Can I draw a PNG file like this?

[=?Utf-8?B?S3VuIE5pdQ==?=]

Dear all,

I'm new here and I'm sorry to trouble.
But I've got the following problem when trying to draw a PNG file on a panel.
My code is like this:

Image mapImage = Image.FromFile (imageFileNames[i]);
Graphics graphics = this.splitContainer1.Panel1.CreateGraphics();
graphics.Clear(this.splitContainer1.Panel1.BackCol or);
graphics.DrawImage(mapImage, 10, 10, 50, 50);
this.splitContainer1.Panel1.Invalidate();

I can see that my imageFileNames[i] is correct.
But the image fails to appear on the screen.
Would anyone please help me out?

Thanks in advance.

[Kevin Spencer]

You have to draw it in the OnPaint method or the Paint event handler for the
Control.

--
HTH,

Kevin Spencer
Microsoft MVP

Printing Components, Email Components,
Networking Components, Controls, much more.
DSI PrintManager, Miradyne Component Libraries:
http://www.miradyne.net

"Kun Niu" <Ku****@discussions.microsoft.comwrote in message
news:26**********************************@microsof t.com...

Dear all,

I'm new here and I'm sorry to trouble.
But I've got the following problem when trying to draw a PNG file on a
panel.
My code is like this:

Image mapImage = Image.FromFile (imageFileNames[i]);
Graphics graphics = this.splitContainer1.Panel1.CreateGraphics();
graphics.Clear(this.splitContainer1.Panel1.BackCol or);
graphics.DrawImage(mapImage, 10, 10, 50, 50);
this.splitContainer1.Panel1.Invalidate();

I can see that my imageFileNames[i] is correct.
But the image fails to appear on the screen.
Would anyone please help me out?

Thanks in advance.

[=?Utf-8?B?S3VuIE5pdQ==?=]

Thank you for reminding of this event.:)

I've tried the method.
And if I delete the last code, I can also make it.:)
Like this

Image mapImage = Image.FromFile (imageFileNames[i]);
Graphics graphics = this.splitContainer1.Panel1.CreateGraphics();
graphics.Clear(this.splitContainer1.Panel1.BackCol or);
graphics.DrawImage(mapImage, 10, 10, 50, 50);
//this.splitContainer1.Panel1.Invalidate();

"Kevin Spencer" wrote:

You have to draw it in the OnPaint method or the Paint event handler for the
Control.

--
HTH,

Kevin Spencer
Microsoft MVP

Printing Components, Email Components,
Networking Components, Controls, much more.
DSI PrintManager, Miradyne Component Libraries:
http://www.miradyne.net

"Kun Niu" <Ku****@discussions.microsoft.comwrote in message
news:26**********************************@microsof t.com...

Dear all,

I'm new here and I'm sorry to trouble.
But I've got the following problem when trying to draw a PNG file on a
panel.
My code is like this:

Image mapImage = Image.FromFile (imageFileNames[i]);
Graphics graphics = this.splitContainer1.Panel1.CreateGraphics();
graphics.Clear(this.splitContainer1.Panel1.BackCol or);
graphics.DrawImage(mapImage, 10, 10, 50, 50);
this.splitContainer1.Panel1.Invalidate();

I can see that my imageFileNames[i] is correct.
But the image fails to appear on the screen.
Would anyone please help me out?

Thanks in advance.