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Hi everyone,
Problem: Not able to initialize or set the selected index of a combobox after adding a datasource.
Situation: a combobox set on a usercontrol. The user control is set onto a form. The initialization or resetting of the selected index occurs within the load function of the usercontrol. I can reset the selected index on load if the code is within the form load function, but once I move the code to the usercontrol load function I cannot reset the index until another event is fired.
Tried: I have tried to set the selected index to -1 twice, I have read that the .net comobox has that quirk in it.
Code:
Private Sub UserControl1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Call loadData()
Call Me.combobox1.selectedIndex = -1
Call Me.combobox1.selectedIndex = -1
End Sub
Does anyone out there know why this occurs and how I can solve this problem? or maybe a url/link to a solution to this problem? Thank you for looking at the post and all your help everyone.
eatwork
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Can some one help me? I just migrated an App in 2003 to 2005 but I used Hash method to encrypt and decrypt a value but in VS 2005 I didn't give the same result as in VS 2003 is written in C#
It's suppose to send a string and give me numeric value back but I run it and it's not the same value in the app made in 2003 that in 2005
Israel
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You used what to encrypt your string? 
That wasn't a good idea. You just found out why.
What's wrong with using the encryption classes built into the .NET Framework? They follow standards-based encryption algorithms and work the same from .NET version to .NET version.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I've created a Crystal report which connects to an Access database to get its data. I have a Crystal report viewer control on my VB form to view the report. When I run the app on another computer and try to view the report a database login screen comes up. The screen has the wrong file path to the database it is trying to connect to. Typing in the right path makes it work but how can I have it automatically know what the correct file path is?
Thanks
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Are you giving the COMPLETE path to the viewer when you launch it from your code?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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If you mean the complete path to the viewer DataSource then yes I do. (I want to make the path a variable instead). But anyhow this path is not the same path that is displayed in the Crystal Database login screen.
I think it finds the report file but it cannot find the Database file so the login in screen comes up. How can I supply Crystal Reports the location to the runtime database file instead of the development database file (My development database path and file name seems to be hard coded into my release version of the software).
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Hey anyone here use the Janus controls? I am haveing a problem when trying to retrieve data from the data source. In short it reads them backwards. For example:
------------------------------
FirstName| LastName| Address |
------------------------------
FName1 | LName1 | SomeAdr1|
FName2 | LName2 | SomeAdr2|
FName3 | LName3 | SomeAdr3|
When retrieving the data after a mouse down say
Dim theData as DataRow = MyDS.Tables(0).Rows(Grid.Row())
Say the Row = 0 then i get: FName3 | LName3 | SomeAdr3|
Row = 1: FName2 | LName2 | SomeAdr2|
Row = 2: FName1 | LName1 | SomeAdr1|
I turned off the auto sorting but keep having this issue...Any sugestions?
Pablo
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Your best bet would be the support forums on www.janussys.com.
It's very unlikely that someone who has used the controls your talking about will see the this post before it falls off the bottom of the screen.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thanks for the link
Pablo
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I Really need some help and i mean REALLY.
I was looking at Barathons (SP?) Login thing, and my boss asked me to make him an Admin Panel Program with links to:
JETShop Shop Admin
JETShop Site
Lightstone Admin Panel
Email link:ilikeflyingdaggers@hotmail.co.uk
-Thanks in Advance Guys
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And?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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well, does anyone have any files i could mod, because he gave it to me today, just boxed
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Not gonna happen. That's not how this site works.
We'll help you with YOUR code, not turn over a complete module for you to modify. We're not in the business of saving peoples asses.
If you want something written for you, to your specifications, try http://www.rentacoder.com[^]. Get your checkbook out...
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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What are you waiting for?
GIVE HIM THE CODE! IMMEDIATELY!!!
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Excellent VB.NET info resouorce
http://it-pedia.com/vb-dotnet1.htm
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Hi,
I am working with vb6 and owc11 and I get the following error when i try to call ExportPicture method from Chartspace:
"Run time error '430'.Class does not support Automation or does not support expexted interface".
I've tried also in VB.NET and I get also error.
I have installed owc11.dll 11.0.65555. Maybe there is an older version of the owc11 that is better than this, a link somtehing...
Thank you
George
-- modified at 11:05 Monday 5th December, 2005
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I have a one dimension array of, for example, 20 elements. Is there any other way (than getting value by value) to copy the elemets 5 to 9 to a new array of 5 elements?
Thansk in advance,
Marc Soleda
... she said you are the perfect stranger she said baby let's keep it like this... Dire Straits
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Have you looked at Array.Copy()[^]
My: Blog | Photos
"Man who stand on hill with mouth open will wait long time for roast duck to drop in." -- Confucious
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Ooops !! I missed to tell you that's for VB6.
Thanks anyway
... she said you are the perfect stranger she said baby let's keep it like this... Dire Straits
-- modified at 10:53 Monday 5th December, 2005
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IIRC, there is no function to do that in VB6.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Perhaps you shoud take a look to the API
Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
You can use it like this:
Dim xData(20) as Integer
Dim xDataNew(4) as Integer
Call CopyMemory(xDataNew(0), xData(10), 8)
Hope this is usefull for you.
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Very usefull, thank you very much!!
Marc Soleda
... she said you are the perfect stranger she said baby let's keep it like this... Dire Straits
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Hello, the .Net-Framework produces an error that I don't knowing how to solve the problem.
I'm developing a UserControl (UserControl1). It has the following Property:
Dim _test As New PropertyClass(Me)<br />
<br />
<<DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _<br />
Public ReadOnly Property TestProp() As PropertyClass<br />
Get<br />
Return _test<br />
End Get<br />
End Property
The PropertyClass I have shorten to the following:
<<TypeConverter(GetType(ExpandableObjectConverter)), Serializable()> _<br />
Public Class PropertyClass<br />
<br />
Private _Parent As UserControl<br />
<br />
Public Sub New(ByVal Parent As UserControl)<br />
_Parent = Parent<br />
End Sub<br />
<br />
End Class
(Normaly there are some Properties and Methods in the PropertyClass).
If I add my Control to a form, switch a property-value and then change the view to the form-code an error occurs:
The Codegeneration for the Property 'TestProp' failures. Error: 'The Type UserControl1 in Assembly ... is not signed as serialisable.'
I work with a german version of .net, I hope the translation is understandable.
Why .net wants to serialise the UserControl1, it isn't a public property, only a private variable... If I remove the TypeConverter the Problem does not occur (but I need it  . In another case my PropertyClass has the following Property:
<<Browsable(False), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)> _<br />
Public ReadOnly Property Parent() As UserControl1<br />
Get<br />
Return _Parent<br />
End Get<br />
End Property
In this case the same error occurs. Has anybody a solution?
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In Visual Basic 6 there was the easy possibility to set time and date of a computer by using following commands:
Time = TimeSerial(CInt(txtStunde.Text), CInt(txtMinute.Text), CInt(txtSekunde.Text))
Date = DateSerial(CInt(txtJahr.Text), CInt(txtMonat.Text), CInt(txtTag.Text))
Is there any similar and easy code in VB.NET
Thank you in advance!!!!!
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