Create A Family Tree?
Mar 17, 2012Creating a family tree.
View 7 RepliesCreating a family tree.
View 7 Replies[how can i create binary tree for mlm
View 1 Repliescreate a mailing list of my students with the usual lastname, firstname, address, city, state, etc. This all works fine - except that I'm getting multiple records for the same family when they have more than one children in our database. So, ideally, I would like to be able to group by the family name (which is grouped in a seperate Family table then linked to the student table by familyid), then in the second field list each child of that family separated by a comma.
View 1 RepliesI need to compare two tree-structured reports and show comparison results in a datagridview in vb.net. I think using tree structure should be efficient. But note that I DO NOT use a tree view to display results (I found a lot of help in tree view though). All I want to do is to construct two trees, and then search the trees and compare. I do not know how to write this in vb.net.
View 1 RepliesHow can i create an arborescence of folders tree in vb.net?
View 1 RepliesI'm looking for a way to create the treeview structure in memory with a classes, so I can loop through them, like with a collection and easily load the data into a treeview, listview, datagridview or simply work with the data in the background.
There's a treenode class that I could use, but I've noticed that when I have a lot of data in the nodes, it has a lot overhead when for example serializing, because it also saves the checked state, imageindex of the nodes and things like that, which I never need. The saved file is about 10 times bigger than the actual data, which is not acceptable.
I have a bunch of objects, they aren't in XML but the xml document would look like this[code]...
The tree is obviously very deep. Does anyone have an algorithm to create this into a jstree, series of "UL" and "LI". It would be christmas if you had the code in vb...but I will be satisfied with just the logic. My thought is to eventually make this into a jsonp web service so I can use jstree to build a tree, but for now im just trying to understand the logic necessary to parse this correctly.
I have a bunch of objects, they aren't in XML but the xml document would look like this:
<object>
<path>root</path>
</object>
<object>
[code]....
The tree is obviously very deep. Does anyone have an algorithm to create this into a jstree, series of "UL" and "LI". It would be christmas if you had the code in vb...but I will be satisfied with just the logic. My thought is to eventually make this into a jsonp web service so I can use jstree to build a tree, but for now im just trying to understand the logic necessary to parse this correctly.
How to create Dynamic Tree View for an ERP software in VB.Net
View 1 Replieshow to create tree view with multi languages in vb.net
View 1 RepliesI am not the original author of this software project and the code is poorly documented. I am mainly a Java/C++ developer.The program displays the tree structure and allows files and folder to be selected. The program is getting errors with FileSystemTreeView when trying to return nodes on a system with a reserved partition.Here is what is happening: tree.SelectedNode = tree.Nodes(0) 'returns error with system reserved partition.calling, GetDriveList() will properly return all the drive letters - and not throw an error. Only when trying to get a tree.Node() or tree.load() is the error occurring.
View 3 Repliesexample how to create a right click on selected node in tree view..example
parentNode = mdiform
childnode1 = child form1
childnode2 = chile form2
which ever i select a different node a corresponding form will appear with a mouseup event.
i must choose first a node to view my contextmenu.
i am trying to indicate if the tax is at single rate (18%) or the family rate of (15%)This is what i got so far i could do the rest but just cant do the Mstatus part.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Name As String 'Name of employee
Dim hrWage As Double 'Hourly wage
Dim hrsWorked As Double'Hours worked this week
[code]....
Currently, I have this method to compare two numbers
Private Function ETForGreaterThan(ByVal query As IQueryable(Of T), ByVal propertyValue As Object, ByVal propertyInfo As PropertyInfo) As IQueryable(Of T)
Dim e As ParameterExpression = Expression.Parameter(GetType(T), "e")
[code]....
It works fine and is consumed in this way
query = ETForGreaterThan(query, Value, propertyInfo)
As you can see, I give it an IQueryable collection and it add a where clause to it, base on a property and a value. Y can construct Lessthan, LessOrEqualThan etc equivalents as System.Linq.Expressions.Expression has this operators predefined.How can I transform this code to do the same with strings? System.Linq.Expressions.Expression don't give me a predefined operator like "contains" or "startwith"?
Is there an easy way to create a "tree diagram" for use with a combobox, much in the same way as the pull-down menustrip?
View 1 RepliesI have a self referencial table Which contains fields Like ID, Name, Parent ID. By Using this table I wish to show records in crystal report Like a tree view format Like
View 1 Repliesdrag and drop nodes within the same tree (not between trees) when users drag and drop nodes within the tree, give them the option to move the original node to a new location within the tree OR to just copy the original node in a new location (seems complex but I have a month to figure this out). change the system default blue highlight for selected nodes to another color change the system default cursors for invalid and valid drops (instead of the circle with slash indicating invalid target, i want a red minus) and (instead of the little plus sign with little box indicating a valid target, i want just a big green plus sign) add a red insert line to indicate where the node would be dropped within a tree also drag and drop the text of a node from the tree to a textbox add a "folder" image next to parent nodes and a "document" image next to children nodes
I have looked through the internet but I am having difficulty sorting through all the information available (I see a lot of information for Visual Basic 5 and 6, and those codes don't work for me in visual studio 2008). I can email anyone my code I have so far.
Public Class Form1
Private MouseIsDown As Boolean = False
Public Sub TreeView_ItemDrag(ByVal sender As Object, ByVal e As ItemDragEventArgs)Handles TreeView1.ItemDrag
[Code]....
i am trying to get all the users under a tree from AD with the following code:
Code:
Dim RootEntry As New DirectoryEntry("LDAP://OU=Mayor,OU=IS,OU=Users,DC=*******gatn,dc=gov", "myusername", "mypassword")
[Code].....
I am very new to VB.net and I am having a hard time figuring out this error. I am using Visual Studio 2010.
The error is like this[code]...
I am also attaching all the files need to run this program. Please help me because I have been scratching my head for more than a week without any success.
The inorder traversal is working fine, but when I implemented the Breadth First Search Traversal to show the output of a numbers by level, then I started getting this error because I implemented new queue class (clsQueue.vb)for this.
I am trying to learn how to populate a tree from a database, I did this same thing back in Vb6 and am trying to learnhow to do it in VB.Net, but I am having trouble with the code. From looking on the web I have piced this together, but I think it may be far off. It just jumps out put leaving the tree blank; and it gives no error message. I put in a try error catch and it cannot convert the data to a double, but even if I take this out it does not work. It is stuck at the line with: dr("CustomerID") <> hID I was using this to check for a parent node, I can take it out, but it still does not work; I am afraid that I am be way off here. I am using the Nothwind database.
[Code].....
Just wondering how I can populate the child node in the following coding (I am able to populate the parent node but still wondering how to list out the child nodes)
===Extra Info===
I have a class to retrieve the Category Table (CategoryID, CateogryName, ParentID) and stored it via List<T>, when I need it, I declare CateogryDAL pass it to CateogryData.
[code].....
I have this code to delete a registry key:
Private Sub RemoveCurrentKey(ByVal name As String)
Dim key As RegistryKey = Registry.CurrentUser.OpenSubKey("Software\", True)
key.DeleteSubKeyTree(name)
End Sub
But it simply wont remove the key tree, How do I remove the whole tree?
Everything is fine except the underlined code says-'Expression is of type 'System.Environment.SpecialFolder', which is not a collection type.'
All I want to do is add the node to the treeview. Let's say that I want "My Program" to be the node in the treeview, and THAT node is a folder inside my program files, which also has a folder inside of that which is called "Projects".[code]
i want to create tree view of my computer in windows application in vb.net 2005
View 1 RepliesI have a hashing method whose operations depend on input to the function. Profiling the program has shown that too much time is spent evaluating this hash method. I want to try changing it into an expression tree, so the inner loop checks can be done once.
Here is a simplified version of the function (I undid some obvious optimizations for the example, and took out any input validation):
Private Function Checksum(ByVal inputValues As IEnumerable(Of UInt32),
ByVal declarations As IEnumerable(Of String),
ByVal statements As IEnumerable(Of String)) As UInt32
Dim variables = New Dictionary(Of Char, UInt32)
[code]....
I want to create a function which takes the declarations and statements and outputs a specialized expression tree representing a function which takes an IEnumerable of UInt32 and returns a UInt32.Follow-Up:I succeeded, and the speed-up was ridiculous (an order of magnitude). The main things I had to learn where:Use Expression.Lambda and Expression.Compile to get a delegate you can actually use.The Expression.Block factory method has a 'variables' parameter you (essentially) use to declare locals.Expression.lambda has 'parameters'.If you call Expression.Parameter twice, you're dealing with two different variables (even if their name is the same)! Store the result for later usage. Same for labels, etc.The result of a BlockExpression is the last expression in the block.
how do i add something like the Icons i saw here - [URL]
View 4 RepliesI have a treeview control in wpf..i need to add an image at evry node.how is it possible?
View 2 RepliesAlgorith Of In-order Transvesal In A Tree?
View 1 RepliesAm looking for an Algorithms that will take object that a linked to multiple other object and work out the best location to draw each object based on there links.
this would generate a tree like diagram.
So i have Object 1 then hast 10 link, one of these link is object 2 that has 5 link but object 1 link to one of object2s links and such link.
so i would have some thing like this
Object1 ------------ Object2
/
/ /
Object 3
But this is on a 100% bigger scale with unlimited number of objects and links.
how i would go about working out the best location on my form for each object?
I am trying to find a quick, step by step tutorial on on to implement a tree view for my intranet that will show all the computer accounts in my domain. (this is obliviously only step number one, because once i can see them, I want to be able to query information from them.but one thing at a time right?)
View 1 Replies