Reversing A TreeNodeCollection?
Apr 1, 2010
I was wondering how it is possible to reverse a TreeNodeCollection. Since it doesn't have an inline reverse function, I've tried several other methods to no avail: everything from copying the nodes into an array (which has a built-in reverse function), reversing it, and then copying it back into the TreeNodeCollection to using a custom reversing algorithm. Nothing has succeeded.
[Code]...
Any ideas as to why, or how, additional nodes are being added? It doesn't make sense to me as to why that would happen. All I'm doing is changing the values of nodes that already currently exist.Edit: In addition to this method, another possible way to approach it would be to sort the treeview in reverse order in the first place (I think by using an ICollection, or possibly IComparer?), but I've no idea how to accomplish this. I'm not even sure where to start regarding using an ICollection to sort the nodes in a custom fashion.
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Dec 8, 2010
The TreeView uses in its underlying implementation the TreeNodeCollection. The TreeNodeCollection in almost every overload of the add method asks for a key.It also implements indexOfKey and ContainsKey yet there appears to be no way to determine the key of a node from the node itself or from any of the events you would typically use such as TreeView_AfterSelect().
Am I correct or is there in fact someway to retrieve the key from a node or event which I have overlooked? And assuming I am correct. Why on earth was it implemented in such a way? The only thing I could think of was that perhaps TreeNodeCollection.Key is deprecated? But I see no mention of this...
PS: I am aware of the TreeNode.Tag property and how it can be used to the same effect.
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Apr 1, 2010
I'm having problems reversing my string. For example if the string is "DOG", i want it to be like "GOD"
Here is my code. what to add?
Dim oldpassword As String
Dim newpassword As String
Const Prompt As String = "Please Enter 5 to 7 digits only"
[CODE]...
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May 9, 2011
I am attempting to reverse the numbers in the array I have below. I was able to set the numbers from 1 - 10, but now I am unable to get the array to work properly when trying to reverse, I keep getting an error "Value of type 'Integer' cannot be converted to 'System.Array'. [code]
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Feb 14, 2012
I am attempting to reverse the numbers in the array I have below. I was able to set the numbers from 1 - 10, but now I am unable to get the array to work properly when trying to reverse, I keep getting an error "Value of type 'Integer' cannot be converted to 'System.Array'.
Module Module1im
Sub Main()
Dim array(10) As Integer
[code]......
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Oct 24, 2007
So for an intro to programming class, we use visual basic, and i have to write a program that reverses the characters in a string. I've written a code that (i think) turns the string into an array, and then used the array.reverse method to reverse the characters.
I feel like my code is correct, but clearly it is not....when i run the program, there are no bugs, but instead of giving me any part of the input string, it returns "System.Char"
I'm a TOTAL beginner, and clearly not very good at this sort of thing, but here's my code for my "reverse" button:
CODE:
I'm open to other methods for reversing strings, but I'd like to stick with this one if at all possible...
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Jul 27, 2010
dim str as string = "Today is Wednesday"i want to reverse the string in this order:
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Feb 13, 2011
Text file
a
b
c
d
e
Want to turn them into e,d,c,b,a
What's the most efficient way to do so? stack? Queue? List?
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Feb 4, 2010
I'm creating this program where the user inputs their name in this one textbox, and they click on the button where it should come up with their name in reverse(Last Name, First Name) in a message box. My message box doesn't work. My code does show I'm using the If statement because I'm trying my make sure the user is inputting letters only and nothing else. But I would fix that later thats not my biggest concerns.
[Code]
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Jun 29, 2010
Im looking to dynamically populate a Placeholder with data sent from a textbox on the same page, but in reverse order i.e. the latest post goes to the top ratehr than the bottom - kidda like Twitter or Facebook.The code I have so far is below but I keep geeting an error stating that "BC30311: Value of type 'System.Collections.ArrayList' cannot be converted to 'System.Array'." [code]
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Jun 9, 2011
How can I invert (or reverse, whatever) a string, but reversing each word?
[Code]...
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Apr 18, 2011
Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGo.Click
Dim name As String = txt1.Text
Dim backwards As String
'backwards = name.Reverse
[code].....
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Feb 16, 2011
I have written a simple VB.net application which saves information to an RFID tag. I am now trying to compress my data. The solution I have come up with involves bitwire operation.Basically I store 2 numbers per 1 byte (0-9, 10 being a period, 12 possibly being a negative/positive flag,13,14,15 unused as of yet).The code I am using basically shifts the byte containing a number left, 4 spaces, then 'OR's it against another number.Therefore 12 is now represented as 00010010. The problem i'm having is decompressing. Obviously getting the '1' back is easy, as I just shift right 4, then grab it. I need to append or remove the last 4 bits.My solution after many headaches was to reverse the bit order, shift left 4, then reverse, then tostring it.
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Aug 29, 2010
Is it possible.we can reverse a digit in VB.NET(Graphics mode)not console based
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