LoadingRow WPF的列标题

Question

How can I possibly put Header for my Loading Row. My datagrid looks like this:

I want to put a header above 1st Check, 2nd Check etc.

The first column is being created using Datagrid_LoadingRow. Here is the code:

void datagrid_LoadingRow(object sender, DataGridRowEventArgs e)
{

    if (counter.CheckCount > 1)
    {
        if ((e.Row.GetIndex() + 1) == 1)
            CheckNumber = "1st";
        else if ((e.Row.GetIndex() + 1) == 2)
            CheckNumber = "2nd";
        else if ((e.Row.GetIndex() + 1) == 3)
            CheckNumber = "3rd";
        else
            CheckNumber = (e.Row.GetIndex() + 1).ToString() + "th";
        e.Row.Header = CheckNumber + " Check";
    }
    else
    {
        e.Row.Header = (e.Row.GetIndex() + 1).ToString()  + " Check";
    }
}

Here is my XAML for datagrid. May columns are in code using ItemSource.

<DataGrid Name="datagrid" LoadingRow="datagrid_LoadingRow"  SelectionMode="Single" Margin="12,140,32,0" Height="310" VerticalAlignment="Top"  Width="746"
            BorderBrush="#FF444444" BorderThickness="1"  RowHeight="30" IsEnabled="True" IsReadOnly="True" FontSize="12" ColumnWidth="*"  FontFamily="Arial"
            HorizontalAlignment="Center" AutoGeneratingColumn="dgCheckSummary_AutoGeneratingColumn">
    <DataGrid.ColumnHeaderStyle>
        <Style TargetType="{x:Type DataGridColumnHeader}">
            <Setter Property="Background" Value="{StaticResource DataGridHeaderBackgroundBrush}" />
            <Setter Property="FontSize" Value="13" />
            <Setter Property="Padding" Value="5" />
            <Setter Property="Foreground" Value="White" />
            <Setter Property="HorizontalAlignment" Value="Stretch" />
            <Setter Property="HorizontalContentAlignment" Value="Center" />
        </Style>
    </DataGrid.ColumnHeaderStyle>
</DataGrid>

I want to make the header for the column where my row index is will be the same as the header for column Type, Amount, Edit and delete. Can anyone help me out? I'm using c# wpf. Thank you so much.

If possible can anyone tell me how can I put the row index in a column specifically in column 1? Thank so much.

Answer 1

here a full example showing how you can achieve a similar behavior without using the Loading Row event

XAML

 <Window x:Class="WpfApplication5.MainWindow"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:WpfApplication5"
            Title="MainWindow"
            Width="525"
            Height="350">
        <Window.Resources>
            <local:ConvertItemToIndex x:Key="IndexConverter"/>
        </Window.Resources>
        <Grid>
            <DataGrid Name="DG1" ItemsSource="{Binding}" CanUserAddRows="False" CanUserDeleteRows="False"  AutoGenerateColumns="True">

                <!--Bind the Content property of the RowHeaderStyle to the Converter to create numbered rows-->
                <DataGrid.RowHeaderStyle>
                    <Style TargetType="{x:Type DataGridRowHeader}">
                        <Setter Property="Content" Value="{Binding Converter={StaticResource IndexConverter}}" />
                    </Style>
                </DataGrid.RowHeaderStyle>
            </DataGrid>


        </Grid>
    </Window>

Code

using System;
using System.Collections.ObjectModel;
using System.Windows;
using System.Windows.Data;

namespace WpfApplication5
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        ObservableCollection<MyData> Datas = new ObservableCollection<MyData>();
        public MainWindow()
        {
            InitializeComponent();
            for (int i = 0; i < 100; i++)
            {
                Datas.Add(new MyData() { Prop1 = "test prop" + i, Prop2 = "test prop" + i, });

            }
            this.DataContext = Datas;  
        }
    }
    public class MyData
    {

        public string Prop1 { get; set; }
        public string Prop2 { get; set; }


    }
    public class ConvertItemToIndex : IValueConverter
    {
        private static int checkNumber; 
        #region IValueConverter Members
        //Convert the Item to an Index
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            try
            {                
                return  "Check " + ++checkNumber; 

            }
            catch (Exception e)
            {
                throw new NotImplementedException(e.Message);
            }
        }
        //One way binding, so ConvertBack is not implemented
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        #endregion
    }

}

**Result**