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All,
Trying to serialize a data table for file storage in a simple window application. Is this possible and if it is can anyone point me in the direction of an example or help explain how I would go about coding it. I basically want the user to generate the table and be able to save and load it at a later stage.
The xml file will contain the data table info and further information not linked to the table.
I've only started looking at XML and while I believe I have grasped the basic concept there is a lot of info out there that is misleading.
Thanks for any help you can give.
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look into these 2 methods
datatable.ReadXml()
datatable.WriteXml()
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I have two combo boxes that have a parent child relationship. So when comboA changes comboB uses a new DataSource and the drop down values are updated. This works correctly, but now I am databinding the selectedvalues of each combo box to an object. Sometimes the databinding works correctly, meaning comboA is bound first then comboB updates with a new list and comboB's value is bound correctly. Sometimes comboB is bound before A which causes B to be empty after A populates itself.
How do you control the order in which values are bound to their controls? I have tried changing the order of the combo boxes on the form, but no luck. Anyone have any ideas?
Thanks
Mike Lasseter
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mr_lasseter wrote: How do you control the order in which values are bound to their controls?
By doing it in code instead of via the designer.
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Yeah, that's what I ended up doing, but no control through the designer?
Mike Lasseter
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I wouldn't expect so. The designer will always be a set of shortcuts for people who prefer not to have to write code. It can never be as flexible as actual programming.
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Hello,
Ok i have a question first on deployment. I have created a voice recording program using the directx.capture code i found on this site and wat im trying to do is that i want to add the directx setup along with the setup of my project. Wat exactly i want is that, when the user installs my project, it is also detected if directx is installed in the system and if not, the directx setup will automatically start and it will be installed.
How do i go about doing this???
Another thing i wanted to know is how its possible to determine if directx is installed when the code is running? like on a click on a button?
hope to get a reply soon
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You can work out if DX is installed via the registry. You have to ship the DX installer with your app, there's no merge module.
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Help, Im going insane.
Im using VS.Net 2005 and have come across a problem where properties I set dont seem to take affect.
For example:
I have a vb.net form, I set its size to 330, 500. Save the form. Close and reopen it, and the size has changed to 326, 497.
Ive done it 20 times. Even rebooted several times.
The form isnt locked.
The file is writeable.
Infact, the actual size in the designer does even match, in there it says 324, 469.
So I manually change that value to 330, 500. Save, close and reopen. Now my form has grown to 332, 528!!
Here's what the designer says:
<br />
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)<br />
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font<br />
Me.BackColor = System.Drawing.SystemColors.Control<br />
Me.ClientSize = New System.Drawing.Size(324, 469)<br />
As you can see, nothing fancy at all.
I changed the colour to bright red. saved, closed, reopened. The form was still bright red.
Has anyone ever seen this happen before?
Not happening anywhere else, other forms seem to be fine.
However it has reminded me of a problem last week, where I had a splitter on a form, which I moved, and later noticed that it had repositioned itself.
Im lost. And slowly going crazy! Please help!!
Mark
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Do you set it in the designer, or in code ? If in code, before or after the initialiseComponent call ?
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No, in designer.
Literally just opening a form in designer mode, changing the size in the properties window.
Saving and closing.
When I reopen it, the size has reverted back.
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If i have a label on a form, how can i code it so the background colour is transparrant @ runtime ?
I really do need help..... all this computer stuff is way over my head !!
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Me.Label1.BackColor = System.Drawing.Color.Transparent
Tip:
whenever you change a controls properties from their default in the design mode, the change is added to the form's designer for that control. so you if you put a label on your form and change it's background color, go look at the form designer and see how the ide did that. then use the same command at runtime.
Nathan
-- modified at 13:52 Tuesday 14th November, 2006
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Hi Friend
I really appreciate your assistance and i really like your Golden tip. Gooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood work 
Regards
Syed Shahid Hussain
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Greetings All:
The issue is that when I execute the Fill method during a button's onClick event, it works fine. But when the Fill method is executed when a boolean propery is updated, the code executes but never populates the binding navigator.
Here's the code snippets in question:
Here's what works:
Private Sub FillToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FillToolStripButton.Click <br />
Try <br />
Me.SpEDMS_EnumNIOSHByStudyTableAdapter.Fill(Me.Dataset_frmPerson_NIOSH.spEDMS_EnumNIOSHByStudy, New System.Nullable(Of Integer)(CType(glStudyId, Integer))) <br />
Catch ex As System.Exception <br />
System.Windows.Forms.MessageBox.Show(ex.Message) <br />
End Try <br />
End Sub
Here's the same code in the 'propery set' that executes but the navigator never shows any data
Private _QueryNIOSH As Boolean <br />
Public Property QueryNIOSH() As Boolean <br />
Get <br />
Return _QueryNIOSH <br />
End Get <br />
Set(ByVal value As Boolean) <br />
_QueryNIOSH = value <br />
If value Then <br />
Try <br />
Me.SpEDMS_EnumNIOSHByStudyTableAdapter.Fill(Me.Dataset_frmPerson_NIOSH.spEDMS_EnumNIOSHByStudy, New System.Nullable(Of Integer)(CType(glStudyId, Integer))) <br />
Catch ex As System.Exception <br />
System.Windows.Forms.MessageBox.Show(ex.Message) <br />
End Try <br />
End If <br />
End Set <br />
End Property
Why does it work in one part of the form but not another? Any ideas?
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Is there okay for me to use VB6 script in VB.Net?
Do I need to change the language of my program?
Thank you
SaM
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I guess the question is "is it ok with who". if go through the conversion wizard vb.net will tell you what's not compatible and force you to find the equivalent code.
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I've been on the MSDN and it has example code on how to save an image to jpg format, they say its compatible in the Compact Framework 2 but it doesn't seem to work. Here is my Code:
Dim img As Bitmap
img = New Bitmap(PictureBox1.Image)
img.Save("Bob.jpg", ImageFormat.Jpeg)
The PictureBox1 contral has a picture already. if I try save it as a BMP there is no problem. but to any other format it system returns a nonreferenced Exception.
Any Help would be greatly appreciated.
Thank you
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I m Developing an Ftp appplication which Uploadfiles .
I got a problem that when files r uploading ,when internet connection fail's
application got hanged for few mins.(i worte that if internet connetion failed than restart. even though appliction gets hanged and restarted for few mins)
how to solve.Why it is Hanging?
Pls Help me.
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Are you using a Try Catch statement to upload your files?
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no i m developing in vb6.0 and not using try catch
tx for u r reply but pls help me
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no i m developing in vb6.0 and not using try catch
tx for u r reply but pls help me
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hi every body,
I am saleh from jordan, and i try to run exe file from an windows service,
and i try to use shell command and it is work but open the file as service
(hidden) and i want it shown for user.
Thanks
Eng.Saleh Alsaleh E-tech-Systems
www.etech-systems.com
ssaleh@etech-systems.com
Best Regards,
Saleh Al-Saleh
Software Engineer
MCSD.NET
------------------------------------------------
e-Tech Systems
Mobile +962 7 88551452
Office +962 6 5152172 Ext. 248
Fax +952 6 5160725
E-mail Ssaleh@etech-systems.com
Web www.etech-systems.com
------------------------------------------------
Thinking PAPERLESS, Think e-Tech
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Try this:
Shell("C:\Path\File.exe", AppWinStyle.NormalFocus)
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Hi,
I've been trying to set security password on a existing excel, and been trying these codes:
Im Using COM for Excel 5.0
Public myExcel As Excel.Application
Public myBook As Excel.Workbook
Public mySheet As Excel.Worksheet
myExcel = CreateObject("Excel.Application")
xlsFilename = "C:\samp.xls"
myBook = myExcel.Workbooks.open(xlsFilename)
myBook.SaveAs(xlsFilename, password:=txt_password.Text)
error that i'm getting is "Member not found" and points
to
myBook = myExcel.Workbooks.open(xlsFilename)
when i try to look at the intellisense after workbooks. the only thing that appears
is Gettype.
Any other approach? or recommendation for this would be appreciated.
Thanks.
-::maximus::-
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