Examine All Installed Services To Determine Logon Type?
Jun 11, 2009
I'm working on a project that requires that I programmatically examine the ServiceAccount of all services installed on a machine (regardless of status) to determine Logon Type which will be used as an indicator of which passwords need to be changed on a machine for maintaining security.
If possible I would like to keep the entire project in VB.Net and Ive been looking through the API to find namespaces that contain classes to allow me to do this. Ive come across System.ServiceProcess which does allow me to get quite a bit of information about services installed, but I cant seem to find a way to get the Logon Type (I would guess that it would be returned as a System.ServiceProcess.ServiceAccount object).Ive also tried System.Management using ManagementObjectSearcher and ManagementObject, but Im not sure if theres a way to get that information with a WQL statement (I know next to nothing about WQL, unfortunately).
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Jun 1, 2010
so my application (Visual Basic 2010) is making use of Image Magick, via the COM object. If the COM is not installed then my application crashes (not surprising). How can I detect if the COM has been installed, so abort and tell the user to install it?
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Mar 8, 2009
I am creating a project with VB2008 Express Edition. The end result will be a CD containing tech manuals in pdf format which will be accessed via various buttons on a form. I am going to include Acrobat Reader Redisributable on the CD which the user can install by pressing a button on the form if required. What I want to do is this:- When the user inserts the CD into the PC, the form will load.When the form loads, I want to search the users PC to determine if Acrobat Reader is installed.If the Acrobat Reader program is not found on the system, then display a MessageBox to inform the user to install the reader from the CD.Would this involve searching the users registry? I would need to insert in my Form1_Load sectionTarget systems would be Windows XP/ Vista with programs on the C: drive as default.
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Aug 20, 2011
I am wanting to create a logon similar to the Windows Live logon, so in other words. user has frmLogon and is located in Australia. The user enters his/her details and then the program connects to a server in the United States and checks the Username and Password to make sure it is correct if it is correct it allows the user to logon and move to the next stage, if it is wrong it will give him an error message. I am wondering if anyone has a tutorial or source code laying around that I can rip apart and see how it works. I want to put the database on my server and connect to it from my desktop using the logon form.
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Mar 17, 2009
I have two separate web services, the first configured to extract data from a live database, the second from a test database.
When consuming these web services from an application the object returned is a MyMessageData class which is defined in the web service.
In the application I would like to instantiate a empty the MyMessageData (from the live web service) and then use a configuration setting to decide which web service to retrieve the actually data from.
This does not work for test because the application does not see the instantiated MyMessageData class from live as the same type as the MyMessageData that is returned from the test webservice. [code]....
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Nov 14, 2005
I installed VS 2005 Beta 2 on a WinXP pro system (numerous times). It finally installed without erreors. It looks like it is basically working - I can create a new windows project and add items from the toolbox, edit the code etc. If I open an existing project (created on another box) things load properly but I cannot open any forms in designer view (I can open them in code view). When I attempt to open a form in design view I get the following error popup:=====================There is no editor available for 'c:....myForm.vb'.Make sure the application for the file type (.vb) is installed.
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Jan 6, 2011
I am running VS 2010 Professional and have a solution with 3 VB projects in it. I can open the forms in 2 of the projects just fine but if I try to open any of the forms in the 3rd project I get a message saying "There is no editor available for .....Form1.vb. Make sure the application for file type (.vb) is installed". Everything was working fine last month and I could open any of the forms.
Again the problem is limited to just the 1 project in the solution.
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Aug 7, 2009
My Visual Studio 2008 seems to be corrupted. I can not use the Windows Forms designer. I get an error about: "Make sure the application for the file type (.vb) is installed." Also, under menu item Tools>Options, it says "an error occurred loading this property page" when I try to look at the options for 'Data UI Customization' under 'Windows Forms Designer'
[Code]....
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Nov 5, 2011
Public Shared Function IsType(ctrl As Control, ByVal thisType As ??????) As Boolean Return (TypeOf ctrl Is thisType) I need a function that I can call, for example, to determine if a control is type RichTextbox.dim z as Boolean= IsType(txtBox1, RichTextBox) I ned to determine if a control is a given type (i.e., not always RichTextBox). I don't know what Type to make thisType. Can this be done?Actually I simpified the problem but if the above is answered I can write the function
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Apr 28, 2012
I want to scan a directory and see what files are NOT bmp image files. As the file extension can lie I need to interrogate the file itself. I found some code here [url]...?ID=112 that does exactly this however it was written for VB5 and is 13 years out of date! I tried compiling it however VB 2010 baulked and I don't have the expertise to make it work.
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Jul 31, 2009
How can I programatically determine if a file with a certain extension (XLS, for example) is really an Excel file and not a VBS file, for example, that has the XLS extension?
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Dec 12, 2009
I need to determine the type of a WinForms control in a collection.
[Code]...
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Sep 6, 2010
I'd like to get both C# and VB.NET sugestion.
I have an ASP.NET FileUpload control, which allows only image type. I used RegularExpressionValidator like below.
<asp:FileUpload ID="fuPhoto" runat="server" TabIndex="40" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator3"
runat="server" ControlToValidate="fuPhoto" Display="Dynamic"
[Code]....
This method will only verify the file's extension, not its actual type. Once I receive the file, I want to examine its contents to determine what it really is, in this case image only.
How do I examine the file content being uploaded?
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Jan 28, 2011
Has anyone found a way to view it numerically?Im sure that for a multithreaded program that a seperate user stack is maintained for each thread?Inevtably. there will be the dunderhead who asks what I am doing. Im in the last stages of developing a multithreaded filescanning program. The program uses a fairly tight loop.
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May 17, 2010
how do you determine cell type of a column?
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Oct 14, 2010
I need to check a value within the registry. The application (Cisco VPN) is a 32bit app so uses Wow6432Node when installed on 64bit operating systems.What would be the best method of selecting which string to use? Checking the OS for x64, attempting to read one and then the other if the first fails? Or is there a better method?
Dim keyName64 As String = "HKEY_LOCAL_MACHINESoftwareWow6432NodeCisco SystemsVPN Client"
Dim keyName32 As String = "HKEY_LOCAL_MACHINESoftwareCisco SystemsVPN Client"
Using .net 4.0 framework?:
Dim registryKey As RegistryKey
If Environment.Is64BitOperatingSystem = True Then
registryKey = registryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, RegistryView.Registry64)
Else
registryKey = RegistryKey.OpenBaseKey(Microsoft.Win32.RegistryHive.LocalMachine, RegistryView.Registry32)
End If
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Jul 31, 2011
I am converting a VB.Net application to C#. Everything else is going great. Except this bit. I have a function which builds menus,sub menus and seperators from a database. It can build a MenuStrip or a ContextMenuStrip which can then be assigned to a form.
This means that menus can be extensive and conpmex but managed outside the application, which I also use as part of my security access model. All menus are controlled from the database externally, it also means I can develop visual tools (Treeviews etc) to manage user menus. The application uses menus extensively which is by design.
Programmatically I want to assign an eventhandler to every item that isnt a dropdown or a seperator
In VB I would do this, (works perfectly)
[Code]...
"System.Windows.Forms.ToolStripItem' does not contain a definition for 'DropDownItems' and no extension method 'DropDownItems' accepting a first argument of type 'System.Windows.Forms.ToolStripItem' could be found (are you missing a using directive or an assembly reference?)"
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May 19, 2009
I am still developing this function, but here is what I am intending it to do. This function will accept an Object, then try to determine its type. There are a specific set of types I am looking for: Integer, Boolean, Date, String. What I have so far is pretty privative, but it seems to be working so far:
Private Function DataType(ByVal entry As Object) As ValueType
Try
If IsNumeric(entry) Then
[Code].....
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Oct 28, 2009
I can't figure out how to determine the type of an object in a collection. I want to do a For Each ... Next loop over the items in the DropDownItems collection of a ToolStripMenuItem. For those items that are ToolStripMenuItems themselves I want to take some kind of action. (The collection can contain other types of items, such as ToolStripSeparators). So I need to say something like: If Typeof(item) = ToolStripMenuItem Then .
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Mar 27, 2010
I have a class C(Of T). I want to determine if some given value has type C, regardless of what T is. For example, I might want to determine if a value is a strongly-typed list, regardless what type of items the list stores. I just need to know how to do it in VB.net. In Java the syntax is like this:
var result = obj instance of Gen2<?>;
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Mar 3, 2011
I have the following VB.NET function, for example:
Public Function MyFunction (Of TData) (ByVal InParam As Integer) As TData
End Sub
How do I, in a function, determine if TData is a NULLable Type?
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Mar 17, 2010
I have a dataset and want to know the data type of a specific column. The GetType returns datacolumn not string or integer etc.iggy!
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Sep 24, 2009
I'm interested in having a generic 'Try Catch' clause, with some case statements or if/than statements within the Catch part so that I can handle different error types differently. some way to get ex.Errorcode or ex.ErrorType that differentiates the different errors to a unique value.
How can this be done?
Try
'some code taht will throw an error'
Catch ex AS Exception
If ex.ErrorCode = 20 then
' Do something'
[Code].....
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Dec 14, 2006
I have the following VB.NET function, for example:Public Function MyFunction (Of TData) (ByVal InParam As Integer) As TDataEnd Sub
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Oct 9, 2009
I have a small piece of code that iterates through the controls collection on a panel (below) Everything works fine until I want to focus on a control that doesn't support the selectall method i.e. a datetimepicker. Is there any way of determining the type of control and not call the selectall method when the type is datetimepicker. All my other controls support it so that's the only one I need to exclude.
[code]...
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Nov 25, 2011
Heres my sub:
Dim onThisTable as String ="Name"
Private Sub skill_mouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.MouseHover, button2.MouseHover, panel1.MouseHover, panel2.MouseHover, pbox1.MouseHover
[Code]....
Now I wish to give onThisTable a different value depending what the user pass over (panel or a pbox or a button) but I cant find what is the correct way to compare what type it is ...
Private Sub skill_mouseHover(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.MouseHover, button2.MouseHover, panel1.MouseHover, panel2.MouseHover, pbox1.MouseHover
[Code]....
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Nov 14, 2010
I've created the following basic function to determine whether specific control type is currently loaded:
Private Function IsPreviewerTypeLoaded(Of T)() As Boolean
For Each previewer In LoadedPreviewers
If previewer.GetType().Equals(T) Then
[Code]....
I need to compare each control against the generic type supplied. Equals(T) fails to do the job, producing a compiler error. How to make it correctly?
UPDATE: is the following correct?
previewer.GetType().Equals(GetType(T))
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Sep 7, 2010
I am customizing a DataGridView control. The DataGridView is supposed to be bound to a collection of some type (be it a List(Of T) or ArrayList or whatever), and the idea is that one can easily determine (at design-time in this case) which properties of the type have to be shown in the grid and which column header name they should get. One can do this using an attribute. For example, if I have a class Person with Name, Age and HairColor and I don't want to show the HairColor property, and want to show the Name property as 'Person', I would use:
vb.net
Public Class Person
<Grid.GridOptions(displayName:="Person", visible:=True)> _
Public Property Name As String
[code]....
I do this during run-time by simply looping through the properties of the bound type (in this case Person), retrieving the GridOptions attribute (if any) and checking the values provided. This works just fine except for one thing: I'm not really sure how to determine the type in the databound collection...
At the moment, I cast the DataSource property to an IList and retrieve the type of the first instance in that list (if any). If there isn't a first instance (the list is empty) then I don't know how to get the type... Often I know that it will be impossible to know the type. If someone is binding an ArrayList for example, then it's impossible to know what kind of items he's going to put in that ArrayList. Even the normal DataGridView cannot show any columns when databound to an empty ArrayList. However, the framework's DataGridView does show the columns when bound to, for example, an empty List(Of Person), or a Person array.
I'm pretty sure that casting the DataSource to an IList is not the correct way as all information about the type of items in that list is then lost. But I'm not sure what else to cast it to... ITypedList? IBindingList? I even considered List(Of T) because that's all I am going to be using, but besides the fact that the grid would then obviously only work for a List(Of T) I still don't know how to do this... I don't know 'T' so I can't cast it to a List(Of T)...
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Jun 23, 2012
I had a look through the documentation on the Wiki, but it seems a bit thin. How do I determine if a type implements a given interface using Cecil? For my particular implementation it is important that I do not actually load the type into the AppDomain.m Here's the code that I have so far:
Dim outputModule As ModuleDefinition = ModuleDefinition.ReadModule(outputFile)
For Each assemblyType As TypeDefinition In outputModule.Types
'How to determine if assemblyType implements a specific interface?
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Jul 3, 2010
I am using VB .Net for this, so I don't have access to var or this would be a simple matter.Right now my query is as follows
[code]...
So I used this query in LinqPad to help me determine what the object would look like. I got back a IOrderQueryable(Of RSError) which then contained a IGrouping(Of String, RSError) for each grouped collection of objects returned by the query.However I ended up with the current object type of errors as IOrderedQueryable(Of IGrouping(Of String, RSError)) because of the cast error I am getting in VS.
[code]...
I'm not sure how to get rid of the VB$AnonymousType_1 Part of the returned object.Am I even on the right track here or am I missing something completely?
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