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Type: Posts; User: keystone_paul

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  1. Re: variable name for database column header

    When you deleted the first ' from the query you also deleted the space, therefore your SQL command will start with something like "SELECTMonday" rather than "SELECT Monday"
  2. VS 2005 Re: i have a quetion regarding with mysql to vb.net

    No you shouldn't have quotes around field names, just around strings.

    You should also be using parameters in your query rather than just inserting values from your textbox.
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    VS 2010 Re: Help, error after execution.

    I would strongly recommend setting Option Strict to on in your project settings. It may well throw up a number of errors immediately but once you've worked through them and corrected them your code...
  4. Re: variable name for database column header

    That SQL query is not going to return a value based on the contents of the variable Night because you are enclosing it in quote so it is going to be treated as a string literal. For example assume...
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    VS 2010 Re: Newest entered Unique ID in SQL

    Really?

    These threads seem to suggest it works OK with SQL Express 2005. Like I say I don't use SQL Express but it looks like it should work.
    ...
  6. VS 2010 Re: Download VS 2010 Expres Edition stand alone file

    You can download an ISO file which you'd need to burn to a CD or mount using a virtual drive program like MagicDrive.

    http://www.microsoft.com/visualstudio/en-us/products/2010-editions/express-iso
  7. VS 2005 Re: How can i disable all labels on my form?

    Its always helpful if you can say what the error(s) is.

    However... the controls collection doesn't just contain labels so when your loop encounters a control that isn't a label what do you think...
  8. VS 2008 Re: How to check if my application is already running?

    You shouldn't even need to write a single line of code if you are have "Enable Application Framework" set in your project's properties (which it is by default)

    If you go to your project's...
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    VS 2010 Re: Newest entered Unique ID in SQL

    Not 100% sure for SQL Express but you can query on the value @@IDENTITY which should return the last auto-incremented identity, ie create a command with the command text

    SELECT @@IDENTITY

    And...
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    VS 2010 Re: Selecting a Row (DataGridView)

    Row index is zero based so last row will be RowCount - 1
  11. Re: help me: error number of query values and destination fields are not the same

    I think you need to give a little more information for anyone to be able to help.
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    Re: .hdc error in VB2010

    The drawing and graphics system in .Net is entirely different to VB6. I'd say that trying to convert existing code line for line is not going to be an effective approach and you are better off trying...
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    VS 2010 Re: Inserting blank row to datagridview

    I'm not a big user of the datagridview but my perspective would be that the control is a view onto the underlying data in the database, and therefore your suggestion in post #3 - create a record in...
  14. Re: Excel SQL read and wirte to same line

    This


    If myDataReader.Read() Then
    While myDataReader.Read()

    is wrong also.. your IF statement will read the first record and you then immediately call Read again on the...
  15. Re: Excel SQL read and wirte to same line

    Why are you calling ExecuteNonQuery for a SELECT statement?
  16. Re: sql insert into access database requires colon

    You need an UPDATE Query, not an INSERT. Check out http://www.w3schools.com/sql/sql_update.asp

    You should also consider using parameters in your query rather than just appending values into the...
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    VS 2010 Re: Attach MDF file to client computer

    So... have you placed a breakpoint and stepped through your code?
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    VS 2010 Re: Attach MDF file to client computer

    OK so what appears to be happening in your verificare_locatie_baza_date routine is you open the connection and then you close it.

    Then you call the verificare_disponibilitate_utilizatori routine...
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    VS 2010 Re: Attach MDF file to client computer

    Hmm... didn't spot the additional code you've posted.
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    VS 2010 Re: Attach MDF file to client computer

    Like I say - have you put in a breakpoint and stepped through your code to check that any of this is actually running?

    I'm not sure why you call connectare_db twice in the sub...
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    VS 2010 Re: Attach MDF file to client computer

    Hmm.. I still don't see anything in the code you've posted that is attempting to ExecuteScalar against the connection. Can you indicate exactly where the code is breaking?

    I assume you've tried...
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    VS 2010 Re: Attach MDF file to client computer

    The thing is.. if that path is invalid or the file doesn't exist, you'd expect it to raise an exception and trigger the Catch block and display the error form, which the OP doesn't suggest is...
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    VS 2010 Re: Attach MDF file to client computer

    I can't imagine that you get that error message in the code that you've posted as you aren't calling ExecuteScalar anywhere - I'm guessing that you're showing us the code that tries to open the...
  24. VS 2008 Re: Events for an array of textboxes

    OK take a look at the example below :

    Public Class Form1

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    'First box
    Dim...
  25. VS 2008 Re: Events for an array of textboxes

    You can use the AddHandler method to hook up an event handler when you create the control.

    Check out the MSDN or take a look at this example : http://www.thescarms.com/dotnet/EventHandler.aspx
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    VS 2008 Re: Updating Access Database error

    You ought to be using parameterised queries for a number of reasons, including preventing SQL injection attacks, but it also helps prevent this kind of problem - you're getting mixed up with data...
  27. VS 2010 Re: Conversion from string “DESC” to type 'Double' is not valid.

    Can you indicate which line of code you're getting the error on.
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    VS 2010 Re: Login from text file?

    Presumably you've defined AllUsers and AllPasses as global variables as they aren't declared in your class (I hope you have Option Explicit on otherwise as per cicatrix's advice with Option Strict...
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    Re: Date Sync Alarm

    What I'm saying is having two things with an identical name in the same piece of code is A Bad Idea. The best outcome is that your code will be very confusing, the worst case is it won't work because...
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    Re: Date Sync Alarm

    Before you go any further you might want to look at your naming policy.

    You have a local variable with the same name as the procedure. That's got to be a source of confusion even if not the error....
  31. VS 2010 Re: Phantom nodes in a treeview

    Well... I've fixed it but I don't understand why its fixed.

    I've changed
    Public Sub UpdateRegionTree()

    tvwRegions.Nodes.Clear()
    tvwRegions.Nodes.Add("Root", "The World",...
  32. VS 2010 [RESOLVED] Phantom nodes in a treeview

    I'm pulling my hair out here - I must be doing something wrong but for the life of me I can't see what it is.

    I have a treeview that is populated with a hierarchical list of regions and locations....
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    Re: Template v UserControl

    'SOkay - I figured it out.

    A combination of the two approaches does the trick - using a DataTemplate to reference the user control.
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    [RESOLVED] Template v UserControl

    Hi - Still new to WPF and trying to get my head round the proper way of doing things.

    I want to create a listbox which displays a reasonably complex structure for each item. What I envisage is...
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    WPF : Binding not updating

    Very simple scenario : I have a user control which features a listbox, a textblock which reflects the selected item, and a button which should be enabled if there is a selection.

    The relevant part...
  36. Re: [RESOLVED] WPF - Binding a treeview to data objects

    Thanks jmcilhinney - that looks like it could be really useful. I've just had a quick play and I think it will make diagnosing issues a lot easier!
  37. Re: WPF - Binding a treeview to data objects

    Sorted. Had the HierarchicalItemTemplate in the wrong place (wasnt within an ItemTemplate element)

    I find WPF frustrating to debug - it seems that there is a lot less information fed back but I...
  38. Re: WPF - Binding a treeview to data objects

    Thanks jmcilhinney - thats actually a page that I've been trying to get my head around. Perhaps its because thats in C# which I don't have so much experience with, but I can't seem to relate that to...
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    VS 2010 Re: Sage project from VS 2010

    Hmm.. should you be using ODBC access or using the SDO interface? I work for Sage 50 R&D but not in the Accounts team but I'd have thought that you should be using Sage Data Objects and not ODBC....
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    VS 2010 Re: VB .NET 2010 .Show()

    Agree with pretty much all of whats said above.

    I mention my history because in the days (up to VB5?) default instances were the way of doing things, and so if the OP goes back to those days like...
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