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Does anyone out there have a VB.NET code sample that allows me to modify WMA tags (WMAID3Tag, e.g., Title, Artist, Genre, etc.) and save them back into the WMA file? I've found plenty of samples of code that reads these tags, but none that write changes back to the file.
Thanks,
Alan
alanbrobst@comcast.net
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Hi,
I am upgrading an ms access application into .net2005.
The problem now is that one of the report from the current access
application is exported into .snp file(snapshot),
which is currently not supported by .net only (xls and pdf)
Does anybody have an idea on how I can export my report in vb.net into
snapshot format? Your idea will be much appreciated. Many thanks.
My second option here is to create a macro in access that will be called by my vb application to export the report to snapshot format. I will create a temp table in access to receive the data to be converted.
The problem is I do not know how to do it.
Does anybody knows how?
Thanks in advance..
best regards,
king
myKing
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Help!
Have searched the web to no avail for a solution to this issue. There seem to be a few people having the same problem, but none of the suggested solutions seem to work for me 
Have been forwarded code and added it to an existing solution (3 projects), but the original(?) doesn't seem to update any changes (including commenting) made in the code. When debugging the IDE steps thru code i've commented. It was looking for the (non existant on my machine) file path to classes etc, but have deleted any references to them, and have no idea where to go from here.
Thanx in advance to anyone who has successfully resolved this and can help out.
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If you're building a release version, the debug version won't update. If you've added a reference to the release version to your project, building the debug version will not update that dll for debugging.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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hello,
I am Student. I have Problem. I make a Project In Vb.net2005 And used Sql server2000 database.
when I run my project and Display a report with the help of cristal report.
but when run my project and i display a report then a sql server2000 username and password is display.
please help me that this username and password of sql server2000 in not coming at run time when I open the report.
servername=nitin
username=sa
password=sa
nitin
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Hi Nitin
what is the connection type which u are using...
If u are using a connection string then u can specify the user name and password in it... Open the connection object once and use throughout
Good luck
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hi
i have developed my application in vb.net2005 & inbuilt crystal report.
i have taken one maskeditbox with 'shortdatetime' data type & in database - sql server2005 there is also datatype is 'datetime'.but after executing application following error occured -
error - unable to cast object of type 'system.string' to type
'system.IFormatProvider'
my namespaces are -
imports system.data
imports system.data.client
sql_str = " insert into abc(mdate2,itemcode)(select mdate2,itemcode from xyz
where mdate2 = " & " " & convert.date(me.maskedbox1.text) & " )"
my stored date format is 'dd/MM/yyyy' with time 00:00:00. but i do not want this time.what i do ? plz. help me.
i want only date in dd/MM/yyyy format without time and datatype 'datetime' using maskeditbox . how can i do calculation on date suggest me code with sample.
Thanks
bye
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You know if you used parameterised queries you wouldn't have to worry about converting date formats and you would improve the security between your application and the database at the same time as you reduce the possibility of SQL Injection Attacks.
Please read SQL Injection Attacks and Tips on How To Prevent Them[^]
Upcoming FREE developer events:
* Developer! Developer! Developer! 6
* Developer Day Scotland
My website
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I cant work out how to get my urlbox to update when clicking a link that takes you to another page/site.
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What is a URL box ? The browser control has an event that fires when navigation ends, you can get the current URL from the control in that event.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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I have a text box that tells the AxSHDocVw.AxWebBrowser what page to display but when you click a link the text in the text box stays the same and I want it to display the current page.
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 hello friends
i need help in crystal report 8.5 used in vb6. i have made a application that runs on lan
i have installed it on the server there the crystal report works but on the client machine it doesnt work.
it gives the error pysical databse not found ..
i need to know wether crystal report 8.5 works on lan or not.
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definetly it works on lan
pl check your connection use in crystal reports.
rmshah
Sr. Developer
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Hi all,
I'm fairly new to the .NET platform. I'm using VS 2005 VB.NET (v2.0) to build a non server, non web based GUI to allow a user to view and edit Excel files within a DataGridView (among other functions for this app).
My question is, how do I utilize 'Move Up' and 'Move Down' buttons that the user could use to move a selected row up or down within the datagridview dataset imported from the Excel sheet? Ultimately, the user will be able to save the 'moved' rows (or added/deleted rows) back into the original Excel sheet. For now, I'd just like to be able to get the Move Up/Down feature working.
What I'd like to find is a tutorial on how to do this in .NET 2.0 (i.e. not VB 6). Any suggestions?
Thanks!
-- modified at 11:37 Tuesday 20th November, 2007
Anyone?
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<br />
'MsgBox("Row number is " & dgvEmployee.CurrentCell.RowIndex)<br />
'MsgBox("Row number is " & dgvEmployee.CurrentRow.Index)<br />
'MsgBox("Column Count is " & cC)<br />
<br />
Dim cC As Integer<br />
cC = (dgvEmployee.Columns.Count - 1)<br />
<br />
Dim bm As Windows.Forms.BindingManagerBase = dgvEmployee.BindingContext( _<br />
dgvEmployee.DataSource, dgvEmployee.DataMember)<br />
<br />
Dim bm2 As Windows.Forms.BindingManagerBase = dgvEmployee.BindingContext( _<br />
dgvEmployee.DataSource, dgvEmployee.DataMember)<br />
'HOW TO GET PREV ROW?<br />
<br />
Dim dr As DataRow = CType(bm.Current, DataRowView).Row<br />
Dim dr2 As DataRow = CType(bm.Current, DataRowView).Row<br />
<br />
Dim x As Integer<br />
Dim Buffer As New System.Text.StringBuilder<br />
<br />
For x = 0 To cC<br />
Buffer.Append(dr(x) & " ")<br />
Next<br />
<br />
Dim theCurrentRow As String<br />
theCurrentRow = Buffer.ToString()<br />
<br />
Buffer = Nothing<br />
<br />
<br />
Dim y As Integer<br />
For y = 0 To cC<br />
Buffer.Append(dr2(y) & "")<br />
Next<br />
<br />
Dim thePreviousRow As String<br />
thePreviousRow = Buffer.ToString()
It works for the current row selected.
How do I find the previous row? I tried getting dr2 to work like dr by pointing to -1, etc...but can't get it to work.
Any suggestions?
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I encountered the problem when i used String.Formate() with the string containing the { character. Following is the sample code which generates the error:
Test = "This is test {0} {"<br />
Test2 = String.Format(Test," for string.format()")
The line is bold throws exception Input string was not in a correct format.
Is there any solution available for this?
Regards
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Hidden in the MSDN documentation is the following:
"Opening and closing braces are interpreted as starting and ending a format item.
Consequently, you must use an escape sequence to display a literal opening brace or closing
brace. Specify two opening braces ("{{") in the fixed text to display one opening brace
("{"), or two closing braces ("}}") to display one closing brace ("}"). Braces in a format
item are interpreted sequentially in the order they are encountered. Interpreting nested
braces is not supported. "
Luc Pattyn [Forum Guidelines] [My Articles]
this months tips:
- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use PRE tags to preserve formatting when showing multi-line code snippets
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Thank you Luc Pattyn,
Sorry for the late reply. Thank you very much again. Yes it is not mentioned in MSDN. But it works.
Regards
Aftab Ahmed
.NET Developer
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Aftab Sindhi wrote: Yes it is not mentioned in MSDN.
This is the source.[^]
Luc Pattyn [Forum Guidelines] [My Articles]
this months tips:
- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use PRE tags to preserve formatting when showing multi-line code snippets
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I really hope someone can shed some light on my problem. I have run out of ideas.
I have written a calculator application in VB.NET using VS2005. It uses an LCD font to display the result of calculations. I followed instructions at http://www.bobpowell.net/tipstricks.htm to created a private font collection with the LCD font as an embedded resource. On the form load I assign the font to the label control which displays the calculated results.
I created a deployment project and built an msi for my calculator. I have installed this calculator on 4 machines. On 2 of them the LCD font displays as required (as it does when debugging in VS 2005). On the other 2 it displays incorrect characters in some undeterminable font.
I have checked the version of .NET on the target machines and there doesnt seem to be any pattern. I also wondered if it was something to do with the version of windows installer (setup.exe) but that doesnt seem to be the case either.
Can anyone suggest any other avenue of enquiry please ? I feel really stuck
with this one.
TIA
Bob
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On a a few related notes...
- Is there any nice way to use bitmap fonts in situations where they would be appropriate, either for specialized display purposes or for showing data very small? A 4x8 font isn't going to be terribly readable at normal screen resolutions, but if it's necessary to show a huge amount of data (e.g. debug information) such a font can be a lot more readable than any TrueType font I know when displayed t similar size.
- Are there any fonts which include multiple styles of type in different character ranges. For example, 32-255=normal; 256-511=IBM character set, normal (spare copy, but adds all of 0-31); 512-768=IBM character set, reverse; 768-1023=IBM character set bold; etc. Would there be any practical means to generate such a thing programatically?
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Hello!
Thanks in advance to anyone that may post a response to this question.
I am trying to figure out how to do the following: Build a DLL in Fortran-PowerStation4.0 (FORTRAN 90) and then call it from Visual Basic 2005 Express Edition.
I have created the FORTRAN DLL and I am able to call it from Visual Basic. Here it is the code that I wrote.
The Fortran dll:
<br />
<br />
SUBROUTINE square(a)<br />
!MS$ATTRIBUTES DLLEXPORT, ALIAS:'Square'::Square<br />
real*4 a<br />
a = a*a<br />
END SUBROUTINE<br />
<br />
The Visual Basic code:
<br />
<br />
Public Class FortranLab<br />
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click<br />
Dim a As Single<br />
a = 4<br />
Call Square(a)<br />
TextBox1.Text = Str$(a) + vbLf + TextBox1.Text<br />
End Sub<br />
End Class<br />
<br />
<br />
Module Global1<br />
Declare Sub Square Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByVal a As Single)<br />
End Module<br />
<br />
THE PROBLEM!
However, the code fails on the call of Square(a), and gives the following error…
“Attempted to read or write protected memory. This is often an indication that other memory is corrupt.”
I have tried different data, e.g. using only integers, integer and single, ect… But I get always the same error. I have this idea that the error comes from an incompatibility of data types between Fortran and VB. I have looked for documentation on how to best interface data types between Fortran and VB …. without luck.
Stack trace for this error:
System.AccessViolationException was unhandled
Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
Source="FortranLab"
StackTrace:
at WindowsApplication1.Global1.Square(Single a)
at WindowsApplication1.FortranLab.Button1_Click(Object sender, EventArgs e) in C:\FortranVB\VB-FORT.vb:line 10
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(ApplicationContext context)
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
at WindowsApplication1.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
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Hi,
I have no experience with the combination of VB+Fortran, but from what you show I would
suspect a problem in the argument passing; AccessViolationException typically occurs when
a pointer is expected and an illegal address is obtained.
Hence you should try to define square as accepting abyref argument, not a byval.
This also can be seen from the Fortran code itself: if you do "a=a*a" how would the
caller ever get the result, unless it is actually the address of a that gets exchanged?
Luc Pattyn [Forum Guidelines] [My Articles]
this months tips:
- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use PRE tags to preserve formatting when showing multi-line code snippets
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I think Luc has it nailed.
Module Global1
Declare Sub Square Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByVal a As Single)
End Module
should almost undoubtedly be
Module Global1
Declare Sub Square Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByRef a As Single)
End Module
since Fortran defaults to passing its args by reference rather than by value (as C does).
I'd like to know if this works for you. I need to convert some fortran functions into DLLs, and yours is a good template for me to use if it works.
Let us know.
David
---------
Empirical studies indicate that 20% of the people drink 80% of the beer. With C++ developers, the rule is that 80% of the developers understand at most 20% of the language. It is not the same 20% for different people, so don't count on them to understand each other's code.
http://yosefk.com/c++fqa/picture.html#fqa-6.6
---------
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Hi! Yes it works perfectly. However I have not been able to pass characters and strings from Fortran90 to VisualBasic6. No luck on this one.
Here it is an upgraded version of the code.
Fortran code
SUBROUTINE square(a)
!MS$ATTRIBUTES DLLEXPORT, ALIAS:'Square'::Square
real*4 a
a = a*a
END SUBROUTINE
SUBROUTINE caracter(s)
!MS$ATTRIBUTES DLLEXPORT, ALIAS:'CARACTER'::CARACTER
character(2) s
s = 'T'
END SUBROUTINE
SUBROUTINE arraytest(arr)
!MS$ATTRIBUTES DLLEXPORT, ALIAS:'ARRAYTEST'::ARRAYTEST
real*4 arr(3,7)
integer i,j
do i=1,3
do j=1,7
arr(i,j) = 11*i+j-1*i
end do
end do
END SUBROUTINE
SUBROUTINE Simarray(arrs)
!MS$ATTRIBUTES DLLEXPORT, ALIAS:'SIMARRAY'::SIMARRAY
real*4 arrs(10)
integer i
arrs(1)=1
do i=2,10
arrs(i) = arrs(i-1)+1
end do
END SUBROUTINE
Visual Basic code
Vb-Fort.vb
Public Class FortranLab
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As Single
a = 10
Call Square(a)
TextBox1.Text = Str$(a)
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim i, j As Integer
Static arr(0 To 3, 0 To 7) As Single
Call ARRAYTEST(arr(1, 1))
For i% = 1 To 3
For j% = 1 To 7
TextBox1.Text = Str$(arr(i%, j%)) + TextBox1.Text
Next j%
Next i%
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim i As Integer
Static arr(0 To 10) As Single
Call SIMARRAY(arr(1))
For i% = 1 To 10
TextBox1.Text = Str$(arr(i%)) + TextBox1.Text
Next i%
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
TextBox1.Text = " "
End Sub
End Class
Golobal1.bas
Module Global1
Declare Sub ARRAYTEST Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByRef MyArray As Single)
Declare Sub SIMARRAY Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByRef MyArray As Single)
Declare Sub Square Lib "c:\FORTDLL\Debug\FORTDLL.dll" (ByRef a As Single)
End Module
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