如何防止用户打印打印文档的内容，只显示数据？ [英] How to prevent user from print content of print documents and only show data ?
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问题描述
问题
如何阻止用户打印打印文档的内容并仅显示数据？
代码低于工作成功且没有任何问题
唯一的问题是报告document.print在打印预览上显示数据
同时它是打印数据
实际上我不需要打印数据
我只需预览数据，但下面的代码打印数据并显示
对话框pox打印1页
如何防止打印数据？
数据表格式检查
public DataTable GetChecked（）
{
DataTable table = new DataTable（）;
table.Columns.Add（" MemberCode"，typeof（string））;
table.Columns.Add（" SpecialCode"，typeof（string））;
table.Columns.Add（" Name"，typeof（string））;
table.Columns.Add（" MemberImage"，typeof（Byte []））;
for（int i = 0; i< dtDisplayDataPayment.Rows.Count; i ++）
{
bool Ischecked = Convert.ToBoolean（ GridFooter.Rows [I] .Cells [" PrintFlag"]。值）;
if（Ischecked == true）
{
DataRow newRow = table.NewRow（）;
newRow [" MemberCode"] = Utilities.ObjectConverter.ConvertToString（dtDisplayDataPayment.Rows [i] [" MemberCode"]）;
newRow [" SpecialCode"] = Utilities.ObjectConverter.ConvertToString（dtDisplayDataPayment.Rows [i] [" SpecialCode"]）;
newRow [" Name"] = Utilities.ObjectConverter.ConvertToString（dtDisplayDataPayment.Rows [i] [" Name"]）;
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）;
}
table.Rows.Add（newRow）;
}
}
返回表;
}
void document_PrintPage（object sender，PrintPageEventArgs e）
{
dtGetChecked = GetChecked（）;
PrintDocument document =（PrintDocument）sender;
Graphics g = e.Graphics;
画笔刷=新的SolidBrush（Color.Black）;
钢笔=新笔（刷）;
Font font = new Font（" Arial"，10，FontStyle.Bold）;
Font fonte = new Font（" Arial"，15，FontStyle.Bold）;
int x = 0，y = 0，width = 200，height = 30;
SizeF sizeeee = g.MeasureString（" TIME ::"，fonte）;
float xPaddingeee =（width - sizeeee.Width）/ 2;
g.DrawString（" TIME ::"，fonte，brush，x + xPaddingeee，y + 5）;
x + =宽度;
SizeF sizee = g.MeasureString（DateTime.Now.ToString（），fonte）;
float xPaddinge =（width - sizee.Width）/ 2;
g.DrawString（DateTime.Now.ToString（），fonte，brush，x + xPaddinge，y + 5）;
x + =宽度;
for（int kk = 0; kk< 2; kk ++）
{
SizeF sizeee = g.MeasureString（""，font）;
float xPaddingee =（width - sizee.Width）/ 2;
g.DrawString（""，font，brush，x + xPaddingee，y + 5）;
x + =宽度;
}
x = 0;
y + = 60;
foreach（dtGetChecked.Columns中的DataColumn列）
{
dtGetChecked.Columns [0] .ColumnName ="كودالعضو" ;;
dtGetChecked.Columns [1] .ColumnName ="الكودالخاص" ;;
dtGetChecked.Columns [2] .ColumnName ="الاسم" ;;
dtGetChecked.Columns [3] .ColumnName ="صورهشخصيه" ;;
// ====
g.DrawRectangle（笔，x，y，宽度，高度）;
SizeF size = g.MeasureString（column.ColumnName，fonte）;
float xPadding =（width-size.Width）/ 2;
g.DrawString（column.ColumnName，fonte，brush，x + xPadding，y + 5）;
x + =宽度;
}
x = 0;
y + = 30;
int columnCount = dtGetChecked.Columns.Count;
foreach（dtGetChecked.Rows中的DataRow行）
{
for（int i = 0; i< columnCount; i ++）
{
g.DrawRectangle（笔，x，y，宽度，高度）;
SizeF size = g.MeasureString（row [i] .ToString（），font）;
float xPadding =（width-size.Width）/ 2;
if（i == 3）
{
if（row [i]！= System.DBNull.Value）
{
Point loc = new Point（Utilities） .ObjectConverter.ConvertToInteger（x + xPadding），y + 5）;
//g.DrawImage(byteArrayToImage((byte[])row[i]），x + xPadding，y + 5）;
g.DrawImage（byteArrayToImage（（byte []）row [i]），new Rectangle（x + 60，y，50,30））;
}
}
其他
{
g.DrawString（row [i] .ToString（），font ，刷，x + xPadding，y + 5）;
}
x + =宽度;
}
x = 0;
y + = 30;
}
用于按钮打印预览的代码
private void PrintPreview_Click（object sender，EventArgs e）
{
PrintDocument document = new PrintDocument（）;
PrintController printController = new StandardPrintController（）;
document.PrintController = printController;
document.PrintPage + = new PrintPageEventHandler（document_PrintPage）;
PrintPreviewDialog ppDialog = new PrintPreviewDialog（）;
（（ToolStripButton）（（ToolStrip）ppDialog.Controls [1]）。Items [0]）。Enabled = false;
ppDialog.Document = document;
ppDialog.Show（）;
}
所以，请帮助我
我想在两天之前，直到现在还没达到如何防止打印？
解决方案
您好，
在以下帖子中是一系列禁用打印按钮的选项。
Problem
How to prevent user from print content of print documents and only show data ?
code below work success and without any problem
only problem is report document.print show data on print preview
and in same time it is print data
actually i dont need to print data
i need to preview data only but code below on print data and show
dialog pox print 1 of page
How to prevent print data please ?
datatable get checked
public DataTable GetChecked()
{
DataTable table = new DataTable();
table.Columns.Add("MemberCode", typeof(string));
table.Columns.Add("SpecialCode", typeof(string));
table.Columns.Add("Name", typeof(string));
table.Columns.Add("MemberImage", typeof(Byte[]));
for (int i = 0; i < dtDisplayDataPayment.Rows.Count; i++)
{
bool Ischecked = Convert.ToBoolean(GridFooter.Rows[i].Cells["PrintFlag"].Value);
if (Ischecked == true)
{
DataRow newRow = table.NewRow();
newRow["MemberCode"] = Utilities.ObjectConverter.ConvertToString(dtDisplayDataPayment.Rows[i]["MemberCode"]);
newRow["SpecialCode"] = Utilities.ObjectConverter.ConvertToString(dtDisplayDataPayment.Rows[i]["SpecialCode"]);
newRow["Name"] = Utilities.ObjectConverter.ConvertToString(dtDisplayDataPayment.Rows[i]["Name"]);
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);
}
table.Rows.Add(newRow);
}
}
return table;
}
void document_PrintPage(object sender, PrintPageEventArgs e)
{
dtGetChecked = GetChecked();
PrintDocument document = (PrintDocument)sender;
Graphics g = e.Graphics;
Brush brush = new SolidBrush(Color.Black);
Pen pen = new Pen(brush);
Font font = new Font("Arial", 10, FontStyle.Bold);
Font fonte = new Font("Arial", 15, FontStyle.Bold);
int x = 0, y = 0, width = 200, height = 30;
SizeF sizeeee = g.MeasureString("TIME :: ", fonte);
float xPaddingeee = (width - sizeeee.Width) / 2;
g.DrawString("TIME :: ", fonte, brush, x + xPaddingeee, y + 5);
x += width;
SizeF sizee = g.MeasureString(DateTime.Now.ToString(), fonte);
float xPaddinge = (width - sizee.Width) / 2;
g.DrawString(DateTime.Now.ToString(), fonte, brush, x + xPaddinge, y + 5);
x += width;
for (int kk = 0; kk < 2; kk++)
{
SizeF sizeee = g.MeasureString("", font);
float xPaddingee = (width - sizee.Width) / 2;
g.DrawString("", font, brush, x + xPaddingee, y + 5);
x += width;
}
x = 0;
y += 60;
foreach (DataColumn column in dtGetChecked.Columns)
{
dtGetChecked.Columns[0].ColumnName = "كود العضو";
dtGetChecked.Columns[1].ColumnName = "الكود الخاص";
dtGetChecked.Columns[2].ColumnName = "الاسم";
dtGetChecked.Columns[3].ColumnName = "صوره شخصيه";
//====
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;
if (i == 3)
{
if (row[i] != System.DBNull.Value)
{
Point loc = new Point(Utilities.ObjectConverter.ConvertToInteger( x + xPadding), y + 5);
//g.DrawImage(byteArrayToImage((byte[])row[i]), x + xPadding, y + 5);
g.DrawImage(byteArrayToImage((byte[])row[i]), new Rectangle(x+60, y , 50, 30));
}
}
else
{
g.DrawString(row[i].ToString(), font, brush, x + xPadding, y + 5);
}
x += width;
}
x = 0;
y += 30;
}
code using for button print preview
private void PrintPreview_Click(object sender, EventArgs e)
{
PrintDocument document = new PrintDocument();
PrintController printController = new StandardPrintController();
document.PrintController = printController;
document.PrintPage += new PrintPageEventHandler(document_PrintPage);
PrintPreviewDialog ppDialog = new PrintPreviewDialog();
((ToolStripButton)((ToolStrip)ppDialog.Controls[1]).Items[0]).Enabled = false;
ppDialog.Document = document;
ppDialog.Show();
}so please can you help me
i think before two days and until now not reach how to prevent print ?
解决方案
Hello,
In the following post there are a range of options to disable the print button.
https://stackoverflow.com/questions/3772776/disabling-print-button-in-net-print-preview-dialog
这篇关于如何防止用户打印打印文档的内容，只显示数据？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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