Setting image src with outputstream?

[Lasse Edsvik]

Hello

I was wondering if you guys could help me......

I have one textbox, image and one button on a page...... and when I click it
im trying to generate a pic and display it....

but I cant get the right datatype or anything for it to work..... im trying
to stream it.....

private void GeneratePic(string txt)

{

Font font = new Font("Impact", 144);

Image img = Image.FromFile(@"c:\inetpub\wwwroot\dbtest\goldwav e.jpg");

TextureBrush texture = new TextureBrush(img);

Bitmap tb = new Bitmap(500,250);

Graphics bmpGraphics = Graphics.FromImage(tb);

bmpGraphics.SmoothingMode = SmoothingMode.AntiAlias;

bmpGraphics.Clear(Color.White);
bmpGraphics.DrawString(txt, font, texture, 14, 10);

Response.ContentType = "image/jpeg";

tb.Save(Response.OutputStream, ImageFormat.Jpeg);

}

private void Button1_Click(object sender, System.EventArgs e)

{

if(Page.IsValid)

{

Image1.Visible = true;

Image1.ImageUrl = GeneratePic(TextBox1.Text);

}

}

[Dennis Myrén]

First, since GeneratePic returns Void you cannot do:
Image1.ImageUrl = GeneratePic(TextBox1.Text);

You need to save the image to disk first, and then set Image1.ImageUrl
to the path of the file.
You could modify the GeneratePic method to save the file to disk
and return the path to the file.
In order to successfully stream the image data to the browser,
you need to make sure there are no other content that damages the file.
You can do that like:
base.Response.ClearContent();
base.Response.ContentType = "image/jpeg";
[SAVE IMAGE TO OUTPUT STREAM HERE]
// Important to cancel page HTML rendering:
base.Response.End();
--
Regards,
Dennis JD Myrén
Oslo Kodebureau
"Lasse Edsvik" <la***@nospam.com> wrote in message
news:uD**************@tk2msftngp13.phx.gbl...

Hello

I was wondering if you guys could help me......

I have one textbox, image and one button on a page...... and when I click
it
im trying to generate a pic and display it....

but I cant get the right datatype or anything for it to work..... im
trying
to stream it.....

private void GeneratePic(string txt)

{

Font font = new Font("Impact", 144);

Image img = Image.FromFile(@"c:\inetpub\wwwroot\dbtest\goldwav e.jpg");

TextureBrush texture = new TextureBrush(img);

Bitmap tb = new Bitmap(500,250);

Graphics bmpGraphics = Graphics.FromImage(tb);

bmpGraphics.SmoothingMode = SmoothingMode.AntiAlias;

bmpGraphics.Clear(Color.White);
bmpGraphics.DrawString(txt, font, texture, 14, 10);

Response.ContentType = "image/jpeg";

tb.Save(Response.OutputStream, ImageFormat.Jpeg);

}

private void Button1_Click(object sender, System.EventArgs e)

{

if(Page.IsValid)

{

Image1.Visible = true;

Image1.ImageUrl = GeneratePic(TextBox1.Text);

}

}