选择dataGrid行并打印行数据 [英] Selecting dataGrid row and print row data

问题描述

我的dataGrid中有一些行，当我选择其中的一行并打印其数据时，将仅打印数据库的第一张图像，而我只需要打印选定的行图像.

There are some rows in my dataGrid, when i select one of them and print it''s data, only first image of database will print while i only need to print selected row image.

<Image VerticalAlignment="Center" HorizontalAlignment="Center" Stretch="Fill" Name="PictureBox"

                       Source="{Binding Picture}" DataContext="{Binding Path=SelectedItem, ElementName=grdPersonnel1}" Opacity="2">
	</Image>

private void Print_Click(object sender, RoutedEventArgs e)
        {
            System.Windows.Controls.PrintDialog printDialog = new System.Windows.Controls.PrintDialog();
            if (printDialog.ShowDialog() == true)
            {
                
                DrawingVisual dv = new DrawingVisual();
                var dc = dv.RenderOpen();
              
                SqlConnection con = new SqlConnection();
                con.ConnectionString = @"Data Source=.\SQLEXPRESS;AttachDbFilename=D:\Database\Data.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True";
                SqlCommand cmd = new SqlCommand();
                BitmapImage bmp = new BitmapImage();
                cmd.CommandText = "SELECT Picture FROM DataBase";
                cmd.Connection = con;
                con.Open();
                bmp.CacheOption = BitmapCacheOption.OnLoad;
                bmp.BeginInit();
                bmp.StreamSource = new System.IO.MemoryStream((Byte[])cmd.ExecuteScalar());
                bmp.EndInit();
                dc.DrawImage(bmp, new Rect(140, 170, 150, 150));
-

                dc.DrawText(new FormattedText("Name:", CultureInfo.GetCultureInfo("en-us"), FlowDirection,
                     new Typeface(new System.Windows.Media.FontFamily("Courier New"), FontStyles.Normal, FontWeights.Bold,
                         FontStretches.Normal), 12, System.Windows.Media.Brushes.Black), new System.Windows.Point(700, 180));
                dc.DrawText(new FormattedText(txtName.Text, CultureInfo.GetCultureInfo("en-us"), FlowDirection,
                      new Typeface(new System.Windows.Media.FontFamily("Courier New"), FontStyles.Normal, FontWeights.Normal,
                          FontStretches.Normal), 11, System.Windows.Media.Brushes.Black), new System.Windows.Point(550, 180));

                dc.Close();             
                printDialog.PrintVisual(dv, "Print");
            }
		}

推荐答案

我解决了.

I solved it.

private void Print_Click(object sender, RoutedEventArgs e)
{
    System.Windows.Controls.PrintDialog printDialog = new System.Windows.Controls.PrintDialog();
    if (printDialog.ShowDialog() == true)
    {                
        DrawingVisual dv = new DrawingVisual();
        var dc = dv.RenderOpen();

         SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=D:\Database\Database.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
            SqlCommand cmd = new SqlCommand();

            BitmapImage bmp = new BitmapImage();
            cmd.CommandText = "Select Picture from Database where Code=@Code";
            cmd.Parameters.Add("@Code", SqlDbType.NVarChar, 30);
            cmd.Parameters["@Code"].Value = this.txtCode.Text;
            cmd.Connection = con;
            con.Open();

            bmp.CacheOption = BitmapCacheOption.OnLoad;
            bmp.BeginInit();
            bmp.StreamSource = new System.IO.MemoryStream((Byte[])cmd.ExecuteScalar());
            bmp.EndInit();
            dc.DrawImage(bmp, new Rect(140, 170, 150, 150));

        dc.DrawText(new FormattedText("Name:", CultureInfo.GetCultureInfo("en-us"), FlowDirection,
             new Typeface(new System.Windows.Media.FontFamily("Courier New"), FontStyles.Normal, FontWeights.Bold,
                 FontStretches.Normal), 12, System.Windows.Media.Brushes.Black), new System.Windows.Point(700, 180));
        dc.DrawText(new FormattedText(txtName.Text, CultureInfo.GetCultureInfo("en-us"), FlowDirection,
              new Typeface(new System.Windows.Media.FontFamily("Courier New"), FontStyles.Normal, FontWeights.Normal,
                  FontStretches.Normal), 11, System.Windows.Media.Brushes.Black), new System.Windows.Point(550, 180));


        dc.Close();

        printDialog.PrintVisual(dv, "Print");
    }

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