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VB 6.0
I'm trying to create datagrid type control (5 rows 10 cols) that is connected to an access database table. The data is being pulled from several different tables to feed the main table. A combo box is used to query the data from the different tables.
i.e.
Col 1: plain text, user entry
Col 2: combo box tied to table (user list)
col 3: combo box tied to table (state)
col 4: checkbox weither is active or not
col 5: another combo box from another table
etc.
Data grid may not be the right thing to do. So far I haven't found any reference to this except in vb.net (can't get pass the database connections It's ok if I'm using 1 table with 6 fields). I can creat this form in MS Access but how do I recreat it in VB6.0?
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Hi could anyone give me a suggestion or provide any advice on how to learn assebly programming language from the beginning in effective way???
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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If you're jumping from VB to assembler, I suggest you may well need an intermediate step. You've got my vote for confidence tho.
Microsoft used to publish an excellent book on the subject, I don't know if it's still around, but it's worth having a look on Amazon and also ebay. Sorry, I forget the title, but if you google Microsoft Press assembler, I'm sure you'll find it.
Christian
I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer
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May be this is the book[^] that you want to say???
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Nope. That's the Intermediate Language that all managed languages compile into.
Assembly Launguage is pretty much a dead art form under Windows. I think Microsoft stopped selling its Macro Assembler about 4 years ago. It's still available as an MSDN Subscriber download though.
What your refering to is actually here[^] on Amazon. There are other titles listed on that page that still cover the topic.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Thank you very much for your comment. But I already order this book[^] online. Do you think it is a good book for me as a beginner which never know about assembly programming language??? On the other hand, could you give me some advantage that assembly programming language could do for us???
Thank in advance
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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Oh well, it's not assembly language...
[EDIT]
Whoops, I thought you were talkinga about the IL book...
The man from SCN-CO wrote:
On the other hand, could you give me some advantage that assembly programming language could do for us???
Like I said, in Windows it's a dead art. It's EXTREMELY tedious, but in speed critical code, it can be worth to time to write the machine code by hand for the best possible optimization.
Mind you, the only Visual Studio language that lets you write machine code in-line is C++. None of the managed languages will let you do this.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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there is a program written in DOS any time i issue print
the printer does not respond . I read from the net that is becos of the
new usb printers
i need a source that can help me issue print or
source code that can allow me to get the command from the QUEUE
Can anyboby help me
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Is this[^] and this[^] will help you???
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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When i create this programe it will give error
Public Class Form1
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
'Add any initialization after the InitializeComponent() call
End Sub
'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents Button1 As System.Windows.Forms.Button
Private Sub InitializeComponent()
Me.Button1 = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(64, 80)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(152, 24)
Me.Button1.TabIndex = 0
Me.Button1.Text = "Button1"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.Add(Me.Button1)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
#End Region
Dim frmstring As Object = "From2"
Dim frm As Form = frmstring
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
frm.show()
End Sub
End Class
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Dim frmstring As Object = "From2"
Dim frm As Form = frmstring
What do you think those two lines should do? First you assign the string "From2" to the object variable frmstring. Then you want to assign this string into the Form variable frm. This doesnt make sense and is the cause of the error.
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That reminds me of one of the mistakes that I made when I was 8 or 9 years old when I was first learning to program and I read that you could make the computer sound in different "voices" (what they meant was altering the sound to emulate basic sounds like some instruments) and I tried to write code replacing the pitch variable with a string and then wondering why it didn't work and didn't say anything. (As luck would have it I got a speech synthesiser for my next birthday so I could get my computer speak some words)
My: Blog | Photos | Next SQL Presentation
WDevs.com - Open Source Code Hosting, Blogs, FTP, Mail and More
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That POS Sinclair had a speech synthesizer? 
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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POS: "Piece of Fill in your term for excrement here"
I can't complain really. I had an old Bally Game Console that had a BASIC cartridge with a WHOPPING 1.8K of RAM. Yes, your heard that right 1.8K. Ever try typing in programs with a keypad that looked like a calculator?
From there, I moved up to a TI-99/4A with a speech sythesyzer and the Expansion Unit that was bigger than 2 bread boxes and an additional 32K of RAM. Whoo Hoo! Those were the days! 
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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Hello,
I have been working in ASP.NET for a few months and i bought a few components.
I really like it because i get things done really fast and most of controls are really good.
Now i got a hit counter in http://www.codeproject.com/aspnet/fastcustomhitcounter.asp.
Is it possible to transform this code and use it as a control?
Can someone help me out? I never did something like this.
The code doesn't seem very complex.
Thanks,
Miguel
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Try to read this article[^] or if it is possible you should buy this book[^] you extend your knowledge.
A thousand mile of journey, begin with the first step.
APO-CEDC
Save Children Norway-Cambodia Office
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i have a datagrid whose datasource is a datatable
now, i want to retrive the values of a particular cell of a datagrid. how can i do this
also i want to increment the position of currentrow by 1
how can i do it
sumit
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For accessing values use the indexer of the grid:
Dim o As Object = myGrid(rowIndex, columnIndex)
For incrementing:
myGrid.CurrentRowIndex += 1
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i want to retrieve the text written at the cell
how to use
"dim o as object" to get the text
also, can i make datagrid editable, so that user can write into it.
i basically want to do a insert operation
i have adatatable showing the table on my database db1.mdb
now i want that if user wants to insert a row , he simply types the values in the next row and pressses button "btn_insert". at click event of this event i want to insert the row which user had entered in the datagrid
plz help
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In checkedlistbox checked items is stored in listbox that listbox items how can stored in database.
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use this example
Try
Dim i As Integer = ListBox1.Items.Count
For i = 0 To i
Dim b As String = ListBox1.Items.Item(i).ToString
MsgBox(b)
//use this plce to save your data to the database
//ignor my Dim b As String = ListBox1.Items.Item(i).ToString
//MsgBox(b)
Next
Catch ex As Exception
End Try
this is another example to display a selected item
Try
Dim a As String = ListBox1.SelectedItem.ToString()
MsgBox(a)
Catch ex As Exception
End Try
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i had made a project which has 2 forms in it
form1 and form2
in form1 i had made a "oledbconnection con" which is set public
now, i want to use its getoledbschematable method in form2
i want to display names of all tables in my database in form2 datagrid. con is my connection to that database which is in form1
i had also done "imports system.data.oledb"
in both forms
ds is my datagrid in form2
my code snippet in form2 is
dim f1 as new form1()
dim dt as dataset
f1.con.open()
dt=f1.con.getoledbschematable(oledbschemaguid.tables,new object(){nothing,nothing,nothing,"table"})
ds.datasource=dt
f1.con.close()
plz help
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What is your problem ? How would you like us to help ? ESP ? Magic ? It's possible that the problem is that you've not called databind on ds, but who can say ? You've not said what the problem is, showed us the method you call, or anything else that would help us to help you.
Your code is pretty terrible in any case. Why are you putting data access code in a form ? Surely the fact you need to create an instance of a form to call a database method is a clue that you have an exceedingly terrible design happening here ( no design, more like ). You should not declare all variables at the top of a function, do it as you need them. Why don't you just not create an intermediate dataset at all ? In an ideal world, all of the above code should look like this:
ds.DataSource = MyWellDesignedDataAccessClassWithStaticFunctionsAndAStaticConnectionWithLazyInitialisation.GetSchemaTable();
ds.DataBind()
Man, non-case sensitive languages make me feel dirty.
I recommend you stop programming until you've read a book called Code Complete.
Christian
I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer
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