Printpreviewcontrol to print datagridview

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.NET4.5

Hello!!

If I use printpreviewdialog1.showdialog(), it works perfect. But if I use printpreviewdialog.show(), it shows empty.

Is anyone having the same issue or have an idea why it happens?

Thank you.

What I have tried:

I am using The DATAGRIDVIEWPRINTER CLASS.

Posted 1-Aug-23 17:00pm

Member 16041854

Updated 9-Aug-23 7:43am

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Andre Oosthuizen · Answer 1 · 2023-08-02T01:52:00

The reason why the 'printpreviewdialog1' shows up is because it is the named control derived from the actual control 'printpreviewdialog' Class - see full explanation and sample code - MS Learn | PrintPreviewDialog Class[^]

The object will be declared as such -

.NET

//Declare the dialog...
internal PrintPreviewDialog PrintPreviewDialog1;

The 'PrintPreviewDialog.ShowDialog()' method displays the print preview dialog as a modal dialog box. When you call 'ShowDialog()', it will block the execution of code until the dialog is closed by the user.

The 'PrintPreviewDialog.Show()' method displays the print preview dialog as a non-modal dialog box. When you call 'Show()', it will not block the execution of code, and your app continues to run while the print preview is open meaning that the code after the 'Show()' method will continue to execute without waiting for the user to close the preview.

When your 'PrintPreviewDialog.Show()' metod is showing an empty preview, it's possible that the code following the 'Show()' method might be modifying or refreshing the content of the print preview, causing it to appear empty.

Use the link above to use the proper methods and you should be fine.

Referring to the 'DataGridViewPrinter' Class, it seems you are making use of a created control done by one of our members Salan Alani. Read through his documentation properly as I think his methods might differ from what you are trying to do using a DataGrid - CodeProject Articles | The DataGridViewPrinter Class [^]

OriginalGriff · Answer 2 · 2023-08-01T18:18:00

We have no idea what the "DATAGRIDVIEWPRINTER" class is, or how it works: it is not a standard .NET class and we have no idea where you got it from, or how it works.
Moreover, we have no idea how you ar eusing is, since we can't see your screen, access your HDD, or read your mind - we only get exactly what you type to work with; we get no other context for your project.

So go back to where you got the class from and ask them: we can't help you!

FcoJimenez · Answer 3 · 2023-08-09T07:43:00

Thanks OriginalGriff and Andre for your help. I found the solution. It was something wrong in the document.printpage. I am working on a Cattle Managment Software, with a tab control.

tabpage 0 :
Home Page

tabpage 1 :
Cow Information (2 DatagridViews)

tabpage 2 :
Reports (2 DatagridViews)

tabpage 3 :
PrintPreview (1 printpreviewcontrol)

Inside the printpage event of the document I had :

Select case tabcontrol.selectedindex

case 1
"prints the cow information"

Case 2
"Prints the Report"

end select

tabcontrol.selectedindex = 3

So when runing it changed the tabpage before generating pages, and printpreviewcontrol showed empty.

I fixed it creating a varible integer

Dim PFORM as INTEGER

When tabpage 1 is focused PFORM = 1
tabpage 2 is focused PFORM = 2

document Printpage event

Select case PFORM

case 1
"prints the cow information"

Case 2 
"Prints the Report"

end select

tabcontrol.selectedindex = 3


Thank You Very much.

Printpreviewcontrol to print datagridview

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