Dynamic Output of Image Code on Asp.net

From:Open-source projectsCrab: chinasaas Sample ApplicationCrab Introduction

The workflow is displayed on the web page, and crab creates a workflowimage. aspx web page (actually a dynamic image). In page_load, the image is sent back to the browser to display the workflow page customizeworkflow. aspx adds a Control to direct the SRC of the image control to workflowimage. aspx. The following code dynamically generates a workflow Image Using workflowimage. aspx:

Protected voidpage_load (Object sender, eventargs E)

{

Response. clearcontent ();

Response. contenttype = "image/PNG ";

Byte [] binaries = workflowproxy. getworflowdefinitiongraphic (0 );

If (binaries! = NULL & binaries. length! = 0)

{

Response. addheader ("Content-Length", binaries. length. tostring ());

Response. binarywrite (binaries );

}

Else

{

Response. addheader ("Content-Length", "0 ");

}

Response. Flush ();

Response. End ();

}

Create Delegation