Call Function From Custom Dll File At Runtime?
Jan 17, 2011I wanna make a program that asks the user to enter a dll file path/name & a function in that dll file with args & gets the results
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Custom Validator OnserverValidate Call Class Function?
Mar 9, 2011I am trying to call cetralized class function ONservervalidate for a custom validator, So I don't have to write it on each and every page.
View 1 RepliesVS 2010 : Convert A DLL Function Call Which Has The Callback Function Routine Called Within The DLL Function Call?
May 25, 2012I am trying to convert a DLL function call which has the Callback function routine called within the DLL function call.The DLL function call signature is like this:
typedef void *HANDLE;
typedef HANDLE HACQDESC;
DECLARE_HANDLE (HWND);
[code]....
how to convert this DLL call to VB.NET and also how to create the callback function and send it as parameter to this function
call.
Call A Function In Code Behind File In ASP.NET?
Mar 26, 2009I have ShowValue working. Now, on the last line I need to call the function newFunction to repopulate the dropdownlist object on the onClick event.
I am getting errors when I click the dropdownlist down arrow.
How do I get the two to hand shake with each other?
My code:
Public Sub ShowValue(ByVal sender As Object, ByVal e As System.EventArgs)
lblupdatePanel.Text = DropDownList1.SelectedValue.ToString
Dim LocationDescription2 As DropDownList =
[Code].....
Call JS Function From CodeBehind File?
Oct 24, 2011I am having trouble accessing a Javascript function from my code behind file. I need to do this as I am using the GoogleMaps JS API to add markers to a map based on addresses retrieved from my database. I have a function called AddMarker that takes in the address as a parameter, so I need to be able to call that from my code behind file in the page_load function.To simplify the question, how I can I call this javascript function to display an alert with a string passed from my code behind file?:
function hello(message)
{
alert(message)
[code]......
Call A Javascript Function From An External File?
Apr 20, 2012I have a Javascript function in the js file (test.js) and I need to call her in visual basic 2010 enter her input parameter and load response javascript functions in visual basic.
View 2 RepliesFunction Syntax - Call A Function With 2 Arguments When The Function Is Only Defined For One
Apr 1, 2010I'm trying to undersatnd the syntax of calling a funciton and it seem confusing when I'm using a web service in ASP.net. Maybe this question should be in an ASP forum, but it is a VB question. This simple web service allows you to type in your name and it response with an alert box with you name.
My question is, How can you call a function with 2 arguments when the function is only defined for one. I understand that the second argument is actually a method that handling the respons, but how can you interchange function arguments for methods and how do you know that there are methods for
Here's my call:
<script type="text/javascript">
function HelloWorld()
{
var yourName = $get('txtYourName').value;
[CODE]...
Call A Dynamic Compiled Func(of ) Function Via Expression.Call?
Mar 22, 2012I want to create an ExpressionTree where a Func(of Vector, Vector, Vector, Vector, Double, Double, Vektor) should be called. So I use
Expression.Call(Forces(0).Function.Method, {Vec1, Vec2, Vec3, Vec4, Double1, Double2})(Vec1-4, Double1-2 are declared as ParameterExpression and Forces(0).Function as Func(of Vector, Vector, Vector, Vector, Double, Double, Vector). But I get an AgrumentException, because Forces(0).Function.Method has seven Arguments. (System.Runtime.CompilerServices.Closure as seventh argument at Index 0).
Call A Function From Inside Another And Suspend It Until The Called Function Is Finished
Jan 25, 2010How can I call a function from inside another function and suspend the calling function until the called function is finished? I hope I can get some replies because I don't know how to ask the question and make sense:).
Anyway what I am trying to do in steps:
1. The user clicks button1 which triggers the click event.
2. From the click event I call a function
3. I then pop-up a form, that has instructions for the user to read.
4. After the user has read the form he will click the "Done" button and return to the calling function.
The problem is the the calling function continues to execute. I want to stop execution of the calling function until the users clicks the "Done" button on the instruction pop=up. I know I can use a msgbox but the instructions can be lengthly and does not look good in a msgbox.
I have tried the Call method with return in the "Done" button click but I can make that work. I also tried a goto statement but I can get that to work either. In the call statement I said call frmInstruction.show() and it got there but as I said the calling function continued to execute.
Getimage Of Control Function - Call This Function For Saving The Images?
Jan 30, 2010ive two custom controls, which are used to draw and edit etc...(like paint but customized....) i want to save their images with a single click....So im using the Getimageofcontrol function to do it....its code is below:::
Public Function GetImageOfControl(ByVal c As Control) As Image
Dim rc As New Rectangle(c.PointToScreen(c.Location), c.Size)
Dim i As Image = New Bitmap(rc.Width, rc.Height)[code].....
and the code to call this function for saving the images is simply.. ...
GetImageOfControl(pboxd).Save("c:78.jpg")
GetImageOfControl2(pboxf).Save("c:lp.jpg")
but the problem is that both the images have the same content....
Threaded Function Call Slower Than Calling Function Directly?
Sep 14, 2010I have a function where I am performing a lot number of database operations inside a Sub. The operation when called directly like:ExecProcess()
takes about 11 seconds to run.However, if I create a Delegate, and call the sub using BeginInvoke(), the very same process takes over 40 seconds to execute.Here's the threaded code:
Protected del As ProcessDelegate
Protected Delegate Sub ProcessDelegate()
del = New ProcessDelegate(AddressOf SELocal.ExecJob)
Dim cb As New AsyncCallback(AddressOf Me.ExecJobComplete)
del.BeginInvoke(cb, del)
Anyone know what may cause a function to take longer inside a new thread, rather than calling directly?
Call A Function / String That It Uses Will Be Given To Function To Initiate A Download?
Aug 21, 2009Some programs implement command parameters, Like my favourite computer game - Crysis - has them and windows media player has them.But how could i implement them in VB.NET..I want to have a component of my program built as a seperate exe - so it can be an Optional component.But of course the seperate exe, on load, needs data passing to it.So i need something like Process.start("Componentname.exe", "/StartDL <Suchandsuchastring>)/StartDL will need to call a function, and the string that it uses will be given to the function to initiate a download?
View 9 RepliesOverride A Function And Call A Function With The Same Name From The Grandparent Superclass?
Sep 6, 2010I am attempting to inherit an ASP.NET RegularExpressionValidator and add some functionality to it. I inherited the control and added my custom properties. However, I would also like the client-side functionality to call a different JavaScript function.
In order to do that, I will need to supress what is happening in the AddAttributesToRender method because the name of the function is hard-coded there. Here is what comes up in Reflector for the AddAttributesToRender function in RegularExpressionValidator:
[Code]...
Note: I tried to add the expando property before the parent class does to see if the code would check for its existence and skip it, but that just causes an exception.
Call A Tsql Function Inside A Function?
Mar 23, 2011I arrive from years with Oracle plsql. Now I'm trying vb.net I created a function that return a char value, so written:
[Code]...
The question: I will create a function get_type(...) in vb.net that calls the tsql function written above... how can I call the tsql function [abc].[GET_PERSON_TYPE] in vb.net function get_type(...) function?
Create / Call Timer At Runtime?
Sep 23, 2010I'm trying to create a time during runtime. I can create the timer just fine but I cannot call it from another sub.[code]...
View 4 RepliesCall The Click Event From The Button That Was Created At Runtime?
Jan 6, 2009I'm writting a program that will output the column headings of the database onto a form in a label along with a text box for the user to input their own information and a button to add a new record in the database. My problem is I do not know how to refer to the text boxes or how to call the click event from the button that was created at runtime.
View 12 RepliesHow To Call Custom Event From Another Form
Jun 22, 2010I never did custom events and would like to make a sub procedure execute via a custom event from another form that does not have the custom event defined. For example I would like to raise the event from my ok button in one form and have the event in the other form execute. How to set this up using code examples?
View 2 Replies.net - Call To Ctype Failing At Runtime For Cast From Int To Generic Type?
Feb 25, 2011I know about the existence of System.Nullable(Of T) Structure.I am trying to write a class to replace it: The Nullable(Of T) Class [VB code below]. But when I tested the Nullable(Of T) Class (See NullableOfTClassTest Class, Method Main) an exception occurs when using the CType operator to convert from System.Int32.Why does this happen at runtime, why isn't my Ctype operator method being called?
NOTE: code below reordered and reduced in order to hilite problem.
Namespace MyNamespace
Public NotInheritable Class NullableOfTClassTest
Private Sub New()
End Sub
[Code]...
Adding Custom Object To ArrayList At Runtime?
Jan 5, 2010I am having issues adding a custom object to an arraylist at runtime.
Details of what Im trying to achieve.
My object is Fixture which represents a light. My light has the following properties:
Name, isMover, HighlightValue, UserNumber, Channels.
Channels is a dynamic arraylist which lists all the different channels of the fixture. A channel could be the lights colour or its intensity. A channel has the following properties:
Type, FeatureGroup, Value, Universe, Address, Slots and Offset.
Slots is the same again, breaking down to another ArrayList with more details.
Code:
Private Sub Patchingtest()
Dim TestFixture As New Fixture_Structure
Dim Intensity As New Channel
[Code].....
Custom Control Property Persistence During Runtime
Aug 30, 2011How to get a property to persist after its been changed dynamically during run-time? When Visual Basic reverts back to the IDE, the property goes right back to its original value.
View 3 RepliesCustom Cursor Changing Shape At Runtime?
May 16, 2011I am working on a contract to repair problems in a application that interfaces with a custom built digitizer tablet.The application recognizes the tablet at startup, initiates calibration to locate the pad limits and then saves those limits to file.During the run of the application the user has a cursor that is changed to a line with a X on the left hand side of it. The user then uses this custom cursor to click in a PDF document where they would like the contents of the Digitizer pad to be placed. When they click a box signifying the size of the digitizer pad along with the same blank and X appears. What I have been having issue with is that the box and the line with the X appear most of the time but on occasion the line and X appears at either the top or bottom of the box and the click is no longer at the line with the X but somewhere in the middle of the box. This really screws up things and often the user has to uninstall and re-install the application to get it righted.
The values that save the calibration points are bound to variables during the build process, there is a separate routine to calibrate the digitizer pad if the user desires to do it again.
Public Structure IconInfo
Public fIcon As Boolean
Public xHotspot As Integer[code]......
VS 2008 Call Access 2003 Database Runtime Without Security Warnings
Apr 7, 2009I've got this program I'm working on in VisStudio2008. Basically, it accepts a password and executes an Access 2003 database using the Access 2003 runtime. I've got the thing looking up a password and all is good, but there's one problem those annoying Access 2003 and higher warnings about unsafe macros. Does anyone know a way to make sure those don't show up when the program starts?My client has a database that someone else wrote for her. She's not at a point where she could have it rewritten (believe me, I've tried to talk her into that). So I have to stay in Access but it's not very professional to have those warnings come up.
View 5 RepliesCustom Control's Property Resets To Default At Runtime?
Mar 27, 2011I created a Custom Class and Implemented a Type Converter for it. I used this Custom Class as a new property of a Custom Control.Everything is fine at design time. I can set the values of this property but at run-time the values i entered resets back to the initial declaration i made.
View 5 RepliesMoving And Resizing Custom Control At Runtime In Datagridview?
Nov 25, 2010i'm attempting to develop a calendar using datagridview where column headers are dates and row headers are list of employees.
i would like to add a button/custom control on the datagridview to represent a task over time where I can move or resize at runtime.
VS 2008 Associating TextBoxes With Custom Controls During Runtime
Feb 2, 2010I have a custom control that the User can add to the form. They can add as many of these controls as they like.When they add a control, I am going to populate another custom control, a textbox, in another panel.I need to figure out how to associate that new control with the previous one.So, let's say the User creates 3, let's say "Boxes", three TextBoxes are created. When the User adds something to Box1, TextBox1 needs to be populated a specific string.I know how to create and add the control as needed, but I can't figure out how to associate the controls, if that make sense.In order to distinguish the Boxes, I've added a label to them that represents each iteration of the box. The numbers start at 1 and increase from there.I was thinking I could use that to associate the TextBoxes and am working on that now.
View 3 RepliesMake A Slider Or A Custom Scroll Bar Whatever Want To Call It In VB 2010?
Oct 27, 2011I'm trying to make a slider, or a custom scroll bar, whatever you want to call it, in VB 2010. But I want it to act as an usual scroll bar. I simply can't make it stay inside my form, it just moves around. I have a photo of my code and my designer down the thread. What should I add? I tried to make it stay inside Panel1.
View 3 RepliesC# - .net Call Php Function?
Oct 31, 2011I am trying to call a php function from .net. I tried to a webrequest method but I am not sure how to specify the function to call in the url. A link below shows the method I am trying to call.[URL]..
View 2 RepliesCall A DLL Function?
Nov 28, 2010I have created a new Class Library in visual basic and called it 'TestDLL'. I have a TestDLL.vb file where I put in this code
Class TestDLL
Function ReturnHello() As String
Return "Hello"
End Function
End Class
Then I clicked on the build tab and built the solution. I then copied the DLL 'TestDLL.dll' to C:TestDLL.dll
I am trying to use that DLL in a console application. I have tried this code but I get an error: System.EntryPointNotFoundException was unhandled Message=Unable to find an entry point named 'ReturnHello' in DLL 'C:TestDLL.dll'.
Declare Function ReturnHello Lib "C:TestDLL.dll" () As String I have added TestDLL.dll to the references for the console application and got that to work, however my goal is to load and unload different .dll files without restarting the application. I have a lot more code besides this, but I'm just trying to find out what commands I could use for just calling functions from DLL files.
There was something I was reading about assemblies, but all I get that to do is list the classes in my dll file. I will already know all the names and locations of the .dll files, and also the class and functions that they contain, because I will be building all of them. how I can get a simple function return in my console application.
How To Call Function Of DLL
Jul 10, 2011How to declare following function in vb2010?[code]
View 5 Replies.net - How To Call A Function Dynamically
Sep 9, 2010I have in vb a selector
Dim ver =101
Select Case ver
Case 101
upd101()
Case 102
[Code]...
How can I make this select better by calling function in more dynamically in this form: with the prefix "upd" followed by a ver integer.