WPF GridView with a dynamic definition

gridviewlistviewwpf

I want to use the GridView mode of a ListView to display a set of data that my program will be receiving from an external source. The data will consist of two arrays, one of column names and one of strings values to populate the control.

I don't see how to create a suitable class that I can use as the Item in a ListView. The only way I know to populate the Items is to set it to a class with properties that represent the columns, but I have no knowledge of the columns before run-time.

I could create an ItemTemplate dynamically as described in: Create WPF ItemTemplate DYNAMICALLY at runtime but it still leaves me at a loss as to how to describe the actual data.

Any help gratefully received.

Best Solution

You can add GridViewColumns to the GridView dynamically given the first array using a method like this:

private void AddColumns(GridView gv, string[] columnNames)
{
    for (int i = 0; i < columnNames.Length; i++)
    {
        gv.Columns.Add(new GridViewColumn
        {
            Header = columnNames[i],
            DisplayMemberBinding = new Binding(String.Format("[{0}]", i))
        });
    }
}

I assume the second array containing the values will be of ROWS * COLUMNS length. In that case, your items can be string arrays of length COLUMNS. You can use Array.Copy or LINQ to split up the array. The principle is demonstrated here:

<Grid>
    <Grid.Resources>
        <x:Array x:Key="data" Type="{x:Type sys:String[]}">
            <x:Array Type="{x:Type sys:String}">
                <sys:String>a</sys:String>
                <sys:String>b</sys:String>
                <sys:String>c</sys:String>
            </x:Array>
            <x:Array Type="{x:Type sys:String}">
                <sys:String>do</sys:String>
                <sys:String>re</sys:String>
                <sys:String>mi</sys:String>
            </x:Array>
        </x:Array>
    </Grid.Resources>
    <ListView ItemsSource="{StaticResource data}">
        <ListView.View>
            <GridView>
                <GridViewColumn DisplayMemberBinding="{Binding Path=[0]}" Header="column1"/>
                <GridViewColumn DisplayMemberBinding="{Binding Path=[1]}" Header="column2"/>
                <GridViewColumn DisplayMemberBinding="{Binding Path=[2]}" Header="column3"/>
            </GridView>
        </ListView.View>
    </ListView>
</Grid>
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