I know how to export to pdf using Crystal Report, but I don't want to preset file path, I want users can choose file path (and file name) when clicking Export button.
Do you know how to do that ?
Thank you very much,
Tai
Prompting the user for a save location would be something you'd implement as part of your app - this related question provides some answers on how to do that. Then, you'd just supply the path from the dialog to the Crystal Reports export API so it saves to that location.
Here is a partial code in my project. I hope it helps.
Dim saveFileDialog1 As New SaveFileDialog()
'saveFileDialog1.InitialDirectory = My.Computer.FileSystem.CurrentDirectory
saveFileDialog1.Filter = "PDF files (*.PDF)|*.PDF"
saveFileDialog1.FilterIndex = 1
saveFileDialog1.RestoreDirectory = True
If saveFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
Try
'Here is where you write the file
Catch Ex As Exception
'MessageBox.Show("Cannot read file from disk. Original error: " & Ex.Message)
Finally
' Check this again, since we need to make sure we didn't throw an exception on open.
End Try
End If
Related
So I'm a bit stuck with my project, I am using Visual Studio and coding in Visual Basic, I am also using Microsoft Access with SQL if that helps at all.
What I need is to allow the user to select a document from an OpenFileDialog and to then save that document to the actual program so it is there when the program is next ran.
The following code is triggered on a button press, what I have so far is...
saveDocumentDialog.Filter = "Document Files|*.docx;*.doc;*.dot;*.txt;*.rtf;*.pdf;*.ppt;*.pptx;*.xls;*.xlsx"
saveDocumentDialog.FileName = "Untitled"
saveDocumentDialog.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.Desktop
saveDocumentDialog.ShowDialog()
If saveDocumentDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
fullFilename = saveDocumentDialog.FileName
End If
Using openDocumentDialog As New SaveFileDialog
Dim filename As String = IO.Path.GetFileName(fullFilename)
openDocumentDialog.FileName = "Untitled"
openDocumentDialog.InitialDirectory = My.Computer.FileSystem.SpecialDirectories.Desktop
openDocumentDialog.Title = "Select Save Location"
openDocumentDialog.Filter = "All Files (*.*)|*.*"
If openDocumentDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
Try
My.Computer.FileSystem.CopyFile(fullFilename, openDocumentDialog.FileName)
Catch ex As Exception
MessageBox.Show("Could not copy the file." & Environment.NewLine & ex.Message, "Error copying file.", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
End If
One way to do this is to designate a specific folder to the program(e.g. Public Documents), and save the files there and reload them from the folder when the program restarts. You could either hard code the path, or make a setting in the program for the user to specify a folder they would prefer.
Ok, so my code look like the following.
Dim file As System.IO.StreamWriter
file = My.Computer.FileSystem.OpenTextFileWriter("E:/Med/Dra.txt", False)
file.WriteLine(NameBasic)
file.WriteLine(LastBasic)
file.WriteLine(PhoneBasic)
file.Close();
All those are variables that I have set for text boxes. This is OnbuttonClick(...
Now for my onload I take the info out of the notepad, Here is the code,
Dim read As System.IO.StreamReader
read = My.Computer.FileSystem.OpenTextFileReader("E:/Med/Dra.txt")
lblNameBasic.Text = read.ReadLine
lblLastBasic.Text = read.ReadLine
lblPhoneBasic.Text = read.ReadLine
read.Close();
I have placed the notepad(txt file) inside a flashdrive folder named med
I got the saving info to work and load, so I took the flashdrive to another computer, I got this nasty error, talking about the System.IO and all this other stuff.
It then prompts me, would you like to continue with errors, or quit.
I click continue than all the saved data does not load. Am I doing something wrong here??
Also sorry for alot of questions today. (The .exe is in the flashdrive, med folder aswell).
First of all, your path is incorrect - E:/Med/Dra.txt should be E:\Med\Dra.txt. And here how you use open file dialog - this is just basis, you need to take care of error handling, etc.
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.InitialDirectory = "c:\"
openFileDialog1.Filter = "txt files (*.txt)|*.txt"
openFileDialog1.RestoreDirectory = True
If openFileDialog1.ShowDialog() = System.Windows.Forms.DialogResult.OK Then
Dim read As System.IO.StreamReader = My.Computer.FileSystem.OpenTextFileReader(openFileDialog1.FileName)
End If
I think, main reason why you had errors is because incorrect path. You can also check if path exists
If Not File.Exists("E:\Med\Dra.txt") Then
MessageBox.Show("There is no such file")
Exit Sub
End If
' Code to open non existing file will be skipped
I have Windows application written in VB 2010.Here, user may select any file from open dialog.So, I want to open the file in corresponding application.for example, suppose user selecting docx file then i have to open the file using msword,suppose,if it is a pdf file, then i have to open with adobe reader or available pdf reader(default application).
Is this possible to do?
Shell and the Windows API CreateProcess() are for starting executable files.
If you're loading a document/file then these are handled by ShellExecute() and can be initiated in .NET using the Process.UseShellExecute property:
Private Function ShellExecute(ByVal File As String) As Boolean
Dim myProcess As New Process
myProcess.StartInfo.FileName = File
myProcess.StartInfo.UseShellExecute = True
myProcess.StartInfo.RedirectStandardOutput = False
myProcess.Start()
myProcess.Dispose()
End Function
Taken from the #VB wiki.
Try this:
now with openfiledialog
Dim OpenFileDlg as new OpenFileDialog.
OpenFileDlg.FileName = "" ' Default file name
OpenFileDlg.DefaultExt = ".xlsx" ' Default file extension
OpenFileDlg.Filter = "Excel Documents (*.XLSX)|*.XLSX"
OpenFileDlg.Multiselect = True
OpenFileDlg.RestoreDirectory = True
' Show open file dialog box
Dim result? As Boolean = OpenFileDlg.ShowDialog()
' Process open file dialog box results
for each path in OpenFileDlg.Filenames
Try
System.Diagnostics.Process.Start(Path)
Catch ex As Exception
MsgBox("Unable to load the file. Maybe it was deleted?")
End Try
If result = True Then
' Open document
Else
Exit Sub
End If
next
This will work if the file is registered with the OS. Use Try catch because it can throw errors if the file is in use.
Edit: It uses always the default application.
We have to learn VB.NET for the semester, my experience lies mainly with C# - not that this should make a difference to this particular problem.
I've used just about the most simple way to save a file using the .NET framework, but Windows 7 won't let me save the file anywhere (or anywhere that I have found yet). Here is the code I am using to save a text file.
Dim dialog As FolderBrowserDialog = New FolderBrowserDialog()
Dim saveLocation As String = dialog.SelectedPath
... Build up output string ...
Try
' Try to write the file.
My.Computer.FileSystem.WriteAllText(saveLocation, output, False)
Catch PermissionEx As UnauthorizedAccessException
' We do not have permissions to save in this folder.
MessageBox.Show("Do not have permissions to save file to the folder specified. Please try saving somewhere different.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
Catch Ex As Exception
' Catch any exceptions that occured when trying to write the file.
MessageBox.Show("Writing the file was not successful.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
End Try
The problem is that this using this code throws an UnauthorizedAccessException no matter where I try to save the file. I've tried running the .exe file as administrator, and the IDE as administrator.
Is this just Windows 7 being overprotective? And if so, what can I do to solve this problem? The requirements state that I be able to save a file!
Thanks.
This code:
Dim dialog As FolderBrowserDialog = New FolderBrowserDialog()
Dim saveLocation As String = dialog.SelectedPath
Is giving you the location of a folder. Then you're trying to save a file with the same name as the folder. Instead, I assume you want to save a file inside that folder:
Dim saveLocation As String = dialog.SelectedPath
saveLocation = Path.Combine(saveLocation, "SomeFile.txt")
That will create a file called "SomeFile.txt" inside the selected folder.
Alternatively, instead of using FolderBrowserDialog to choose a folder, use SaveFileDialog to select the actual file instead.
I'm making a windows form.
Here is my current code:
I don't have any idea on how to link the open file dialog with the file that I am going to attach.
Try
With OpenFileDialog1
'OpenFileDialog1
.Filter = "Text files (*.txt)|*.txt|" & "All files|*.*"
If .ShowDialog() = DialogResult.OK Then
End If
End With
Catch
MsgBox("error occured!")
Something similar to..
Dim attach As MailAttachment = New MailAttachment(openFileDialog1.FileName)
Email.Attachments.Add(attach)