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gjx_junxian1989 wrote: Dim myCalc As New DateCalc2008()
It means, create a new object, call it myCalc, and initialise it by calling the constructor of DateCalc2008.
gjx_junxian1989 wrote: ust a thought, so usually if i were to have a class and want to create instances of it, i could just write it all out on the long sheet of codes instead of using the .dll as reference method?
The only reason for the dll reference, is that you put the code in a dll. You would rarely do this, and I'm shocked that a book is telling you to mess with dlls, before explaining to you what a constructor does. If you have a reference to the dll, then you DO need to reference the full namespace of the dll, to get access to the object. If you start to type in the name of the top level namespace in the dll, autocomplete should kick in. If it doesn't, I doubt you have that reference. Also, if you made the reference, THEN added the class, you probably need to remove and re-add the reference to update it.
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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ic. Thanks alot. so if im not wrong, Dim myCalc As New DateCalc2008(), creates an object myCalc, which thus enables me to gain access to functions and variables in the class DateCalc2008 and assigning values to it. so the DateCalc2008 is like a template for many other uses of same application? But usually we write classes and make objects of the class in a single sheet of code?
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gjx_junxian1989 wrote: so the DateCalc2008 is like a template for many other uses of same application? But usually we write classes and make objects of the class in a single sheet of code?
Not really. A class would be created in one file inside your project, other classes, in other files, would create instances of the class and use them
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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ok. Hey, thanks, you've been a great help. Is there anyway i can contact u in future if i have problems with VB? 
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I don't actually do VB, I just help here b/c it's all .NET. There's other people on these forums far better at VB than me, your best bet is to ask here, I'm here all the time, so I'll answer if no-one else does
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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Alright! Thanks man!
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I'm not good at English.
Not enough data to answer, because you didn't say about all the parts in your project and your project name.
May be you have a class named "DateCalc2008" and a form named "Calculator". The form "Calculator" has a control named "StartDatePicker", and you created a subroutine which handles "StartDatePicker.ValueChanged" event.
The error is: The form "Calculator" doesn't have a member named DateCalc2008.
You should fix your code like this:
Dim myCalc As New {project name}.DateCalc2008
I hope this will be an useful answer.
Good luck !
chilinhhacker
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I have a combobox that all my formname such as form1,form2,... listed that.
i want when i select a formname from combobox the component of selected form list in listbox such as button1,textbox1,....
but when i choose a formname from combobox because it is a string havenot form property such as control,enabled,...
how can convert selectitem in combobox from string to form??
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you cannot convert a string to a form, I would hope that is obvious. You could make the tag of the item the form that your string refers to, and then grab it from there, or build a map of strings to forms.
Christian Graus
Driven to the arms of OSX by Vista.
Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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Hello Experts!!
I am declaring one array (having size 10) as an integer and bind array data to grid combobox.It works well but in combobox it shows values as well as zeros....means if array contains 3 values then remaining values shows zero(remaining 7).
How to taggle with this? Combo shows like this->1,2,3,0,0,0,0,0,0,0...I dont want that zeros
My code is
<pre>Dim o As New design
Dim i As Integer = 0
Dim rowArray As String()
Dim no(10) As Integer //Declaration
rssearch = New ADODB.Recordset
rssearch.Open("select srno from design", con, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockPessimistic)
While Not rssearch.EOF
o = New design
o.dsrno = rssearch.Fields("srno").Value
Dim row1() As String = {o.dsrno}
Dim rows() As Object = {row1}
For Each rowArray In rows
no(i) = rowArray(0) // Assign value one by one
i = i + 1
Next rowArray
o = Nothing
o = New design
rssearch.MoveNext()
'i = i + 1
End While
CType(dgvbottom.Columns(8), DataGridViewComboBoxColumn).DataSource = no // Display values in combo
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This is why you should use dynamic lists instead of fixed arrays. The control is doing exactly what you asked it to. Use List<int> instead.
Christian Graus
Driven to the arms of OSX by Vista.
"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.
I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp
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hi,
an int array of dimension 10 always contains 10 numeric values, they get initialized at zero.
solutions:
1. give your array the right dimension
2. use a collection instead of an array, say a List Of Int
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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List of (int ), worked..Thanx...
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Hello Friends,
How to convert a bound field to template field in vb .net window application
In website there exist a link to convert bound field to template field.
Thanks In Advance
Praveen
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You are working with a completly different control. The DataGridView does not have the concept of the Template column. Google working with DataGridView, there are plenty of examples out there.
Never underestimate the power of human stupidity
RAH
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You need to work with datagridview and add 2 additional columns, for example DataGridViewLinkColumn. For each one of those columns add events, for example:
AddHandler DataGridView1.CellContentClick, AddressOf Lnk_CellContentClick
Private Sub Lnk_CellContentClick(ByVal sender As Object, ByVal e As DataGridViewCellEventArgs)
Select Case e.ColumnIndex
End Select
End Sub
Shay Noy
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I have been provided these two code sources:
http://www.outlookcode.com/codedetail.aspx?id=88
and
http://www.outlookcode.com/codedetail.aspx?id=83
to generate a new meeting request in Outlook. My goal, is to use code (i've been told these will do what I need) to be able to send a new meeting request via an infopath form. The reason I want this done in Infopath is so that I can generate a print view form for users to have a custom brochure. I would like for users to fill out the form in infopath and upon clicking the submit button, have the meeting request send in outlook. I am not very familiar with coding, so if someone could walk me through the steps to implement this (or another) code to make this happen, I'd greatly appreciate it.
Thank you.
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Programming is somewhat more complicated then browsing for code-snippets and mixing them. You might consider outsourcing your project if you have no practical experience.
My apologies, I know that this isn't the answer you had hoped for.
I are troll
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hi i want to use bios date in my application ,i want use this date in my
application expipry coding which developed in vb.net.Please tell me how i can get the bios date in my application.
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DateTime.Now should work since whenever you change Windows clock BIOS time changes as well.
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You should not post the same question in more than one forum. It is rude.
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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Hello Experts!!
I am using following code to bind data from db to datagridview column having type combobox. but i dont know how to show data into combobox.
Dim o As New designpant
Dim i As Integer
rssearch = New ADODB.Recordset
rssearch.Open("select srno from designpant", con, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockPessimistic)
While Not rssearch.EOF
o = New designpant
o.dsrno = rssearch.Fields("srno").Value
Dim row1() As String = {o.dsrno}
Dim rows() As Object = {row1}
Dim rowArray As String()
For Each rowArray In rows
Dim no As Integer = rowArray(0)
'ComboBox1.Items.Add(no)
dgvsherwanibottom.Columns //like combobox1 i want to show rowArray contents into gridview combobox Next rowArray
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1. DataGridViewComboBoxColumn
2. DataGridViewComboBoxColumn.DataSource
3. DataGridViewComboBoxColumn.DisplayMember
4. DataGridViewComboBoxColumn.ValueMember
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In my code it shows only DataGridViewComboBoxColumn.Equals and DataGridViewComboBoxColumn.reference properties
Does i made any mistake?
Where i have to write this??
i am trying it in form load.
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