如何动态创建DataGrid的DataGridTextColumn并将其绑定？

Question

I have two properties:

• public ObservableCollection<Object> HeaderOfDataGrid {get; set;}
• public Observablecollection<Object> BodyOfDataGrid {get; set;}

Is it possible to bind HeaderOfDataGrid property to DataGridTextColumn ? Yeah, I know that it is possible by binding like that:

<DataGrid.Columns>
   <DataGridTextColumn Header="Name" Binding="{Binding Name}"/>
   <DataGridTextColumn Header="Surname" Binding="{Binding Surname}"/>
   <DataGridTextColumn Header="Phone" Binding="{Binding Phone_Number}" />
</DataGrid.Columns>

However, HeaderOfDataGrid property can have 'Count' equals 700 and I need to show all 700 items of collection HeaderOfDataGrid in DataGridTextColumns of DataGrid . So, I need to create 700 DataGridTextColumns based on HeaderOfDataGrid property(collection). Also, if Count of HeaderOfDataGrid property is 700, then BodyOfDataGrid property also has the same Count (for example, 700). So using hard-coded xaml is not convenient to me.

I know I can bind this way:

<DataGrid ItemsSource="{Binding Path=Body, Mode=TwoWay}"/>

But it is not what I want as I would like to renamed headers located in Header property.

How to implement binding and creating without hard-coded xaml to DataGridTextColumn ?

Answer 1

You can't have it both ways. If you want to rename the headers, you'll have to code it manually; otherwise you do it automatically and use what it gives you.

You may be able to set up a style, where the header is bound to a property of the underlying object. In that case it may work, but your BodyOfDataGrid would have to contain a Header property

Answer 2

What I've found to do is to create DataTable and bound it to DataGrid :

XAML:

<DataGrid Name="dataGrid" />

Code behind:

    public MainWindow()
    {
        InitializeComponent();
        PopulateDataGrid();
    }

    DataTable employeeDataTable = new DataTable();

    private void PopulateDataGrid()
    {
        var _ds = new DataSet("Test");

        employeeDataTable = _ds.Tables.Add("DT");
        for (int i = 0; i < 10; i++)//create columns
        {   
            if(i==0)
                employeeDataTable.Columns.Add("Row");                
            employeeDataTable.Columns.Add(i.ToString());
        }
        for (int i = 0; i < 10; i++)//fill data to rows
        {
            var theRow = employeeDataTable.NewRow();
            for (int j = 0; j < 10; j++)
            {
                if (j == 0)
                {
                    theRow[j] = (i + 1);
                    continue;
                }
                if (j % 2 == 0)                    
                    theRow[j] = "a";  
                else                  
                    theRow[j] = "b";
            }
            employeeDataTable.Rows.Add(theRow);
        }
        dataGrid.ItemsSource = employeeDataTable.AsDataView();
    }