.net - Call A Function From A Class In Visual Studio?
Jul 19, 2011
Now to working with Visual Studio Solutions, but I am trying something very basic but no joy. So in my project I have a folder App_Code and in this I added a class called Test.vb and added a simple function
[Code]...
But in my Default.aspx page I am struggling to find the correct syntax to call this method. Also it doesnt seem like my Test2.vb class is correctly included in the project because If I make a type the project still builds successfully when it shouldnt
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Feb 17, 2010
I am working to make a function that will update the back color of a text box based on multiple variables values. I can write the code to do the calculation, but I am not sure how to make the function realize which text box to update (as I will have about 30 different boxes). Below is the code that I have for each box so far, but I will have quite a few more, and would rather use a function to reduce the amount of code, and also make it cleaner as well.
If sngPreviousPrimaryPropertyTotal >= sngPrimaryPropertyTotalCost Then
txtPreviousPrimaryPropertyTotal.BackColor = ColorProgramLightGreen
Else
txtPreviousPrimaryPropertyTotal.BackColor = ColorProgramLightRed
End If
[Code] .....
Or is there a way that I can tell the function that it's updating the text box that call the function in the first place? Say if txtBox1 has updated text and calls the function, then the function 'knows' to update txtBox1, but will update txtBox2 when it's called by txtBox2.
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Feb 5, 2011
E.g. I have a class:
Namespace Common
Public Class AClass
Public Class BClass
[code]....
How can I use BClass without saying AClass.BClass, I've see some existing code using this format, but I can't find the setting.
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Apr 24, 2012
So I'm trying to write a MasterMind game, but I have a problem I have 40 pictureboxes set up in 10 different rows, and I want to have one code handle all 10 rows, rather than copying and pasting the code and changing the names of the pictureboxes. I've been trying to use a variable to achieve this, but if it's possible, then I don't know the correct way to do it.This is what I have right now:
[Code]...
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Dec 14, 2010
I'm looking to call an excel macro (excel version 07) within a separate visual studio application (visual studio express 2010). Basically, a user clicks a browse dialog button to select a xls or xlsm file which is then added to a listbox. Next, I would like the macro to run when another button is clicked. The macro looks at the first column in excel and moves the listed .tif images from one folder to another. I referenced the excel libraries, but seem to be getting hung up on a few code statements (''''ERROR see code below). I would like to run the macro within visual studio for any selected excel file or add the macro somehow to the selected excel file and run it.
'Here is the button click procedure
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
filenames = lstFiles.SelectedItem
[Code].....
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Sep 8, 2011
I working on a project that includes to call a certain type of method to each control, i have this code:
Private Sub txtBcNum1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtBcNum1.KeyPress
If Char.IsDigit(e.KeyChar) Or e.KeyChar = Chr(8) Then
[Code]....
I have 15 textboxes( txtBcNum1,txtBcNum2,....,txtBcNum15 ), what's the best way to call this function inside KeyPress method on each textboxes with out manually adding it to KeyPress method?
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Sep 22, 2010
As you read this, though I have pretty good experience in C++ and Java, eep in mind that I am a complete beginner when it comes to VB. :)Here is one idea of what I want to do:
Option Strict Off
Option Explicit Off
Imports System
[code]......
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Jun 22, 2011
The following C# code works just fine and the test passes as expected.
using NUnit.Framework;
using Rhino.Mocks;
namespace RhinoMocksTesting
{
public interface ITesting
[Code]...
The Expect.Call line produces the following build error: "Overload resolution failed because no accessible 'Expect' accepts this number of arguments." What is the proper way to use Expect.Call with a mocked property in VB.NET? I've seen a couple posts that say Rhino Mocks works better in VB10, but I'm stuck with Visual Studio 2008 for this current project.
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Mar 11, 2011
Im creating a class that will have my common database functions. So for example I've created a function db_con in a class called db_functions.
How do i use that db_con function in for example my homepage vb code?
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May 25, 2012
I 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.
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May 31, 2011
How do I call a function in a visual basic class library?
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Dec 21, 2011
I'm making an application that involves logging into a server, however, the post data needs some encoding.
Dim strEncUsername As String = Server.HtmlEncode(Me.txtUsername.Text)
However, since this isn't an asp.net application, this doesn't work. How the hay am I supposed to do this? I tried looking for an Imports thing, but no real luck.
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Dec 4, 2011
I want to create a new instance of a class when I click on a button, but I need to interact with members of that class using other controls on the form, so I need the class to have a global scope. I know I could call the new class in formload, but the class creates certain variables that need to be current. If it is done on formload, the variables wouldn't be current, because if the class is created at formload, it would have different info at that time. Surely, there must be a way to create an instance of the myClass from within a sub that is accessible from other subs of the same class.
[Code]...
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Apr 4, 2012
Write a program that reads in a set of grades for a class.The program takes in the number of students in the class from the user. When the Get Grades button is clicked the program then reads in a grade (0-100) for each student using an inputbox. The program should then display the percentage of students who pass and the percentage of students who fail.The program should call a function to calculate the average grade for the class. Then finally the result is then displayed.
Public Function GetPassRate(ByVal intGrade As Integer) As String
Do Until gradeCounter >= NumericUpDown1.Text
If intGrade >= 40 Then[code].......
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Sep 1, 2009
I have a Windows form Application that I am creating, could also be a Windows Service that I need to run.There are basically 2 Classes that were converted from java to vb.net and 1 xml file to this. for testing purposes I would like to use the Button.click event to manually run the code.However i get an error when trying to call the sub/function the normal way.I even tried to put this classes information in the Public Class Form1 but it keeps on giving me errors.This is the Sub:
Shared Sub Main(ByVal args() As String)
so how do I call it from a Button.click event?
normally i would just do a "call main()" and it works however this time it is not because of the (byVal args() as string)
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Mar 9, 2011
I 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.
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Jan 20, 2012
I've created a dialog which I'd like to popup from any function or sub in any class or form that I have in a project. It would nice to have it work exactly like a messagebox except it's got a progressbar and a cancel button on it. It's job is to display the progress of other functions so it should just stay open until I close it or the user selects cancel.Now I've found many of the basic examples on the net and have got the dialog working exactly as they have shown it. The trouble is that the examples are using a counter or thread.sleep which simply adds +1 in the DoWork sub. In other words, it validates that a worker thread can update a progressbar but it's a closed loop that only exists in the dialog's class.The examples don't show how to call an unkown function in another class dynamically, they're simply a hard coded 1+1 in DoWork. To me it's not a real world example because it doesn't show how to plug into the dialog or get a communication stream from other classes and functions that are running and wanting to increment the progressbar.[code]
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Mar 26, 2012
I'm not sure of the syntax necessary to access a class's attributes inside of a Dictionary declaration.
[Code]...
So if I want to test it and use MsgBox() how do I trickle down to pull, say, name in food > cheese1 > info > attributes2 > name?
EDIT:I just realized that Array in info needs to be a Dictionary for an associative array, so please ignore that error and just assume it is a Dictionary for this question's sake.
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Oct 31, 2011
In Visual Studio 2010 express (using vb.net) I've somehow set two forms to use the same class.
Basicly I have two designer files with 1 implementation each. For some reason both designer files are calling the same implementation file, and I can't find any settings to correct the problem.
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Jun 1, 2011
In visual studio programming in Vb.Net you get a special autocomplete around functions. If you add a name in front of a statement the rest of the line is treated like function parameters.
strInEditBy dsInfo.Tables(0).Rows(0).Item("plandesc").ToString()
strInEditBy ( dsInfo.Tables(0).Rows(0).Item("plandesc").ToString() )
I wanted to add a = operator in the place of the ( but unless I type really fast it auto-adds the ( ). How can I turn that off.
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Mar 15, 2010
I am trying to invoke the onclick function in an html page that displays content. I am using the httpwebreqest control and not a browser control. I have traced the function and tried to find the link it calls but looking at the code below I tried inserting the link into the browser with the main url but it does not work.
[Code]...
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Jul 15, 2010
I have created a user control which is inside a folder called Controls and the class is a partial class which inherits from Web.UI.UserControl. Now from my page which is one level up I just try to access the method inside the usercontrol and so trying to cast it as the type of user control.
But I get build errors. It just cannot recognize that class. I get Type not defined error. But at times it has recognized the class. Dont know why it does that.
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Dec 5, 2011
I have a visual studio solution written using VB.net. The solution contains 4 projects.
[Code]...
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Oct 27, 2009
In C# code, we can just right click on the class name and then select refactor and then extract the interface for that class. I wonder if this could be done on VB. Im using the same IDE VS 2008
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Apr 16, 2009
I have a solution made up of several projects. Everything is properly referenced, the solution builds and runs. Now, when "view class diagram" for this class, it doesn't show any fields. It shows "dmxProgram" as a property, but it doesn't show any of the non-property private fields. Therefore I can't add associations to my class diagram for those fields that do not appear.
[Code]...
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Mar 15, 2012
I need to use the "<>" (not equal to) operator for a peice of coding which uses the SheduledAction class, but I keep getting this error:
Error 1 Operator '<>' is not defined for types 'Microsoft.Phone.Scheduler.ScheduledAction' and 'Microsoft.Phone.Scheduler.ScheduledAction'
Here is my coding thats bringing up the error:
Dim hw As ScheduledAction = ScheduledActionService.Find("Hello World")
If hw <> Nothing Then
...
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Sep 21, 2011
I have a HTTP class that gets content from URL's, POST's content to URL's etc and then returns the raw HTML content.In the function inside of the class it detects if there is a HTTP error and if so I would like to return false but will this work if I have declared the function to return a String?
Code Sample of what I am trying to do (Note the Return Content & Return False if a HTTP error code is detected)Public Function Get_URL(ByVal URL As String) As String
[Code]...
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Dec 17, 2009
It is really too bad that Microsoft (who once had the best documentation in the business) has slipped so badly. Good documentation does not really require analysis, though, admittedly, it is a lot of work. To wit: for each and every single method, function, event and operator provide the following: a brief topical functional description including any parameters, a detailed description of how the object works, a workable example of the code needed to make this object do something useful and links to all possible associated objects (See Also).
I see pages upon pages of useless text and links to other pages full of links. This rapidly descends into a crevace of unbelievable complexity for the developer trying to find out something truly simple like filtering a DataGridView without changing the data connection. (As it turns out this is very simple to do but I could not find a single example of how to do it in the Visual Studio documentation.)
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Nov 4, 2011
In my VB.net code i have:
cmd.CommandText = "SELECT * FROM [strfg].[dbo].[Myfunc] (@MyParam)"
Dim myparam As New SqlParameter("@MyParam", a)
cmd.Parameters.Add(myparam)
The function (runnig on SQL server) returns a table with four columns, one row.How do I call this function from Visual Basic? cmd.ExecuteScalar() is obviously not correct. In c++ I use a recordset. What is the equivalent in vb? Does anyone have a short example?
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Sep 17, 2009
Does anyone know how to get my class name and method name dropdown lists again? It's the dropdown lists that are usually above the code. It's just a setting but i can't seem to find it. I don't want to reset my setting btw. I shouldn't have to.
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