VS 2008 - WMI And Adding Queried Information To TreeView
Dec 14, 2009
In the following code example, I am querying WMI for Memory Modules and adding the information to a TreeView component.
VB.NET
Dim Scope As New ManagementScope("
ootCIMV2")
Scope.Connect()
Dim objectQuery As New ObjectQuery("SELECT * FROM Win32_PhysicalMemory")
Dim Searcher As New ManagementObjectSearcher(Scope, objectQuery)
[Code] .....
When I run the code, I expect to see a Parent Node named System Memory, and two Child Nodes for each memory module installed. I do get the appropriate Child Nodes, but I also get an extra Parent Node and I can't seem to figure out why:
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Oct 3, 2011
I am new to VB/VB.net and i will really need help in developing an application with VB.net and to be able to access the information via sms query.
[Code]...
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Mar 12, 2010
How would i add all registry (subkey, parent, etc) items to a treeview?
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Oct 31, 2010
I am not sure I am getting the concept of referencing nodes in a treeview. When I hard-code nodes like:
tnParentNode = New TreeNode("ABC")
tvReports.Nodes.Add(tnParentNode)
tnParentNode = New TreeNode("Some Other Company")
[code]....
I get two parent nodes and one child off Some Other Company. However, when I pull information from a couple of tables to set up the parent and then the child nodes, I only get the parent nodes.So I pull the main parent nodes from one table and the child nodes from another table.This code pulls the parent nodes without any problem:
strSQLText = "SELECT lID, sCatName FROM Category ORDER BY iSortOrder DESC"
reader = GetReader(strSQLText)
While reader.Read
[code]....
But this does not add the child nodes. I am assuming it is because of the first line in the above reader.read while loop. I must not be referencing the proper parent node but I am not sure how to do it.
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Mar 9, 2010
I have a treeview. The root nodes have images set at 30x30 - is there a way to add child nodes with NO image or a smaller image? I can do a blank image, but each child is spaced far apart! I would like the child nodes to be like there is no image... tight and close to each other.
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Feb 12, 2012
[Code]...
what mistake i am doing here while execution
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May 14, 2011
I have a problems with my application..
1. collapse and expand treeview when i click plus sign (+) on treeview, treeview didn't expand subfolder but when i click image, treeview expand it.
2. showing path that i check on treeview when i check the treeview then i'm click the button, then return path that i check
This is my code..
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Oct 25, 2011
i have a treeview say TV1 and another Treeview Say TV2.. Now TV1 Contains all nodes for user rights. and i want to add to tv2 only selected nodes.Like TV1 is
Node 1
....Child of Node 1 (Level 2)
.........Child of Child of Node 1 (Level 3)
what i want is that when i select Level3 Node it should chek TV2 for the parent of this node. if parent exist it should add the node under the same parent. if parent does not exist it should check for Level 1 Node and if it exist it should add Level 2 Node and then Level 3 Node. Otherwise it should add Level 1 , Level 2 and then Level 3 Nodes in order.
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Mar 10, 2010
I'm just starting out at vb.net but have done programming before. i am trying to use a treeview to display information in a seperate table on the same form dependant on which nod of the tree is clicked. Secondly is it possible to import the information from an excel spreadsheet or does the information have to come from an access table.
[Code]...
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Mar 30, 2012
I want to add key while adding node to the treeview but I don't see key property in the treenode. I am using following code
objAddSubFolders = New TreeNode
objAddSubFolders.Text = arrListDisplayFolders(intCountSubFolders)
objAddSubFolders.Name = arrListDisplayFolders(intCountSubFolders)
objParentNode.Nodes.Add(objAddSubFolders)
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Aug 5, 2009
i want to add a node just above all removable drives from the thread I asked about in before. I decided that I don't want to have "C:" as a node, instead I just want my program to be the node. I've worked with this before but i can't figure it out without messing up what I already have.
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Jun 14, 2011
I've created a treeview that is going to represent a 'table of contents' for a Word template I use frequently and I need to add checkboxes to each node of the tree view.
Here is some of my code so far:
tvwSIGtemplate.Nodes.Add tvwSIGtemplate.Nodes.Item(2), tvwNext, , "3. Statment of the Issue and Solution"
tvwSIGtemplate.Nodes.Add tvwSIGtemplate.Nodes.Item(3), tvwChild, , "3.1 Issue Details"
tvwSIGtemplate.Nodes.Add tvwSIGtemplate.Nodes.Item(4), tvwNext, , "3.2 Solution Details"
What to add to these lines to simply display a checkbox next each line?
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Aug 13, 2009
I am now trying to get grandchild nodes in my treeview, i have got everything working, BUT instead of the nodes being put 'IN' the child node they are being put 'BELOW' it.
[Code]...
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Apr 15, 2009
This is somewhat of a multi part question, let me start off by explaining what I'm trying to do. I have an organized folder system with data files in them. Each folder has a set structure to their naming, and can contain sub folders and files. It will be a jagged directory system. I'm trying to import their structure into a TreeView. I have the workings of a recursive system that adds all files and folders into a ViewTree, however they aren't organized by parent/child.
So I get this...
-C:Temp
-C:TempData
-C:Tempfile1.txt
-C:Tempfile2.txt
-C:TempDatafile3.txt
-C:TempDatafile4.txt
etc........
How would I go about parsing the directory paths, and include them into a parent/child relationship... looking like this
+Temp
--file1.txt
--file2.txt
-+Data
---file3.txt
---file4.txt
Also I when the line item is selected, I need to know which file is selected so I can use it's full path to call up data (using an API) based upon the it's full root path.
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May 12, 2009
I am having a performance issue when adding a large array to a treeview. I am pretty sure that I am using the wrong method but I was unable to find a better way to load the tree.here's and example code of what I mean. this takes about 30 seconds to load into the tree.
Code:
Public Class Form1
Public StringArray(10000) As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Jun 12, 2011
I'm having a problem with part of my application I'm trying to get the directory entry for a computer object in AD (it could be mutiple computer objects based on whether or not the users passes a wild card for the object name). These names would be added add a child node of the parent node "Computers" in the tree view. I'm just having problems with using the search results...
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim parentCNNode As TreeNode = New TreeNode("cn")
TreeView1.Nodes.Add("Computers")
[code].....
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May 27, 2011
I have two form
First 1 is main form name Form1
Second 1 is Form2
i want to get label1.text from form2 into form1.textbox.text
my example code
Code:
Text1.text = Form2.label1.text
this code work if both form are show()
but i want my form2 allways Hide()
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Nov 8, 2010
I'm trying to add 3 customers to an array that I can then display in 4 seperate text boxes on my form. First Name, Last Name, Account Number and Balance.
Public Class Customer
Private firstName As String
Private lastName As String
Private accountNo As Integer
[code]....
Error 2 Argument not specified for parameter 'account' of 'Public Sub New(first As String, last As String, account As Integer, balance As Decimal)'.
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Apr 27, 2010
does anyone know how to make it that when you type something in to a text box the click a button called add to then have what you typed in added to a checked list box and then have it that when you click another button called add that the information in the checked list box which has been checked is then added to a database.would it be better to make th information entered in to the text box be saved to a text document and then have the checked box get its information from the text file if so does any one know how to do that.
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Jul 21, 2010
I am trying to add exception information into a textbox and not able to successfully. I am getting an error when trying to do so.
Screen shot of code and error attached. Any ideas how I can accomplish this task?
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Nov 11, 2010
I have two databases, d1.accdb and d1b.accdb (So I have two connectionStrings). In both of these databases there is a table called Postings with exactly the same fields. All i want to be able to do is query the Postings table in d1.accdb for all the records where the users name is xxx. I then want to move all that data to d1b.accdb. I found another thread that was started in like 2007, and tried to follow their instructions, but cant seem to get it to work. Here is the code I am using:
[code]...
When I run getUserPostings(), i get a OleDbException saying invalid argument. Does anyone know how to fix this? or perhaps know another way to do this?Once i get this to work im guessing i would just add "WHERE UserName = 'xxx'" to the end of the OleDbCommand Strings.
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Nov 28, 2009
I am not sure what I am doing with this and need some direction. I have attempted to create a stored procedure in SQL Server 2005 called proc_GetPrefixes with the following content
USE [CRM]
GO
ALTER PROCEDURE [dbo].[proc_GetPrefixes]
[Code].....
The stored procedure is supposed to get all the records and what I want to do with the result set is to add all the items to a combobox. I have started off with the following and not sure where to go with this:
[Code]....
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Nov 2, 2011
I have this if statement, which returns the result as a AsQueryable to an anonymous type:
If (signature = "") Then
testResults = (From TRTable In context.TestResults
Where ((TRTable.Art_no = currentProduct) And (TRTable.Server_time > startDate) And (TRTable.Server_time < endDate))
[code]....
I can't seem to figure out why it isn't working, it was working without the if statement, but I need that functionality.
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Jul 16, 2009
Here's the situation. Due to the design of the database I have to work with, I need to write a stored procedure in such a way that I can pass in the name of the table to be queried against if at all possible. The program in question does its processing by jobs, and each job gets its own table created in the database, IE table-jobid1, table-jobid2, table-jobid3, etc. Unfortunately, there's nothing I can do about this design - I'm stuck with it.
However, now, I need to do data mining against these individualized tables. I'd like to avoid doing the SQL in the code files at all costs if possible. Ideally, I'd like to have a stored procedure similar to:
[Code]...
Is this even possible in SQL Server 2005? Alternate ways to keep the SQL out of the code behind would be welcome too, if this isn't possible.
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Oct 26, 2011
I have a datatable that is queried from SQL Server database, and it has a numeric column and I want to format it to "###,##0" format for readability reason. I tried:[code].....
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Mar 12, 2011
Several times av been come across of the need of how to create new variables on my application while is running and the next time i will run again the application to be existed in my source code and still be inside.
what excatly i mean is for example i have a listbox with out assigne it in any databound ,or retreive any items from any textbox i just want to insert some items inside
if i go from the designer then i can succesfully add any item i want and they will be there as i declare them.but if i want to to that programmatically i will be able to add them in the listbox but the next time i will run it again it will be lost.until i will select the command again to fill my listbox which is not what i want
in my case i have a datagridview which is running SQL querys and i want if the user selects to save this query i want from some way to save this query string in my listbox . and i want to be there the next time i will run my application with out using any text file or database,
is there any way to that ? i have search before i ask but obviusly my keywords dosen't much with what i was looking for
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Mar 14, 2010
I'm running out of walls to bang my head against. Okay new windows form with a textbox, button and TreeView Populate the TreeView.nodes with the default nodes via properties
[Code]...
I want to click button1 and have the name of the childnode? Node3? placed in the textbox. Not via selection, I can do that. But via index or item number. The code I have is as follows
[Code]...
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Nov 26, 2011
i have a treeview which has a bunch of parent and child nodes preset at design time, there is 1 parent node tho which is called developer, that i want to add child nodes to at runtime.When the form first loads im trying to have it check a text file and for each line in the text file add the text/string from that as a child node tot he 'developer' parent node.
vb
Dim reader As String = My.Computer.FileSystem.ReadAllText(Application.StartupPath() & "ConfigDevs.txt")
Dim strs() As String = Split(reader, Environment.NewLine)
For Each s As String In strs
[code]....
Thats what i have so far, how can i set it so 'Dim parentNode As TreeNode = ' points at the 'Developer' node?
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Dec 5, 2011
I made this procedure re-use a select query:
[code..]
And I use it like this if I would want the selected value placed in a textbox and it works fine
[code...]
However if I want the value to be passed in a string like so:
[code...]
The string ends up having an empty string value. How do I assign the value I queried to that String?
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Jun 21, 2010
I have a database I am creating with about 50 users over a network. There are about 6 groups of users and these users are spread across 10 branches. I want to block/allow users from particular forms and views. For example I want branch users forms to be filtered by their branch number but depending on the group they are in they can only see some forms. i.e. 50 users, 10 branches, each branch has about 5 ppl of where 1 is in group A and 4 are in group B. I want all users that belong to branch 1 to see the information they enter, but Group B enter data but cannot approved or delete, and group A can enter, approve and delete. So then. On my login form I have the user type his/her username but the i want LEAVE function to update 2 textbox where I have named GroupName and BranchNo. Basically to run a query and look for the username and return in one textbox that user's groupname and the other textbox the user's branch no. This information will be used to filter forms and block the user from certain controls. This is the code I have so far but still can't figure how to display the results.
Private Sub UsernameTextBox_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles UsernameTextBox.Leave
'Make Connection to database
[Code].....
It keeps highlighting the BranchNumber and UserGroup and giving error "Value of type 'String' cannot be converted to System.Data.OledbCommand
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