VS 2008 Manipulating Objects Through Code?
Mar 25, 2010How can I create and manipulate Objects on form with my vb code?By that i don't mean toggling the visibility.
View 6 Replies
ADVERTISEMENT
Manipulating Data On An Active Form With Objects
Sep 10, 2011this is not really a code issue, more of an events issue with objects. I want to be able to generate an output as the user inputs into each text box under the "further invoice details" section. For example, if the user inputs a value to amountrequired text box. Then a gross total is auto generated without the need to click a button.
[Code]...
Manipulating Object Properties As A Variable With Code
Nov 4, 2010I would like to use a loop to manipulate a set of objects on the form. This is like using a control array but not,... Here is some code to consider:
[Code]....
Make Objects From The ToolBox Using Code Instead Of Changing Existing Objects Invisible Then Visible Later?
Dec 5, 2011make objects from the ToolBox using code instead of changing existing objects invisible then visible later?
View 7 RepliesVS 2008 : Accessing Objects Created In Code?
Oct 31, 2010I am trying to access objects created at run time.The following code works IF Options Strict is off. If it is on it indicates "Option Strict On disallows implicit conversions from 'System.Windows.Forms.Control' to 'System.Windows.Forms.TextBox'."
Option Strict Off
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim txt As TextBox = Me.Controls("T3")
[code]....
I am having trouble formulating the type conversion.A Second problem I am having occurs when I create a groupbox at runtime and then add the textboxes to the groupbox. I am having trouble drilling down to gain access to the textboxes inside the groupbox.
VS 2008 Getting Head Around Objects / Storing Them In Code
May 5, 2011I'm trying to get a complete understanding of Objects . Namespaces etc and think I'm pretty close.I've created A basic Vehicles class and a car class that inherits Vehicle.Through user input I've created several cars and displayed the information in a listview.My question is what is the best way to store my cars (don't say garage!) so that if a user clicks on the associated entry on the list box that they can then alter that specific instance.
View 5 RepliesVS 2008 Manipulating A Control's Location Property?
Jun 27, 2009This one has me stumped. I'm trying to change the location of an object's X position so that it has a marquee like effect. I'm doing this with buttons and text, etc..
PictureBox1.Location = New Point(PictureBox.Location.X - 10, PictureBox.Location.Y)With the intention of it moving 10px to the left. I would then use a timer, but it scrolls automatically for me,
VS 2008 Inherit ListView - Dispose Of Two Objects When The Form's Disposing Of It's Objects
Feb 7, 2010I have a user control that inherits the FW ListView and I need to dispose of two objects when the form's disposing of it's objects. Here's what I've concluded already, am I on the right track?
[Code]...
VS 2008 Manipulating WndProc Messages Causes Weird Behavior When Changing Me.ShowInTaskbar
Oct 8, 2009I am capturing a few system command messages (namely minimize/maximize/restore). Inside the WndProc override I am trying to change the form's Me.ShowInTaskbar value but it is causing weird behavior in that minimization and restoration does not occur properly.Can anyone think of a reason why changing this property would interfere with this? The reason I don't really want to post code is because duplicating the effect takes a bit of code/setup. My initial thought was that changing the property's value is somehow sending another windows message and canceling the one I am currently manipulating. I realize this is a little vague but it's a shot in the dark.
View 1 RepliesAccessing Objects In Code
Jan 9, 2010Dont even know how to word this, reason I'm having so much trouble finding out the answer in help.But, basicly I'm trying to get data from many different text boxes named similar from my form, example:[code]where i would count up in a for and next statment from like 1 to what ever.
View 17 RepliesCreate Objects With Code?
May 26, 2009I want to make pictureboxes move from the top of the screen to the bottom of the screen (easy) when they reach the bottom I want them to cease to exist (do-able). But i want to create new ones that keep coming from the top. create an endless amount of pictureboxes while running the program?
View 5 RepliesCopying TabPage Objects Via VB Code?
Jul 27, 2011I want to copy the different objects of a tabpage into another tabpage while running the application(using a button click), but that those objectshave the same code as their references, so they work exactly as their references.
View 1 RepliesHow To Call In Objects From Other Class With All Code To Test
Dec 7, 2011I'm struggling with unit testing in my website.So far I have the NUnit framework imported with;[code]How do I call in objects from the other class with all my code to test?If anyone could give me an example of how to test textbox validation,
View 1 RepliesVB - Modify Textboxes And Objects Generated In Code?
Feb 23, 2012I've written a for loop to generate several new text boxes and numericUpDowns when the application is run.
The text boxes / numericUpDowns are generated with a 2-dimensional array. My question is: How do I handle when the text boxes / numericUpDowns are modified?
If you would like the code, just request it and I'll add it here.
Compiling And Running Code Dynamically / Exposing Objects From App
Jul 19, 2011I am trying to add some scripting to my VB.NET 2010 Windows Forms Application.I have figured out how to compile and execute VB.NET code stored in an external script file from within my app using Microsoft.VisualBasic.VBCodeProvider.CompileAssemblyFromSource and InvokeMember. I can also pass and return parameters to the code in the script file.In VB6 using the VBScript Host control, I could expose instances of objects in my app to the code in the VBScript.How do I do this in VB.NET?I'd like to expose a form object (the main form for my Windows Forms Application) to my VB.NET script.I don't want to pass the form as a parameter via InvokeMember.[code]
View 3 RepliesRun Vscript 64-bit Code From .net In 64-bit (libraries , Dlls, Or Any Objects That Can Reference)?
Feb 4, 2012good way to run windows script host code from vb.net? Im trying to run some dsf com components but they are only for the 64-bit version of scripting engine installed. I wish i could execute my code from vb.net but sometimes it doesnt want to work because im referencing the 32-bit version script control and not the 64-bit scripting environment.
So my goal out of this is to find a 64-bit scripting component dll or library that i can use for executing a wsf file thats mostly written in vbscript but has some xml from the windows script host.Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - "Sherlock holmes" "speak softly and carry a big stick" - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda
Creating Forms And Objects Through Code In The The Load Event Of Form1?
May 22, 2011I've been working on creating forms and objects through code in the the load event of Form1, truthfully theres a few questions I have under this one category but to start I want to create a button click event that will check what button was pressed then set that button to a variable. I want the event to treat the button that was clicked like it was that buttons click event.Here's a shortened version of my code (Lol if you can call this short):
[code]...
VS2008/VB: Moving Subclass VB Code To Inherited Base Class - Where Should Variables/objects Be Declared
Jun 3, 2009In re-engineering a windows forms application, I find that a lot of code-behind in the various form classes is duplicative and I'm trying to centralize as many procedures as possible into a base class which can be inherited and used by the subclassed forms.
This process seems to be going well and is making the code in my subclasses much simpler and hopefully easier to maintain, but I'm not sure where to draw the line between leaving code in the subclasses and engineering for generic resusability and moving it to the base class.
Specifically, in some subclasses I have code which manipulates variables and objects specific to the subclass, and although I could move the code-behind into the base class, the base class code references specific objects which are needed to compile. For example, each subclass manipulates a databound datagridview and form detail controls which allows the user to select between multi-record and detailed single-record views of a datatable.
In Visual Basic 2008 do I need to declare dummy data objects in the base class so that the base class will compile? Or is there a way to indicate that the data objects will be provided by the subclass?
.net - Manipulating .gif Images?
Apr 26, 2011How would I turn single images into animated gifs and vice versa? Is there an existing library for such a thing?
View 1 RepliesManipulating The Picture Box?
Jun 30, 2009I'm trying to design a game using vb.net window application, my game is sokoban, a logic game where the character pushes boxes to the destination.I have already programme my picture to be move by my direction key, I trying to find out if it is possible for picture box to push picture box like when the character(a picture box) move to the box(a picture box too), the box will move also. and also the logic for creating obstacle for the game, as the picture that i have programme can move beyond the page, I'm trying to lock the obstacle in, so when i move the picture, it will be block by the picture box.
View 6 RepliesSql - Error The SqlParameterCollection Only Accepts Non-null SqlParameter Type Objects, Not Int32 Objects?
Jun 23, 2012I am getting this error, Not sure why it is happening "Error The SqlParameterCollection only accepts non-null SqlParameter type objects, not Int32 objects."I have tried with all sorts of possibilties, now try to enter default data as dummy data,
Using connection As New SqlConnection
connection.ConnectionString = ConfigurationManager.ConnectionStrings("DentalDeviceConnectionString").ConnectionString
connection.Open()[code].....
Modifying Objects Inside For Each Loop Sets Properties Of All Objects With Values Of Last One?
Jan 29, 2011I have a program like this.
Module Module1
Public Class Mstr
Public Property Prop1 As String
Public Property Prop2 As String[code]....
But it is not working as I expect it to. You can see it from.The DtlsB properties of all three DtlsA objects are having values from last iteration.
Random Objects - Let The User Input Objects To A Richtextbox 1 Object On Each Line?
Jan 6, 2011I want to let the user input objects to a richtextbox 1 object on each line, and somehow use Random.Next to select pseudorandomly a few objects, the number 'few' inputted in a textbox.
View 9 RepliesThe SqlParameterCollection Only Accepts Non-null SqlParameter Type Objects Not String Objects?
Jan 18, 2012Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Using conn As New SqlConnection("Database=Clinic_Management_System;Data Source=.SQLExpress;Integrated Security=True;AttachDBFilename=|DataDirectory|Clinic Management System.mdf")
Dim cmdRecord As SqlCommand
[code]....
Manipulating Pictureboxes Positions?
Dec 18, 2011i'm creating a game like text twist. that when i press letter a, i need to determine which picturebox contains letter a and display it to different location. that also goes to the proceeding letter a's. for example, i have a jumbled letters "aamba". in my code, it only gets the first letter a and removes it form the screen, it's nowhere to be found. and it won't recognize that i still have other letter a's i'm pretty sure about the location that i set it to be placed.here is my
(it's kind of brute force i think)
ElseIf e.KeyChar = Chr(97) Then
counter1 = 0[code].....
Manipulating Audio Files With .net?
Apr 2, 2012I need to be able to read audio files and manipulate them from within my own program (similar to how Audacity does it). Now, I'm not asking for something with a thousand effects and such, I just need the minimal as far as audio manipulation for .net goes. I really just need to be able to figure out pitches and frequencies being played at what times and the ability to move them all around.
View 1 RepliesManipulating Data From A Database Within VB?
Apr 30, 2010I'm creating a program that displays data from a Access database in DataGridView, and I'm able to "call" the database and display it in datagridview normally, but I need to be able to take the data from 3 separate columns and average them together, within VB.
My table basically displays 3 grades for a student, one column for the student's name and the other 3 columns for 3 separate grades, I need to be able to take the 3 grades from the same row and average them together, then display them in a separate column within DataGridView.
Here is my code so far, but this only displays all the records without the average:
Quote:
Public Class Form1
Sub UpdateGrid(ByVal sqlStr As String)
Dim dt As New DataTable()
[Code]....
Manipulating Data Sheet Next
Jan 10, 2012I am using the Print Document to create the impression in vb.net...Anything I set a certain number of records per page however see the other pages just like the first,some help to handle these records correctly in the leaves?
View 4 RepliesManipulating Excel Files Using VB8
Jul 7, 2011My script is pulling some information (filename, date, &c) from a server that contains only (nearly) identical excel files generated by a separate application whenever it is used. The goal is to find out who is using the tool and how often.
I need help with two things: extracting info from within the excel file, and appending the results to the SAME excel file each time it's run instead of creating a new file each time.
Here is what I have...
CODE:
Manipulating Output From Sql Command Asp.net?
Feb 10, 2011I am building a quiz application which has 5 categories. I am saving details like name, category and score to DB. Table where all data is saved looks like :
Name Category Score
John Windows 10
Tom Mac 5
On the start page i want to disable/enable categories if user has/has not took quiz yet (ie. if John has already completed Windows quiz but hasn't Mac then enable Mac Quiz, disable Windows and show Windows score).Whats the most elegant way of retrieving these values from database and then passing them to variable or boolean? What if search returns NULL (if quiz was not taken by John) and manipulating output from SQL Database? I am using vb.net 2.0 and SQL server 2005 and its an asp.net application.
