when draw image on print document it return system.Byte[] an

problem

when draw image on print document it return system.Byte[] and not return image .

sql field is MemberImage with datataype varbinarymax .

on datatable of print document i defined image as

DataTable table = new DataTable();
table.Columns.Add("MemberCode", typeof(string));
table.Columns.Add("MemberImage", typeof(Byte[]));
if (dtDisplayDataPayment.Rows[i]["MemberImage"] != System.DBNull.Value)
{
byte[] photo_aray = (byte[])dtDisplayDataPayment.Rows[i]["MemberImage"];
System.Drawing.ImageConverter converter = new System.Drawing.ImageConverter();
Image img = (Image)converter.ConvertFrom(photo_aray);
newRow["MemberImage"] = imageToByteArray(img);
}
on print _document event i do as following
foreach (DataColumn column in dtGetChecked.Columns)
{
g.DrawRectangle(pen, x, y, width, height);
SizeF size = g.MeasureString(column.ColumnName, fonte);
float xPadding = (width - size.Width) / 2;
g.DrawString(column.ColumnName, fonte, brush, x + xPadding, y + 5);
x += width;
}
x = 0;
y += 30;
int columnCount = dtGetChecked.Columns.Count;
foreach (DataRow row in dtGetChecked.Rows)
{
for (int i = 0; i < columnCount; i++)
{
g.DrawRectangle(pen, x, y, width, height);
SizeF size = g.MeasureString(row[i].ToString(), font);
float xPadding = (width - size.Width) / 2;
g.DrawString(row[i].ToString(), font, brush, x + xPadding, y + 5);
x += width;
}
x = 0;
y += 30;
}
under button print private void button1_Click(object sender, EventArgs e)
{
//for datatable
PrintDocument document = new PrintDocument();
document.PrintPage += new PrintPageEventHandler(document_PrintPage);
PrintPreviewDialog ppDialog = new PrintPreviewDialog();
ppDialog.Document = document;
((ToolStripButton)((ToolStrip)ppDialog.Controls[1]).Items[0]).Enabled = false;
ppDialog.Show();

but image not display it display as system.Byte[]

so that how to solve this problem please

1 Reply

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Salman Beg7y ago
Hi. When you are adding the value in datatable then at that time you need to use byte[] but when you are displaying then at that time again you need to convert that byte[] to image and you need to bind otherwise it will not work. For more you you can follow this link which contains how you need to assign the byte[] in datatable and while binding how you need to convert that byte[] to image, https://stackoverflow.com/questions/15380187/how-can-i-add-image-in-a-datatable . Thanks
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