Load User Controls From A Directory?
Oct 10, 2011
This is an odd question but can I load custom controls from a directory? (e.g TestControl.dll) in my application at runtime instead of adding a com reference?The reason I am asking is that I have an application that is installed as an add-in for MS office. The entire interface is a panel that contains a user control. Initial installation is a bit involved so after the first install, I would like to use clickOnce to deploy updates by just supplying new user controls.
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Jun 4, 2009
I am currently wokring on a project, which is going to serve as an interface for accessing various documentation and reports. It is basically just a tabcontrol with a few pages that will be poppulated with buttons which will open the appropriate document.I am trying to allow administrative users the ability to add new, edit or remove buttons which all seems relatiively simple, but have run into the problem of how to persist the changes once they are made. I want the setting to be stored centrally, either in a SQL table or on a network share
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Aug 23, 2011
There is newer code in a follow up post. I suggest using the code in the later post rather than the code in this one. You can still read this post though. When designing a user interface, one should be conscious of how many individual controls are required to implement the functionality. In some cases an initial design may begin with many buttons or textboxes (for example) but then further review of
the actual required functionality allows for a reduction in the number of unique controls.
But other times, there isn't a better way (which will still make sense to the user of the application) then to have a series of many repeated controls. So in the cases where one can be certain that the best UI implementation for an application will require the use of multiple copies of a given control, then it often becomes necessary to maintain some method of managing all of those controls at various points
throughout the application. Doing so typically requires that one build up some collection of controls which can then be accessed by index in order to work with any given control; but this can lead to a lot of clutter in the code file which handles these control's events. For instance there will be some kind of collection declaration, some recursive routine to find all of the controls of interest, and then any number of event handler methods with long lists of Handles clauses, or additional code loops to wire up the event handling for each control.
Purpose Since most of this functionality could be considered a requirement regardless of the type of control being managed, or its required functionality, it may make sense to wrap all of the control management functionality into a single class. And since our first requirement is a collection of controls, then a base collection class could be the perfect starting point for our control manager. There are a number of existing thread around this topic, with some recent (at the time of this writing) ones being:[URL]..In this, and related, threads I have posted examples of a simple TextBoxManager and ButtonManager control. But again, with so much similar functionality required regardless of the control being managed, it would be technically possible to create a generic ControlManager(Of T As Control) class which can manage any type of control.
[Code]...
So in summary, one can facilitate managing a large number of user interface controls by building a "control manager" class which both encapsulates the list of control instances, and deals with adding and removing defined event handlers for every control it manages. The generic control manager class itself can be inherited and extended into a more specific class on a per-application basis in order to provide more application-specific functionality. Reed Kimble - "When you do things right, people won't be sure you've done anything at all"
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Jul 23, 2009
I know how to do this:
PictureBox2.Image = Image.FromFile("C:Documents and Settings1A.jpg")
But s here way to do something like this:
If category = 1 then
[code]....
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Feb 25, 2009
Rudimentary folder structure:
<root>
---<admin>
------index.aspx
------[other files]
---index.aspx
When I navigate to mywebsite.com/admin/, all I get is a directory listing. How can I get it to load up index.aspx automatically?
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Jun 13, 2010
How can I do it so every time the user loads my application it will automatically (without prompt, or user selecting) upload all the files in a folder i select beforehand and add them into ListBox1
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Sep 27, 2011
I have some custom user controls in my .net winforms program that do not display correctly when the user has selected larger text size. This setting:
My controls look like this:
Instead of like this:
The bill to area and ship to area are both custom controls. I don't know if this is contributing to the problem but I do have code in each to scale the phone/fax areas to stretch nicely, like this code from the bill to control,
Private Sub panFaxPhone_Resize(sender As Object, e As System.EventArgs) Handles panFaxPhone.Resize
panFax.Width = (panFaxPhone.Width / 2) - 1
panPhone.Width = (panFaxPhone.Width / 2) - 1
panFax.Left = panFaxPhone.Width - panFax.Width
End Sub
How can I get my controls to size correctly while still respecting the users choice for larger text (I don't want to just set the AutoScaleMode to None)? After playing with this for a long time it seems to be a problem with anchors in the child controls. See this below image, the inner black box is the control with its border turned on, the text boxes (like name) are anchored left and right and should stretch to fill the control, but don't.
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Jun 2, 2012
i have a windows from project and in that project i created a user control lets call itcustombutton1 now i can use that control quite easily either at design time or runtime by creating a new instance of it like
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Jun 15, 2012
I just made my first .net website. I'm trying to use the following line of code to load a file from the current directory ( same diredtory all the web files are in). I get a error saying file does not exist
InstallFormTemp = My.Computer.FileSystem.ReadAllText("installerform.html")
I copied the file to my c drive and chnage the line to
InstallFormTemp = My.Computer.FileSystem.ReadAllText("c:installerform.html")
it worked, but now my site has to run a godaddy's webserver, so I cannot save stuff in the c drive, just my web directory.
How can I get My.Computer.FileSystem.ReadAllText to read files from the websites current directory?
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Oct 3, 2011
I am attempting to load all images from a directory to a FlowLayoutPanel. I am using the GetFiles() method to retrieve the files with a filter to just retrieve JPG files. When I run the program, it returns 'Conversion from string "*.jpg" to type 'Integer' is not valid.' exception. The offending line of code is:
For Each foundFile As String In My.Computer.FileSystem.GetFiles(FolderBrowserDialog1.SelectedPath, "*.jpg")
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Jun 28, 2010
I have a directory with xml files inside, inside each xml file is the following data:
<Email>Abella@hiphopfan.com</Email>
<UserName>Abella1203810</UserName>
<PassWord>oxqzobbr23</PassWord>
I need to loop through each xml file in the directory and use the xml nodes <Email> & <PassWord> to programmaticly log into an account.
vb
Dim directory = New DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) & "Accounts")
[Code]....
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Oct 13, 2010
I have a program that allows the user to choose from 100's of .rtf files and .loadfile them into an rtb. When I build and then deploy the program (version1.0) how are the files that pre-exist on my drive end up available on the users drive to be able to load them from the specified directory? Do I need to make the .rtf files a resource? Or is this process simply "done" when user installs app? By the way, I am using Visual Studio 2008 (Visual Basic).
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Dec 2, 2009
How many controls can I have before I should start looking at user defind controls because of too many controls making my program go slow?
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Jun 9, 2011
I'm new to VB.net and i wanted to find out how i could load the names of files(in a specified dir) into a combobox?
1. get the number of files in specified dir
2. add names of files as items in combobox (using a loop structure)
3. when an item is selected. display the contents in a textbox[code]...
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Jan 5, 2009
I'm working on a emulator program where I load all controls from a database. My database looks something like this :
Code:
IDPageTypeControl_Indexnr Property Data
1131Label 1 Text Lbl1
1161Label 2 Text Lbl2
[code]......
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Nov 13, 2010
I have an app that before it loads the form it uses Location to place the controls in the wright place.When it loads up I can see their original outline before they are displayed in their new location.So I have moved the the sub before the form load event but the result was the same.I also tried me.control.clear at the beginning of the formload.But I cant seam to find contrl property that allows to show all
Private Sub control_location()
CWgroupconfig()
Buildergroupconfig()
[code].....
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Nov 24, 2011
I am performing a migration on a vb6 program, to vb.net. The basic knowledge you need to understand this question is that there are two forms that need to talk to each other, frmInput1 and frmInput2. I have the following code (behind frmInput1) that checks if a textbox on frmInput2 has a certain value, seemingly before it has loaded:
[Code]...
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Oct 16, 2011
I found this mystifying in VB6 and it's still here...
For example - I have a combobox on a form and I have put some code in its SelectedIndexChanged event. The problem is that I want this code to be executed *only* when the user clicks on an item in the combobox dropdown. Why is it then that it gets executed when the form first loads? And how do I stop this happening?
I used to use a "FormLoading" boolean to decide whether or not the code was executed but this surely shouldn't be necessary. Is there a better way?
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Feb 15, 2007
I would like to have all properties on a user from active directory. I find some property name as :
distinguishedName, SAMAccountName, sn, givenName, TelephoneNumber, mail
If you have a list of property? As each user has an ID in AD ?
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Aug 5, 2010
i am wanting to add handler for controls i add at Page_load at page load i added several image buttons and applied the image urls using -i used the borderwidth propertiy for padding as was having trouble getting a cssclass to work. [code] what i want these Image button to do is when clicked a larger image in another panel will appear so i will need to assign the clicked buttons image url to the large image controls, image url
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Nov 9, 2010
I wrote last week about a problem with an MDI program that had a large number of forms (each with a large number of controls on it) that was "sluggish" in loading and in switching between the child forms.I've attached an example program in VS2008 (though the actual app is VB2010)Rather than show the hardware control application with all of the text fields, and picture boxes acting as indicators, I made a simple program to show the point. This is exaggerated as this just loads 2000 or so text boxes on a form. In the real app I have ~ 200 assorted controls per form of picture boxes, scroll bars, text boxes, labels etc. Also, there is a large full screen .jpeg as the back ground of each form. All are generated at run time and are placed on the form in the New call of each form. (as in the sample attached)main issue seems to be the methodology I use to switch between child forms. I make the current form .visible = false, and the next.visible = true. I have used this as it "keeps the place" on each page if the user has scrolled or is looking at one section of the form. When the next form .visible = true happens I see the controls added in a "machine gun" fashion instead of all at once.
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Aug 6, 2010
I am trying to create a VB.NET application which will (hopefully) reduce some time spent on some of my departments helpdesk calls. The part that I am stuck with is how to use VB.NET to remove a user from a group. The following is code that I have been playing with:
[Code]....
I am coding in .NET 2.0 as I am unsure if the server it will live on will have 3.5 installed.
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Apr 27, 2012
I am trying to add user to a Active Directory group which i already have access to but i am getting an error "Unspecified Error" Ca you guys please take a look at my code and let me know what i am doing worng?
Public Sub adUserToGroup()
Dim Buf As String = ""
Dim sDomainName As String = ("LDAP:servername.cfe.kineeg.com")
[code].....
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Feb 9, 2011
I've developed a Windows Form application that contains a function where a user will query AD using a users last name in an attempt to get a list of all domain users that contain all or part of the last name. This function works well if the user is an administrator, however in some cases a department manager, who only exist in the Domain User AD group, needs to use this function. When the user with only Domain User rights uses the function all queries come back empty. I can take the same application to another domain and user with just Domain User rights can use the function just fine.
I assume that the first domain that I mentioned might be using Group Policy to prevent Domain Users from making a query against AD.
Is it truly a Group Policy or some other setting within the domain that prevents this?
The current administrator of the first domain I spoke of is fairly new and has no idea of the workings of AD or Group Policy. All domains that I mentioned here I believe are running Windows 2003 Domains.
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Aug 17, 2010
How to enable a Active Directory User Account By using vb.net CodeSHYAM
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Feb 15, 2011
I am building a simple intranet site and I want to get the user's Active Directory.What steps do I need to take on the IIS side for this to work?Are any changes required to my web config? detailed explanation, as this is giving me a hard time.I have tryed things like this
Request.LogonUserIdentity.Name.ToString
also
HttpContext.Current.User.Identity.Name
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Mar 8, 2011
I have created a desktop application in vb.net 2005. I have added some custom .dll(s) in my project. When i deployed the application on users computer i see that dlls are present in bin folder of the application. When i remove those dlls the project failed to run. Is there any way that i can hide these dlls from users directory.
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Jan 7, 2011
Right now I have controls that are in my update panel and change the data in my gridview they work fine, but then i thought it would be cool to have the controls in the header of my gridview. But when i add them to my header and hit the button/run the function i get the failed to load viewstate error.[code]
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Sep 1, 2011
I am a programmer for 6 years with VB6, now I am using VB 10 Express and working with Active Directory for the first time. I have been able to make a lot of things work with AD.I have been trying time and again to make this work. I have been googling and trying samples and keep running into one error after another, the latest is a [code] "There is no such object on the server."[code] My objective for this is to move the user account from the office OU to the Disabled OU. I have been fighting this for so long that I am going crosseyed.[code]
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Jul 14, 2009
Active Directory User Group Membership
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