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JoeySpimoley wrote:
But which is a better language to pursue first VB or C#.
Like anything else, it's a matter of preference. If you're going to learn both, neither is that much better than the other. There are some things that VB.NET supports that C# doesn't and there are things that C# supports that VB.NET doesn't.
For instance, I'm writing an application that has a front end written in VB.NET and all the image processing code behind it is written in C#. (Christian -> Thanks for the image processing articles!  )
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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As the other reply stated, both are very close as far as features and power.
It really is a matter of style and preference. VB.NET will be easier for you since you have a VB6 background. On the other hand, C# is also very easy to pick up if you have a VB background.
To sum up the different styles:
VB.NET: Descriptive syntax and multiple syntax alternatives
C#: Concise and elegant code with virtually no ambiguous syntax
David Anton
Tangible Software Solutions
www.tangiblesoftwaresolutions.com
Home of:
Instant C#: VB.NET to C# Converter
Instant VB: C# to VB.NET Converter
Instant J#: VB.NET to J# Converter
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I think I am going to go with VB.NET then learn C# at a later time.
._._._._._.-.-.-.-.-._._._._._.-.-.-.-.-._._._._._.-.-.-.-.-
Spimoles.NET
clean and elegant. a beautiful craft
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can anyone tell me how can i load data back onto treenode from access database ???
thanku
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If you're adding a single level of nodes to the TreeView...assuming VB.NET...
TreeView1.Nodes.Clear()
objCon.Open()
adapter1 = New Odbc.OdbcDataAdapter("Select * from RemoteHost", objCon)
data = New DataSet
adapter1.Fill(data, "RemoteHost")
' This part assumes that a table called "RemoteHost" actually exists in the dataset,
' and the a column called "General" exists in that table!
Dim I As Integer
With data.Tables("RemoteHost")
For I = 0 To .Rows.Count - 1
Dim newNode As New TreeNode( .Rows(I).Item("General").ToString() )
newNode.ImageIndex = 0
TreeView1.Nodes.Add(newNode)
Next
End With
objCon.Close()
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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still havin error on this line of code objCon.Open()
An unhandled exception of type 'System.NullReferenceException' occurred in tab.exe
Additional information: Object reference not set to an instance of an object.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
TreeView1.Nodes.Clear()
objCon.Open()
adapter1 = New Odbc.OdbcDataAdapter("Select * from RemoteHost", objCon)
data = New DataSet
adapter1.Fill(data, "RemoteHost")
' This part assumes that a table called "RemoteHost" actually exists in the dataset,
' and the a column called "General" exists in that table!
Dim I As Integer
With data.Tables("RemoteHost")
For I = 0 To .Rows.Count - 1
Dim newNode As New TreeNode(.Rows(I).Item("General").ToString())
newNode.ImageIndex = 0
TreeView1.Nodes.Add(newNode)
Next
End With
objCon.Close()
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Uhhh...Did you actually create a Connection object?
Where is objCon defined? Was it actually created with a New? Was it assigned somewhere else, but not filled in with the connection details?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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It is possible to open to an application NET (DLL) from a project VB6?
It would interest to send from an application VB a .NET form
Thanks
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Thanks, but this was not exactly what I wanted. I have a MdiContainer form in a project VB6 and have an application (form) in NET. What I wanted I was to be able to call to the form of NET from VB6 doing it MDIChildren.
I have been able to call the form NET from VB6, but what with himself he is that habra like a new window and not like a MdiChildren.
Thanks in advance
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Roirin wrote:
Thanks, but this was not exactly what I wanted. I have a MdiContainer form in a project VB6 and have an application (form) in NET.
You didn't post any specifications like this at all, in fact, you didn't post ANY specifications. You got links to documents that generally covered your very general specs.
Roirin wrote:
I have a MdiContainer form in a project VB6 and have an application (form) in NET. What I wanted I was to be able to call to the form of NET from VB6 doing it MDIChildren.
You have to do the very same thing that's covered in those documents. Your classes, and even a Form is a class, must be exposed to COM so VB6 can use it. Without that, you're sunk.
I've never done it, because I've never had the requirements to do it. In theory, it should work. But I there are potential problems, simply because VB6 and VB.NET manage Forms so differently.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I was able yesterday to do what wanted.
In this page http://www.codecomments.com/archive293-2004-7-228359.html they indicate like opening a form to you within another one, the only thing that I had to replace "hChild" by the "Handle" of the form NET For it I made a method I publish:
Form VB .NET in a project of libreria of classes
Public Function getHandle() As System.IntPtr
getHandle = Me.Handle
End Function
ActiveX Document
'To create the reference to the class .NET
Private Sub initialize()
Dim hChild As Long
Dim hParent As Long
Dim f As New ClassLibrary2.Form1
Dim b As Boolean
hChild = f.getHandle()
hParent = UserDocument.hwnd
b = SetAsParent(hChild, hParent) 'this function is in the Web
f.Show
End Sub
Thanks
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Cool!
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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can anyone tell me how to parse treeview
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That all depends on what you mean by parse?
Parse a string returned by a TreeViewNode? Walk the Tree? What?
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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i m so sorry that i didnt mention ..
yeah i mean how to Parse a string returned by a TreeViewNode...
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Parse the string to what end? are you tying to convert it to a number or what?
Absolute faith corrupts as absolutely as absolute power
Eric Hoffer
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
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can anyone tell me how to parse treeview data ????
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I am using visual basic.net only.
I need some help in fractions. How can I use the fractions in system.math to create a fraction program?
I will use two textboxes and a label for the answer within a form
and i will be adding, subtracting, multiplying, and dividing. Can anyone assist with a sample code?
bravo659
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What fractions in System.Math ? VB.NET has numeric types, your core need is Convert.ToDouble(), to convert the text entered into a non-whole number, and ToString, to convert back to a string to put in the label. The rest is trivial.
Christian Graus - Microsoft MVP - C++
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I appreciate for your time. I am an intermediate programmer, I am not an expert like you. So being trivial I really dont think so in my part. I am trying to learn this solution. I enter a numerator and denominator in the textboxes. There is no text to convert. Trying to figure out how to use the numerator and denominator in a fractional sense in a program. Don't know if i would use the abs or just something else to get the result in the label as a fraction.
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There is nothing in the Math namespace to show fractions as fractions. You need to convert to numbers, work out a whole number part, and render it all as text yourself.
Christian Graus - Microsoft MVP - C++
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TextBoxAnswer.Text = (Double.Parse(TexteBox1.Text) / Double.Parse(TextBox2.Text)).ToString()
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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I appreciate for your help, but I already know to convert a fraction to a decimal. The code is related only to fraction conversion to decimal.
I would need to know how to render an answer in fraction not decimal.
For instance, 5/8 + 1/8 = 6/8 reduces to 3/4.
So therefore, the textbox1 will be the numerator and textbox2 will be denominator. The third textbox will return the fractional value.
Or textbox3 will be the numerator and textbox4 will be the denominator and this will invoke the answer. I am having the problem of generating a code for the above instance in fractions.
bravo659
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ah, but you never said you wanted to make a formal calculus...
i never searched for that exactly, but looking at some math parsers here on CP should help you to achieve your goal.
moreover, don't 5/8 + 1/8 make 6/8 ??? 
anyway, nevermind, i won't repeat it 
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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