this.id = id;
        this.header = header;
        this.frame = frame;
        this.tail = tail;
    }

}

Hence on my xaml side

<Grid >
    <DataGrid AutoGenerateColumns="False" ItemsSource="{Binding Path=.}" Name="dgrid" SelectionChanged="dgrid_SelectionChanged">
        <DataGrid.Columns>
            <DataGridTextColumn Header="ID" Binding="{Binding Path=id}"/>
        </DataGrid.Columns>

    </DataGrid>
</Grid>

And on my code side, ds is a dataset which has one datatable. Each row is a packet 4 columns corresponding to header frame tail and id. I am trying to get the id to bind correctly first. But the id number cannot display on the datagrid.

dgrid.DataContext = ds.Tables[0];

It actually displays the correct data if i do not use the datagridtextcolumn on the xaml side. but what i wanted is to do the binding on the xaml side to the datatable.

It seems to be no problem. Can you see any first exception about Binding in Debug window? Or did you check the instance of ds.Tables[0] was initialized correctly? — Jin-Wook Chung
@edelweiss try to remove the binding on the datagrid then just do it on you're code. — Allan Chua
@jwJung When i run it, i saw this in the output window. System.Windows.Data Error: 40 : BindingExpression path error: 'id' property not found on 'object' ''DataRowView' (HashCode=8381127)'. BindingExpression:Path=id; DataItem='DataRowView' (HashCode=8381127); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String'). Which means it actually did not bind right? — kkh
@edelweiss: Yes, it does. The error message means that your DataTable does not have the column named id. I wonder how to relate Packet to DataRow. — Jin-Wook Chung
how is ds.Tables[0] items related to your Packet class? if your binding not work you should show us the ds.Tables[0] columns, because thats the itemssource you bind to — blindmeis

Haris Hasan Haris Hasan · Accepted Answer · 2011-10-28T05:53:45

Try this

 <Grid >
        <DataGrid AutoGenerateColumns="False" Name="dgrid" SelectionChanged="dgrid_SelectionChanged">
            <DataGrid.Columns>
                <DataGridTextColumn Header="ID" Binding="{Binding Path=id}"/>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>

    dgrid.ItemsSource = ds.Tables[0].AsDataView();

Datagridtextcolumn bind to datatable

2 Answers