C # picturebox load the image and display the progress bar

 

I have not tried to attach a network image when I used picturebox of winform. Code The loadasync method can be used to load images asynchronously, And the loadprogresschanged event can be used to get the current loading progress.

Put a picturebox control, a button, a progress bar control on the form, and use a label to display the current progress percentage. The Code is as follows:

Private Void Button#click ( Object Sender, eventargs E)

{
Try
{

Picturebox1.waitonload = False ;
Picturebox1.loadasync (
" Http://hiphotos.baidu.com/18826860/pic/item/c68220d54518d3ef562c841c.jpg " );

}
Catch
{

MessageBox. Show ( " Network Connection Failed " );
}
}

Add the loadprogresschanged event to picturebox, And the loadasync method will trigger this event. The current progress can be obtained from E. progresspercentage.

Private VoidPicturebox1_loadprogresschanged (Object 
Sender, system. componentmodel. progresschangedeventargs
E)
{
Progressbar1.value = E. progresspercentage;
Label1.text =
E. progresspercentage. tostring () +"%";
}