I am using a DLL in my application that will probably be experiencing frequent updates. I want the DLL to detect the new version (I know how to do this), load the new version of the DLL into memory, and continue running. Is this even possible? So I need to know how to: Unload the current DLL. Load the new DLL. If possible, do this from the DLL in question. Is this even possible? If not, how close can I get to this?
I'm trying to make my program have plugins that don't require real installation. My plan is to have the plugin consist of two files:a dll file, and a xml file describing the dll so the program knows what to do with the dll. However, I have NO idea where to start.I've referenced dlls and used them in my program before, but that was BEFORE compileing the program. Could someone please point me in the right direction? I am using Visual Basic in Visual Studio 2008 Professional.
Public Class Form1 Dim S As MSWinsockLib.Winsock Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
I'm trying to browse to this page using the web brower in vb and whenever I do so it gives me a runtime error:If I click No(Nee) it loads the page fine it basically says:[code]So this is what gives the error, now is there any way so I can disable the run time error from coming up at all? [[code]
I've got a code sample below that will compile, but not run. Start it in the debugger by clicking the "step into" button on the toolbar, and an exception pops up before it reaches the first line of user code:
"Could not load type 'TestPrivileges.Win32Module+TOKEN_PRIVILEGES' from assembly 'TestPrivileges, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'."
Comment out either the 'Dim ... TOKEN_PRIVILEGES' line in the module or the 'Public Shared ... TOKEN_PRIVILEGES' at the end of the class, and the problem will stop occurring.Visual Studio 2008 as well as 2010 does it.
Module Module1 Sub Main() Dim newState As Win32Module.TOKEN_PRIVILEGES = New Win32Module.TOKEN_PRIVILEGES MsgBox("Here I am")
i have a problem with loading forms in VB and i was hoping someone can help me. this is the code i made:1st form.form name: formload.vb [code]now the thing is whenever the loginform appears when i successfully entered the accounts the form the userinterface will appear and the loginform disappears for a few seconds then reappears again.i wanted the loginform to disappear the only form that is visible is the userinterface.how to make database of accounts where the login form depends on?
I've got a database that's 13,000 lines long and I'm trying to load this into a string array when the program loads but it takes approx 5-6 minutes for it to load it.I've got a MS Access database or an Excel file that I can load this information from, each has two rows: SVONo, Description This is my current MS Access
[code]...
Does anyone have any idea of how to make it faster? Or does anyone have a better way?I did have the idea of loading it by letting the user select the first letter and then only loading the ones that begin with that letter but I've got 4000-5000 'S' ones and it still takes about 2-3 minutes to load it All I want is to load the data from the database or the excel file and then put the products into 'cboProducts' and the 'cboProducts AutoCompleSourceList' and the descriptions into the 'txtDescriptions' AutoCompleteSourceList and a string array.Then when the user selects a product using 'cboProducts' the description will automatically be put into 'txtDescription'.
I am doing a project for part of my coursework which involves the creation of a series circuit designer.
I am having some trouble with the saving and loading functions; I had intended to save them to a text file with commas separating the component name and the value (if any) attributed with it.
Grid(xcoord, ycoord, 0) contains the component name. Grid(xcoord, ycoord, 1) contains the attached value (resistance or voltage- components such as wires have a value here of 0)
Once the save button is pressed, the text file contains 50 rows of "0".
P.S. Let me know if any other parts of my program are required.
Dim comp(maxsize) as ccircuits[globally declared] Const maxsize = 50 Structure ccircuits
I have a main form when loaded will display a login form. I want that when the main from loads, the login form and another form will be loaded side by side.How do I show two modal forms?
I have a desktop application that shows a list of pdfs, and when the user selects one it shows it to him/her. I use the AcroPDF control for this, and it seems to work, but if the user goes back and forth between viewing the file and viewing the list, then the control randomly decides not to show the file (showing a blank page instead).
Instead of loading a crsytal report from a path like this:myCrystalReport1.Load("C:Program FilesAstec IndustriesPlantDailyShiftReport.rpt")Is it possible to include the crystal report in the solution and load it from there? I've used this is asp:
Dim myPath As String = (Server.MapPath("PlantDailyShiftReport.rpt")) myCrystalReport1.Load(myPath)
I have been given the below form but here i cant understand the use of this checkbox named LoanCredit card number.I am told that when user checks it then all master data will be displayed. does it mean that when i am entering some data in the database then the data will not not appear in the dropdownlist of the creditcard no. combobox automatically,on checking the checkbox the creditcard no. which is saved in the database will be added in its dropdown list? again when i uncheck it then again the dropdownlist of the combobox will become empty?
I have a main form when loaded will display a login form. I want that when the main from loads, the login form and another form will be loaded side by side.How do I show two modal forms?
I am currently developing an application that will be the "base" for several components (business reporting systems, order management, etc). The idea is that our customers will install this "mother application", and we will offer components that will slot into it, expanding the functionality.
Now, here's my idea for how to make this work. I have some of this basic functionality down, but I want to get other people's opinions, ideas and experiences with this sort of thing before I move too far in a direction that might not be the best way to go:
I am currently trying to load an XML file into my app. However, it keeps throwing an exception error (InvalidOperationException - Object reference not set to an instance of an object) and I can't work out why. have a look at the code below and see if you can spot the error? I'm still very much a beginner so i'm sure it will be something simple..
Public Class FrmXMLReaderTest Inherits Form Friend WithEvents txtOutput As TextBox
Why my form loads takes time the first time I clicked the menu to load it (I even see not responding on the title bar), but when it is already loaded, I will close it and clicked the menu to load it again then it load fast already....
Here is what I have in my declaration section Private cnn As New SqlConnection(My.Settings.MyConnectionString) Dim cmdLocked As New SqlCommand Dim daGrade As New SqlDataAdapter Dim daLocked As New SqlDataAdapter Dim builder As New SqlCommandBuilder [Code] .....
I have a menu which when clicked will load form which take quite sometimes (although not very long) but the user keeps on clicking the menu and so the "not responding" message appears on the title bar of the app. I am thinking of displaying "Loading....Please Wait" so that users will stop clicking the menu or will wait until the loading of the form is completed. I tried these code but the form is still displayed even if form has loaded completely. [Code] I like to use the same concept also when the user clicked the save button, to tell the user to wait while changes are being saved.
i have a listview and everytime I load a 10,000 data my listview hang up. Is there any alternative on how to load data to listview that will not hang up.
am trying to load data from an excel worksheet & its really giving me headache. A particular column contains both string and numeric data. its picking only the numeric data & loading the string data as blank entries. I tried checking what may be wrong, i think i saw a documentation that says Excel scans the first 8 rows of a column & determines it data type.plz, how can i load everything on the sheet (i can get everything as string, but i dont want to lose any entry)
I have a form with about 50 controls on it. labels, check boxes, combo boxes. text boxes and so on. Now I have a image on the back ground of the form and have made the checkbox text with transparent back ground so the picture can show through. the problem is that it is so slow to load. I see each one appearing on the form one by one. I have tried this on multiple machines and it does it on all of them. I have tried making the checkboxes not transparent but it still is slow.
how can I allow the form to load completely before it displays it. This is the initial form that loads and shows up.
I am trying to load CustomerName and PrintStreamACNO from tblCustomers to my dropdownlist. I am not getting the correct syntax on the binding and displaying.
Imports System Imports System.IO Imports System.Reflection Imports PSXSTL.Data Imports PSXSTL.Data.DataAccess
I am trying to load contents of an Excel file in a datagrid. The data in the Excel file is arranged in rows and columns. Every column has a column header. Now here is the anomaly. For some reason when I put a less than sign (<) before some of the values in the last column, the values become blank before they are loaded into the data grid. This behavior is not observed when the less than sign is put into the other columns. More strangely the values are retained in the datagrid even if the the < is put before the values of the first few rows of the last columns within the Excel file. I used the following code in loading data into the Excel file:
Dim con As OleDbConnection Dim da As OleDbDataAdapter Dim ds As New DataSet
Im having a problem loading a html file to a webbrowser in a program im writing. What it does if I press a button or menu item a form is loaded and a html help file is loaded to the WebBrowser1. here is the code
Public Class frmWeb Private Sub frmWeb_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim path As String
this is a reference to the thread:he problem I was having while loading data into a datagrid from Excel is solved when I have changed the connection string property IMEX to 1 in:
HTML con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & filename & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1;""")