I was wondering if there is any way to combine events in VB.net. I am using a windows form and have three events for each button that does a different action. I would like to put all three events in one method but am having trouble doing this. Below is an example of one of the buttons. For the ease of the question I removed all the code inside each sub.[code]....
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I have two projects, one written with vb.net and one with c#,I would like to use the vb.net one more as a Class and make the c# project the 'main' one.I have already read that In order to do that I need to compile the vb.net project as a dll and import that dll into the C# project.I am having hard times making it work.Does anyone know how do I import the dll and use the functions that are implemented in the dll?
View 4 RepliesIs there a fast way to get all the items of an array that have even indexes and put them into a new array in VB.NET?
View 2 RepliesI've recently been learning vb.net, coming from a background in java and c. I'm pretty comfortable adding buttons and things like that to my form, and then using those click events to call functions in other classes.
However, the way I have been testing my code is to add a button to my form and then have the click event initiate the first function call (basically I have this button acting like a java main() method.
I have recently been wondering if there is a more efficient way of testing out my code that is similar to how it is done in java or c. By this I mean, is there a way to skip all of the form stuff and just have a sub procedure or function that is similar to a main method in java?
I've seen several answers that have mentioned how to add get a main sub to work in vb.net, but they required changing some of the properties of the project. I'm looking for something I can just code and hit run without having to disable the application framework.
Since I'm still relatively new to vb.net, I am also wondering if this is they wrong way to go about it? If I was being asked to create some code in an interview or something, would I need to worry about launching everything, or would they just want to see me implement the class as a standalone file?
I have created control arrays in run time with following [code]...
But I don't know how I can have access to events now (especially textchanged)
For example I want when I write number in txtfrom (i+1) write it automatically in txtTo(i)
I have a custom datagridviewcolumn in which i've added an event.The problem is, I can't work out how to see who has subscribed to the current column object's event and add those subscriptions to the cloned column object.
I get around this problem by asking the calling program to pass the address of the handler to a delegate in the custom column, instead of adding a handler to the event.
I'm trying to do program that do something with F1 and F2 keys. So all working while my program is active. If my program is on screen. If I'm using other programs and my program isn't active on screen then these buttons won't do anything.
My code so far:
This is under load program :
Me.KeyPreview = True
This is when keys are pressed :
Private Sub frmMain_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Select Case e.KeyCode
Case Keys.F2
MessageBox.Show("F1")
[Code] .....
I am having three forms
1. Main page
2. Input page
3. Output page
I want load event to be activated whenever coming from Main page to Inputpage and activate event when coming from output page to input page.But what i am getting is that only for the first time load is activated and for all other only activate is called.
I was given an assignment to "write a program to print only even numbers between 6 and 16 using events", but I don't even know where to begin. The main thing I am having difficulty with understanding in this assignment is how I am supposed to specify that it only print even numbers in the given range of numbers.
Am I going to have to do a Mod2 code for each individual number and have it exclude any with the result of 1? Or is there another piece of code specifically designed for such an occassion? Perhaps there is some type of equation I can have the program read in terms of a variable, which holds the values of 6, 8, 10, 12, 14, and 16? I am just genuinely confused on how this is supposed to be programmed.
I'm having a lot of trouble finding a solution to my problem, and its probably because I don't know exactly how to ask the right question - can anyone here point me in the right direction?
View 3 Repliesi need the codes which written in the key press events to enable me to connect barecode to my program
View 6 Replieswhen I added a textbox to my form, my keydown events no longer work. It seems impossible to get the blinking cursor out of the textbox so as to avoid targeting it. How do I retain keydown events when a textbox is added to the form?
View 11 RepliesI have been trying to implement the jQuery weekcalendar using .net. What I can't seem to figure out is why weekcalendar states events.events is undefined after I make an ajax call to a webmethod I created which returns JSON. Below is the relevant code:
[Code]...
I want to make Keybord events and mouse events for learning and educational Purpose.
1. In Form any object like A "picture box" move by Arrow keys .
2. Picture Box Contain many Picture i want change Picture With next and Previos By Arrow keys.
3. I contain Voice of alphabet in Mp3.When i Press any button in textbox then its work.
4. Mouse Pointer Change My Own.
5. I click any Object or any thing By mouse its noice clicking sound like Tik Tik Tik.... Question No 3 is very hard to do . but not im possible
Write a complete Visual Basic program to do the following: Joe's Pizza Palace needs an application to calculate the number of slicesa pizza of any size can be divided into.
The application should do the following:
ï‚· Allow the user to enter the diameter of the pizza, in inches.
ï‚· Calculate the number of slices that can be cut from a pizza that size.
ï‚· Display a message that indicates the number of slices.
To calculate the number of slices that can be cut from the pizza, you must know these facts:
ï‚· Each slice should have an area of 14.125 inches.
ï‚· To calculate the number of slices, divide the area of the pizza by 14.125.
 The area of the pizza is calculated with the formula: Area = π r2
Note: The π is pi which is equal to 3.14159.The r is the radius of the pizza. Divide the diameter
by 2 to get the radius.
Form:
The application should be done form-based. You may design your own form. It must have the following:
ï‚· a label indicating that it is Joe's Pizza Palace
ï‚· a field with label to enter the size (diameter) of the pizza
ï‚· a field with label to display the number of slices
ï‚· buttons to calculate the number of slices and to exit the application
Output:
Use the following test data to determine if the application is calculating properly:
Diameter of Pizza Number of Slices
22 inches 27
15 inches 13
12 inches 8
Requirements:
ï‚· Name the project Pizza.
ï‚· Be sure to include your name included in a comment
ï‚· No credit is given for a program that will not execute.
ï‚· All rules of academic integrity should be applied as stated in the syllabus.
ï‚· Submit the zipped project into Moodle.
I have errors saying "With Held " events
WHAT IS WRONG WITH what I HAVE
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click
' End the application
End
End Sub
[CODE]...
What I am trying to do: There are three powershell scripts with different time delays as shown below.I am trying to run them asynchronously in .NET and I followed this article to implement Asyncrhonous programming. Where I am stuck:The I am not able to retrieve output after the events are invoked.The scripts are being called but then the program ends and it shows "Press any key to continue" in console windows.I don't what I am missing here.
Info: JobRequest is a class that I use to pass around information keep track of jobs.
Sub Main()
OurAsyncFunctionCalling("psDelayScript2.ps1", "-arg1 4 -arg2 5", 1)
OurAsyncFunctionCalling("psDelayScript1.ps1", "-arg1 2 -arg2 3", 2)[code]......
I was wondering if their was a way to for me to turn off events and then turn them back on in my program or just queue them up until i am ready for them to be excuted. Kinda like how a OS turns on and off interupts. Is this one of those general programming no-nos?
View 1 RepliesHow do I combine a last name to a first name to create a list of names in a table from a form? I have tried to use the technique of creating a 5 uppercase letter record identifier, but I can't get the name to allow for different length names without truncating.
View 3 RepliesI have a friend who is very good at c#, but i am using vb.net and not clearly experinced with c#. i want work with my friend together.how can we do ?
View 11 RepliesI was wondering if there is a way to include / 'run' C++ code within VB.net I think I read somewhere about turning the C++ Code into a library and can access it that way, but not 100% sure if I did in fact read that right or if I'm dreaming things up. Basically, I want to design a basic UI, ie just a button or 2, and when the button is clicked I'd like it to use the C++ Code.
View 3 Replieshow can i get cell text value from excell sheet in visual basic and then after changing its text send it to back excell. when i open excel file i should get the changed value in file.
View 1 RepliesI am trying to UNION the two queries below without success.
Dim
ds1
As
New
DataSet
Dim
MyConnection1 As
New
OleDb.OleDbConnection(GetPOWERConnectionString())
[Code] .....
how to combine this 2 statment..
IsConnected("Select * from manager_table", False)
Call Loader()
IsConnected("Select * from Clerk_table", False)
Call Loader()
i hve 2 listview, 2 table from accessdatabase..i put listview in tabcontrol..1 in tab 1 & second in tab 2...
I'v got 3 functions that I'd like to combine into 1. There is only one line in each function that changes. can think of a few ways off the top of my head, but not sure which is "the best", or "proper way" to accomplish this.
Private Function CheckQuads(ByVal QuadNumber As Integer) As Boolean
Dim intArray(3) As Integer
Dim x As Integer = 0
[code].....
I need to combine an if/then/else with a try/catch and I can't seem to make it work. Basically I need this:
Try
code that might bomb
Catch ex As Exception
[code]....
I thought I could check Err.Number once I was out of the Try/Catch block but that doesn't work because apparently Err.Number exists within the Catch block after an exception is caught, but outside of the Catch block Err.Number is zero again. How can I do what im trying to do? Im about to NOT use try/catch and resort to On Error Resume Next (aaahhhh the days when things were simple and just worked)
I have a solution, Winforms, mainly composed from VB.NET projects (Wiforms, Constrols and business classes).
How, I added to it a WPF project, but wrote it in C#. Actually, every time I make a modification in the WPF C# project, I need to (re)build the C#WPF project. Is there a option to make it work like other (VB.NET) projects (accept and "see" the changes without rebuilding the C# project)?
An example:When I reference project "R.VB" in project "M.VB", I add a method "DoTest" in the "R.VB" and use that method in "M.VB" without compile errors.
If I add "DoTest" in the C# WPF Control and try to use it in "M.VB" project, I recieve a compile error "DoTest" is not a member od "R.C#Class".
I don't know how to get shift modifier key as when I pressed shift and another key, it show message box "Modifier shift key"
View 1 Replieshow to combine this 2 statment.. [code] i hve 2 listview, 2 table from accessdatabase..i put listview in tabcontrol..1 in tab 1 & second in tab 2...
View 4 RepliesI am wondering how to combine files (exe, dll, jpg etc.) into a single standalone executable. Can this be done?And when i open it, it will automatically launch the included files. However The joined files should be fully encrypted
View 3 RepliesHow do I combine richtextboxes? Currently, I am directly saving rich text to a RTB with ".rtf" and I would like to append the rich text information to that box from another RTB. Something like: RTB.rtf &= newrichbox.rtf do not throw any flags but also does not work. What I am ultimately trying to do is save multiple richtextboxes to a single RTF file. I was trying to do it by combining them all into one RTB and using ".savefile()" or is there a better way? Maybe appending them to the file one RTB at a time?
What I'm doing is generating a report, so I have built generic rich text templates that go into multiple RTBs that will create the form sections and I have left placeholders for the data I am adding, so I do replaces on the placeholders to insert the data. However, there are a couple dozen different possible formats for the report based on user options, so I built each section into its own RTB so I can just write out the relevant sections when it comes time to generate the file.
