What I am trying to do is have a button that will pop up a dialog to where you can select a directory. Then the path of the directory will be placed in a text field.Click Button > Dialog Pops Up > Select Directory > DirectoryField.Text will equal "C:Program FilesStuff"
View 3 RepliesI would like to modify SaveFileDialog to instead save a new directory (which will contain new files automatically generated for the user based on the name of the directory). I can produce the necessary code to carry out the intended functionality, but I want the dialog to prompt for a 'folder name' instead of 'file name' and to not display 'save as type'. Is this possible? Is there a better solution for a create new folder/directory dialog? I know about folderbrowsedialog, but I need to force the user to name a new directory and identify the location
View 8 RepliesI am retrieving some pictures from the images in my Picture Box on the form I added my "images" folder to the bin/debug folder , and used the code for retrieving images from this directory.
Dim myDir As String = Application.StartupPath & "images" '-- my folder for images
i am working on my search button that searches for the items in my listbox1. however, i have several problems.. one, is that i do not know how am i supposed to search in folder browsing dialog and two, i cannot search for the items inside my listbox1.
For Each foundFile As String In My.Computer.FileSystem.GetFiles(My.Computer.FileSystem.SpecialDirectories
_MyDocuments, FileIO.SearchOption.SearchAllSubDirectories) --> Note 1
[code]...
note 1: i want to change the directory to a folder browse dialog not in my documents only
note 2: this are the items in the listbox that i am searching for
note 3: if found, the paths of the items will be displayed in this listbox
note 4: if it is not found, it will be displayed here
I'm running in to a bit of a strange error with an application I'm writing. I have a number of shortcuts on my computer desktop that take me to my various folders (documents, music, etc) and have always been able to navigate using them when I open a file through applications such as Word. However when I use an OpenFileDialog box in VB.NET and select one of these shortcuts to take me to the file I'm after I am getting the following error message...
View 3 RepliesI am trying to find a way to allow my users to choose the directory to save files into, THe file name is automatically generated as it has a naming convention and i am able to pre program a location to save to but i d like to be able to allow my users to decide themselves which directory they want to save the files to and to have the ability to choose which directory to save to
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How do you provide an image to the program, so the program finds that image on the screen and tells its coordinates. So if I was to provide an image of the start button, the program would tell the coordinates like (2,1000) or something similar.
View 13 RepliesI have a simple desktop application that uses a .NET setup project (.msi file) to perform the installation. On the first installation, everything proceeds in a timely fashion with good feedback for the user.The problem occurs when the user is installing the latest version of the application over an old version on their machine.There is an unacceptably long delay of about 60 to 180 seconds from the time the installer's 'Welcome' dialog [It's not the Welcome dialog, I've removed that from the Start section of the setup project and replaced it with a CheckBox dialog to ask if the user wants a shortcut on the desktop] disappears until the 'Progress' dialog appears. The user sees minute(s) of blank screen and thinks the install has stopped or failed.
In the setup project properties, I've got the 'DetectNewerInstalledVersion' and 'RemovePreviousVersions' properties set to true. So, I believe that while nothing appears to be happening, the installer is actually removing the old version. The 'Progress' dialog does not appear until the new version begins installation.I've been trying to either:
a) Get the 'Progress' dialog to display immediately after the 'Install Icon' dialog disappears
b) Show another dialog while the Uninstall is running to let the user know that the setup is still running and everything is OK.
I have been unsuccessful with both methods. I'm using VS 2008 SP1?
Can I create new dialog results for my dialog forms? And then use them with Form.ShowDialog method?
View 13 RepliesIs there a way to launch a Modeless Dialog that stays active even when a Modal Dialog is launched? Can I put the Modeless Dialog in a seperate Thread or something like that?
View 3 RepliesI often use the process of displaying a dialog from a form, with the dialog user input then used to update the main form without any problem. In a new scenerio I launch the main application screen, I then show a login dialog ontop of the main app screen and can launch another dialog from the login if a new user is required. The plan is to update the login dialog (updating a combobox to reflect the addition of a new user) from the new user dialog.
See code below :-
'Update login forms user list as new user added successfully
frmRoomBookingLogin.cboLogin.DataSource = Nothing
frmRoomBookingLogin.txtPassword.Text = "Updating password from dialog"
MessageBox.Show("The password text is " & frmRoomBookingLogin.txtPassword.Text)
[code]....
The messagebox implies the dialog has been updated yet the text does not change. Is it possible to update the dialog when using a setup such as Form -> dialog -> dialog? I'm intrigued as why the dialog does not reflect changes. I have never refreshed/repainted the dialog as never required to in my other examples when updating a form from a dialog and never encountered a problem when using a two tier form setup.
sample_form.rtf (1.48MB). Number of downloads: 36. I have a working form to give specific choices to the user and retrieve the user's choice. (See code below and attached image in WordPad file.) I know I can use a global ("Public") variable to pass the text of the three choices from the calling form to the called form, but is there a way to pass these from one form to the other exclusively? Of course, my main objective is to have as little memory being used as possible. I would like to make the form in my example (frmDialogChoice) a generic form that can display any set of three choices.
code within calling form:
Dim intSwitchToMake As Integer
Dim insFrmDialogChoice As New frmDialogChoice
insFrmDialogChoice.ShowDialog()
[CODE]....
The following VB 2010 code runs, but returns only a black bitmap. I suspect the problem lies with the call to GetCurrentObject but I haven't been able to find good documentation on the arguments for it.[code]
View 9 RepliesObtaining content of other application's ListBox
View 4 RepliesWhat is the best way to go about retrieving data from a proprietary hardware device that interfaces via HID USB? The particular device I need the data from is a blood-pressure/heartbeat measurement & monitoring device.The hardware came with software that downloads the data from the device and places that data into a (passworded/encrypted) MS Access database that I cannot connect to using programmatic methods, at least not without having the (admin's) password. The software provided produces reports, but the formatting renders them virtually useless (well, completely useless) for the needs of our company.
The device manufacturer provides to it's customers no API or any other technical information for accessing the data produced by their product; so, this pretty much leaves me stuck trying to figure out how to obtain the data via custom application in order to reclaim the initial justification for the expense associated with the hardware, which by the way has already been purchased.I don't need code snippits specifically, though examples would be nice; what I really need is to know is how to best approach this project, from a general design and programming stand-point.
I want to be able to search the windows event log (security) on our 2008 DC to find out when a certain user logged in. Using the system.diagnostics.eventlog namespace I can search and view information based on the event Id(4624) but I cannot work out how to display the login name of the user.
View 3 RepliesI am developing a software that would scan the image in a picturebox and obtain the rgb values of each pixel in the image and convert each rgb values to HSL values. I am using vb 2008 express edition. I am still a student. I am just starting to learn vb 2008. All I have done is to obtain the image in a file and paste it in the picturebox. Below is my code. I dont really know how to start with the process of obtaining the rgb values of each pixel and converting them to HSL values and averaging the HSL value.
Code to obtain image:
Option Strict Off
Option Explicit Off
Imports System.IO
Public Class Form1
Inherits System.Windows.Forms.Form
[Code] .....
I still do not know how to start with the process of obtaining the rgb value for each pixel.
I need to obtain the target of a shortcut (.lnk) file using Visual Basic 2008 or 2010 under Windows 7.For Windows XP and VB 2005 I used the Windows Script Host Object model and DLL, like this:
Imports WSH = IWshRuntimeLibrary
. . . . .
Dim MyShell As New WSH.WshShell
[code].....
I am developing an application to be deployed on an XP Tablet edition PC. I am interested in monitoring information (e.g. Channel, AP MAC Address) about the Access Points that I am connecting to to location where in the facility a given Tablet PC is operating in.I have been unsuccessful in finding any code samples/snippets showing information on how to retrieve this sort of information.
View 1 RepliesCurrently working with converting SQLException error messages into messages that are more useful for the end user. My largest issue has been finding the information I'm looking for.For instance, error code 8114 is
"Error converting data type [Type1] to [Type2]" And error code 8152 is "String or binary data would be truncated"
Using ADO.NET in VB.NET with SQLServer, is there a simple way to figure out which columns are affected by these errors?
I've been looking into a way to obtain Parent Processes and then list them in a TreeView so I can list the child processes as child nodes However, it doesn't look like the framework has any built in methods. I thought I heard something about MS putting it in the .NET Framework 4.0. But, that's irrelevant at the moment.
Since there are no specific methods, is there still some way I can manually retrieve this info? Or would have have to use some unmanaged code? Maybe an API?
I have an assignment due this week in which I have to make a app that has 5 buttons and a picture box. When each button is clicked it has to show the corresponding picture in the picture box, the fifth button closes the app.
I have the whole form set up the way it should be, but I have no idea how to write the code to make the buttons display the images and close the app.I have the images in a folder within the project folders.
I have yet to be able to find one, the one I found should how to do it using a file opener dialog and a folder browser dialog but that is not what I think my prof wants us to do, as that is more for a picture viewer app that lets the user choose the file of the image they want ot view.
All i want is for the buttons to be linked to specific photos that are part of the application itself and have them open.
Is there a way to launch a Modeless Dialog that stays active even when a Modal Dialog is launched? Can I put the Modeless Dialog in a seperate Thread or something like that?
View 12 RepliesThere is Notepad opened.How can I display the full application name from the taskbar into label1.text.
For Example:
Label1.text = Untitled - Notepad
or
Label1.text = Whatever - Notepad
Can I check the applications if they contain the word "Notepad" and if they do then display the whole name in label1.text?
From what I'm finding, there doesn't appear to be any particular function available to obtain the value from a particular field from a double clicked on row of a datagrid...
So if you wanted to double click on a particular result in a datagrid, then pass one or more of the values of that row, you couldn't?
I was thinking something like this, but of course that doesn't work, any ideas?
Private Sub InventoryDataGridView_CellContentDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles InventoryDataGridView.CellContentDoubleClick
Dim invID As String = InventoryDataGridView.CurrentRow(???ParticularField???)
End Sub
I'm trying to obtain name/value pair of enumeration typed into text box with LINQ. It's OK with name, but when LINQ reaches values, it throws error: "Conversion from string "Black" to type 'Integer' is not valid". I have read that if I want to obtain a value, then I gotta use conversion function.
Here's code (button's Click event):
Private Sub GetEnums(ByVal sender As Object, ByVal e As RoutedEventArgs)
lstEnums.Items.Clear()
Dim typeName = Type.GetType(txtEnum.Text)
Dim enums = From en In typeName.GetEnumNames
[code].....
Is it possible using Reflection or some other method to obtain a reference to a specific class instance from the name of that class instance? For example the framework for the applications I develop heavily uses public class instances such as:
Public bMyreference as MyReference = new MyReference
Then throughout the application bMyReference is used by custom controls and code. One of the properties of the custom controls is the "FieldName" which references a Property in these class instances (bMyReference.MyField) as a string. What I would like to be able to do is analyze this string "bMyReference.MyField" and then refer back to the actual Instance/Property.
In VB6 I would use an EVAL or something simular to convert the string to an actual object but this obviously doesn't work in VB.net. What I'm picturing is something like this:
Dim FieldName as String = MyControl.FieldName ' sets FielName to bMyReference.MyField
Dim FieldObject() as String = FieldName.Split(".") ' Split into the Object / Property
Dim myInstance as Object = ......... ' Obtain a reference to the Instance and set as myInstance
Dim myProperty = myInstance.GetType().GetProperty(FieldObject(1))
I've been going round in circles with this for about 30 minutes.
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Pretty simpe, I want getText to receive the text from each selected item in the list box.
The first one plucks out chars from the first selected listitem only The second gives me the listindex of each selected listitem The last gives me the text but only for the first selected listitem
What is the VB2010 mechanism for obtaining a form's handle?
View 1 RepliesI need to obtain the characters of a "string" from certain word (word "Repair") and including this word. This word is never in the same position.
Example string:
"Model: Machine: abcde Repair: getthis!"
I need to get: "Repair: getthis! "
Other example
Machine: dddddd Repair: hi"
I need to get: "Repair: hi"