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Please check i update my question,
and please help now
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That should crash: pe is null
PrintPageEventArgs pe;
...
SizeF sz = pe.MeasureString(panel2.watermarkText, panel2.watermarkFont, (int)image_draw_wd, stringFormat); You need to use the PrintPageEventArgs that is passed in as part of the PrintPage event or the metrics you use for MeasureString won't work anyway as they aren't relevant to the device context you are drawing on - even if you construct one somewhere and don't show it here.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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its not null its come from here
private void PrintDocument1_PrintPage(object sender, PrintPageEventArgs pe)
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Thanks - I assumed it would, but when it's explicitly shown as a new declaration it needs to be confirmed.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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sorry to poor presentation
but please understand and help me
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When you say "the text not fully visible" what exactly do you mean?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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is there any option to show the image how can i upload my drawing image to describe u better
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No, because we get some idiots here who would post ... ummm ... objectional material 
You wouldn't believe what tries to get through moderation ATM, and we can't moderate every post, there aren't enough of us volunteers to do that. And you don't have sufficient rep yet to store images here.
You could put it up on Dropbox / Google and provide a link?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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actual design like this
Actual_Label.png - Google Drive[^]
and printed like this
Label_print.png - Google Drive[^]
but when i draw string horizontally its print like original
one more thing when i check its print preview its looks perfect,so why its not print ok
thats why i cant understand where is the problem
modified 30-Nov-19 4:20am.
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OK - I'm trying to duplicate exactly what you have, but ... your code won't compile without errors and I don't want to fix them in case I "fix them wrong".
For example:
RectangleF dr_rect = new RectangleF(new Point(X, Y, new Size(image_draw_wd, ((int)sz.Height) + extra_margin));
Missing a close bracket (at a guess, after the "Point(X, Y" is where it goes).
PrintPageEventArgs doesn't contain methods MeasureString, TranslateTransform, and RotateTransform: PrintPageEventAgrs.Graphics does.
If that is copy'n'pasted from your app, then it's possible you are testing an older version of your source - in which case the display fault may no longer exist if you fix that code.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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private void FrmMain_Shown(object sender, EventArgs e)
{
PrintDocument pd = new PrintDocument();
pd.PrintPage += Pd_PrintPage;
PrintPreviewDialog pdi = new PrintPreviewDialog { Document = pd };
pdi.ShowDialog();
}
private void Pd_PrintPage(object sender, PrintPageEventArgs pe)
{
int X = 0;
int Y = 0;
RectangleF rect2 = panel2.ClientRectangle;
float image_draw_wd = panel2.Width;
float image_draw_ht = panel2.Height;
Brush myBrush = new SolidBrush(Color.FromArgb(128, Color.Blue));
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.FormatFlags = StringFormatFlags.LineLimit;
stringFormat.Trimming = StringTrimming.Word;
SizeF sz = pe.Graphics.MeasureString("A line of text to display", Font, (int)image_draw_wd, stringFormat);
double angle = 0;
double angleRadians = Math.Atan2(image_draw_ht, image_draw_wd);
angle = angleRadians * 180.0 / Math.PI;
pe.Graphics.TranslateTransform((rect2.Location.X + rect2.Width / 2), (rect2.Location.Y + rect2.Height / 2));
pe.Graphics.RotateTransform((float)angle);
pe.Graphics.TranslateTransform(-(rect2.Location.X + rect2.Width / 2), -(rect2.Location.Y + rect2.Height / 2));
X = 10;
Y = 10;
RectangleF dr_rect = new RectangleF(new Point(X, Y), new Size((int) image_draw_wd, ((int)sz.Height) + 10));
pe.Graphics.DrawString("A line of text to display", Font, myBrush, dr_rect, stringFormat);
}
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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i already mention in preview its ok
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Yes, but your code doesn't compile, so that has to be taken with a pinch of salt! 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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And if I change my code:
private void FrmMain_Shown(object sender, EventArgs e)
{
PrintDocument pd = new PrintDocument();
pd.PrintPage += Pd_PrintPage;
PrintDialog pdi = new PrintDialog { Document = pd };
pdi.ShowDialog();
pd.Print();
It prints fine to PDF, XPS, OneNote, ...
So the code seems OK as far as I can see.
So ... what happens if you fix the compiler errors, and print to - say - OneNote?
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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private void Pd_PrintPage(object sender, PrintPageEventArgs pe)
{
string watermarkText = "Your Name © 2015, All Rights Reserved";
Font watermarkFont = new Font("Microsoft Sans Serif", 18, FontStyle.Bold);
int X = 0;
int Y = 0;
RectangleF rect2 = panel2.ClientRectangle;
float image_draw_wd = panel2.Width;
float image_draw_ht = panel2.Height;
Brush myBrush = new SolidBrush(Color.FromArgb(128, Color.Blue));
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.FormatFlags = StringFormatFlags.LineLimit;
stringFormat.Trimming = StringTrimming.Word;
SizeF sz = pe.Graphics.MeasureString(watermarkText, watermarkFont, (int)image_draw_wd, stringFormat);
double angle = 0;
double angleRadians = Math.Atan2(image_draw_ht, image_draw_wd);
angle = angleRadians * 180.0 / Math.PI;
pe.Graphics.TranslateTransform((rect2.Location.X + rect2.Width / 2), (rect2.Location.Y + rect2.Height / 2));
pe.Graphics.RotateTransform((float)angle);
pe.Graphics.TranslateTransform(-(rect2.Location.X + rect2.Width / 2), -(rect2.Location.Y + rect2.Height / 2));
X = 10;
X = (int)(panel2.Width - sz.Width) / 2;
Y = 10;
Y = (int)(panel2.Height - sz.Height) / 2;
RectangleF dr_rect = new RectangleF(new Point(X, Y), new Size((int)image_draw_wd, ((int)sz.Height) + 10));
pe.Graphics.DrawString(watermarkText, watermarkFont, myBrush, dr_rect, stringFormat);
}
preview , pdf n all looks same n fine why its not print on actual printer
my model is
HP deskjet gt 5811
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At a guess, driver problems.
I can't test that - I have a Samsung colour laser as I got fed up with inkjets never working when I needed them ...
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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ok thank u so much for your support
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No problem - sorry I can't do more!
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
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Hi,
I have a dialogue window. In that I have a label called "Filter By". Its of Combo box style.
I am trying to type a letter “e”. It should bring up the next item in the drop down that begins with “E” but instead closes the window.
Any suggestions on how to rectify this?
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What kind of app? Windows Forms, WPF, ASP.NET ... ?
Also, without seeing any code behind the window, it's going to be quite difficult to tell you what's going on. Just dropping a ComboBox on a form and running it isn't going to do what you described at all, so there's got to be some code on the form that's not behaving like you expect.
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As you haven't provided any real detail, the most detailed answer I can give is that you'll need to do a SELECT using your value.
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"SELECT"? He didn't say it was a SQL based database. You're making a lot of assumptions here 
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This is true. It could be a find for all I know. Well spotted.
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It's easy:
commandText = "SELECT user from UserTable where id = @username"
SqlCommand command = new SqlCommand(commandText, connection);
command.Parameters.AddWithValue("@username", tbUser.Text);
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