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WaitCursor / hourglass in custom printpreview dialogI have created a simple custom PrintPreviewDialog consisting of a simple standard PrintPreviewControl (.NET 1.1) on a WindowsForm with a few buttons (for printing, zooming, etc.). It is working fine, except for that I cannot figure out how display the waitcursor / hourglass while the preview is preparing to show the document *and then go back to the default cursor when the document is displayed*. Turning on the waitcursor is easy, but what event should I hook into to turn it off?? What happens when I preview a document that is about 50 pages long is that you get the blank form on the screen and then nothing happens for maybe 40 seconds and then you get a "Generating Preview" message and then the document is displayed. It is during the initial 40 seconds that I need an hourglass or something to let the users know that something is happening in the background. Here are some snippets of what I am doing currently: // Constructor: public PreviewDialog(System.Drawing.Printing.PrintDocument printDocument, int zoom) { InitializeComponent(); _printDocument = printDocument; _zoom = zoom; } private void PreviewDialog_Load(object sender, System.EventArgs e) { this.Cursor = Cursors.WaitCursor; Initialize(); //this.Cursor = Cursors.Default; // This gets hit instantly, so you never see an hourglass. } private void Initialize() { uxPrintPreview.Anchor = AnchorStyles.Bottom | AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right; uxPrintPreview.Zoom = zoom; this.WindowState = FormWindowState.Maximized; uxPrintPreview.Document = printDocument1 = printDocument; } // The calling code: using (PreviewDialog form = new PreviewDialog(c1Report1.Document)) { form.ShowDialog(this); } If there was an event like LastPageFinished or DocumentRendered or similar in the PrintPreviewControl, I would be home free, but I cannot find anything like that. Any help on this would be greatly appreciated. Thanks, Lars > You could try> private void PreviewDialog_Load(object sender, System.EventArgs e) > { > this.Cursor = Cursors.WaitCursor; > Initialize(); > //this.Cursor = Cursors.Default; // This gets hit instantly, so you > never see an hourglass. > } Cursor.Current = Cursors.WaitCursor; Seems to be ok when I tried it.
Show quote
>> private void PreviewDialog_Load(object sender, System.EventArgs e) No, that does not make a difference. The problem is not to change to a >> { >> this.Cursor = Cursors.WaitCursor; >> Initialize(); >> //this.Cursor = Cursors.Default; // This gets hit instantly, so you >> never see an hourglass. >> } > > You could try > > Cursor.Current = Cursors.WaitCursor; > > Seems to be ok when I tried it. WaitCursor, but rather to know when to change it back to a default cursor. For example, in my snippet above, I commented out "this.Cursor = Cursors.Default" since it gets hit almost instantly (way before the page is rendered), so you never see an hourglass. using (PreviewDialog form = new PreviewDialog(c1Report1.Document))
{ this.Cursor = Cursors.WaitCursor; form.ShowDialog(this); this.Cursor = Cursors.Default; } -- Show quoteDerek Davis ddavi***@gmail.com "Lars" <nob***@dev.null> wrote in message news:11qbaldcfhlic9f@corp.supernews.com... > Hi, > > I have created a simple custom PrintPreviewDialog consisting of a simple > standard PrintPreviewControl (.NET 1.1) on a WindowsForm with a few > buttons (for printing, zooming, etc.). It is working fine, except for > that I cannot figure out how display the waitcursor / hourglass while the > preview is preparing to show the document *and then go back to the default > cursor when the document is displayed*. Turning on the waitcursor is > easy, but what event should I hook into to turn it off?? > > What happens when I preview a document that is about 50 pages long is that > you get the blank form on the screen and then nothing happens for maybe 40 > seconds and then you get a "Generating Preview" message and then the > document is displayed. It is during the initial 40 seconds that I need an > hourglass or something to let the users know that something is happening > in the background. > > Here are some snippets of what I am doing currently: > > // Constructor: > public PreviewDialog(System.Drawing.Printing.PrintDocument printDocument, > int zoom) > { > InitializeComponent(); > _printDocument = printDocument; > _zoom = zoom; > } > > private void PreviewDialog_Load(object sender, System.EventArgs e) > { > this.Cursor = Cursors.WaitCursor; > Initialize(); > //this.Cursor = Cursors.Default; // This gets hit instantly, so you > never see an hourglass. > } > > private void Initialize() > { > uxPrintPreview.Anchor = AnchorStyles.Bottom | AnchorStyles.Top | > AnchorStyles.Left | AnchorStyles.Right; > uxPrintPreview.Zoom = zoom; > this.WindowState = FormWindowState.Maximized; > uxPrintPreview.Document = printDocument1 = printDocument; > } > > // The calling code: > using (PreviewDialog form = new PreviewDialog(c1Report1.Document)) > { > form.ShowDialog(this); > } > > If there was an event like LastPageFinished or DocumentRendered or similar > in the PrintPreviewControl, I would be home free, but I cannot find > anything like that. > > Any help on this would be greatly appreciated. > > Thanks, > Lars > > > > > > > "carion1" <ddavis76 _at_ gmail _dot_ com> wrote in message If you read my post again, you'll see that I intentionally commented out news:e7u7UGOBGHA.3984@TK2MSFTNGP14.phx.gbl... > using (PreviewDialog form = new PreviewDialog(c1Report1.Document)) > { > this.Cursor = Cursors.WaitCursor; > form.ShowDialog(this); > this.Cursor = Cursors.Default; > } > > -- > > Derek Davis > ddavi***@gmail.com "this.Cursor = Cursors.Default;" since it does not work were it is. That line gets hit almost instantly (way before the page is rendered), so you never see an hourglass. What I am looking for is a a place to put that line so that it gets hit AFTER the delay that takes place (while the preview control is preparing the document to be viewed, or whatever it is doing). In other words: before calling the preview control, I want to turn on the hourglass and when the document is displayed in the preview I want to turn off the hourglass. Lars The code I posted was the "calling" code. Could move the Cursor changes
outside of the using statement if you like. -- Show quoteDerek Davis ddavi***@gmail.com "Lars" <nob***@dev.null> wrote in message news:11qeag983p5d962@corp.supernews.com... > > "carion1" <ddavis76 _at_ gmail _dot_ com> wrote in message > news:e7u7UGOBGHA.3984@TK2MSFTNGP14.phx.gbl... >> using (PreviewDialog form = new PreviewDialog(c1Report1.Document)) >> { >> this.Cursor = Cursors.WaitCursor; >> form.ShowDialog(this); >> this.Cursor = Cursors.Default; >> } >> >> -- >> >> Derek Davis >> ddavi***@gmail.com > > If you read my post again, you'll see that I intentionally commented out > "this.Cursor = Cursors.Default;" since it does not work were it is. That > line gets hit almost instantly (way before the page is rendered), so you > never see an hourglass. What I am looking for is a a place to put that > line so that it gets hit AFTER the delay that takes place (while the > preview control is preparing the document to be viewed, or whatever it is > doing). In other words: before calling the preview control, I want to turn > on the hourglass and when the document is displayed in the preview I want > to turn off the hourglass. > > Lars > "carion1" <ddavis76 _at_ gmail _dot_ com> wrote in message I understand. The problem with that approach is that ShowDialog() does not news:urcPq9OBGHA.3536@TK2MSFTNGP11.phx.gbl... > The code I posted was the "calling" code. Could move the Cursor changes > outside of the using statement if you like. return until the preview window is closed. So even after the document is rendered and displayed, the cursor remains an hourglass. Lars |
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