Make A Class To Manage The Communication With Excel?

Nov 10, 2010

I tried to make a class to manage the communication with Excel, but I am having problems.

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VS 2008 - How To Manage A Class Relationship

Apr 23, 2010

how to manage a class relationship I have these objects: A Layouts collection which implements a BindingList of Layout.A Parameters collection which implements a BindingList of Parameter. Each layout is to hold a set of settings, as defined in the Parameters Collection. Each layout should have a setting for every parameter, but the choices are constricted to the list of possible settings, kept in the Parameters object. For each setting there is only a single value. So it would look like this:

Layouts' Layouts; Collection [BindingList(Of Layout)]
Layout 1' Layout; Collection [BindingList(Of ...?? )]
Color Red' Parameter Key, [referene to parameter object..or..?]
Time Hour



Now, when I create a Layout object, I shall be restricted to chose one setting from each parameter, as already defined in the Parameter object, and assign to my layout object. And if I add/remove parameters, parameter settings, or the setting values, that should reflect in each layout; set to a default value, or deleted.

what type of class/object relationship shall I use for this Layouts collection in respect to the Parameters collection? I have no good understanding of the terms such as "inheritance", "implements", "interface", "abstract class" etc.. So I'm not able to see what concepts I need to study to make this come together nicely. Of course I could make a bunch of manual methods that keeps track of these things, but I have a feeling that I should make some type of relationship between these collections, which can make this somewhat easier..? I want to keep the collections as BindingLists down to the lowest level, in order to have two-way databinding with the UI controls.

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How To Manage Multiple DAT Files For Serialize Objects Of Same Class

Feb 13, 2010

How best to manage multiple dat files for serializable objects of the same class. If one of my data files goes past a particular size, I want to create a new file. I then loop through both files when I do processing. Is there any easier way to do this and what's the best size to do this at in terms of performance?

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Create A Form With Which The Opened Excel File And Allow It To Manage (as The Macro Commands)

Aug 25, 2009

I using Microsof Visual Basic 2008 Express Edition. I need to create a form like: 2 buttons are open and save existing .xls file which each generation can choose a different.2 textbox that can be entered on the column
and last button to when choose two columns, to find duplicates values and mark different color same values. Is it possible?

At the moment Excel file opens, but the comparison does not require the introduction of the columns

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Visual Studio - Manage Multiple Files That Are Part Of One Class - Classes, Modules?

Sep 23, 2009

My VB project is large enough that it requires several files. It was originally developed as a Console App and I created each file as a MODULE. All modules could use subroutines, data structures and constants from other MODULES and everything worked fine. I needed to add basic windowing to the app and this required that the app be converted from a Console App to a Windows Forms App. The main window is Form1 which is not a MODULE but a CLASS. The problem is that some MODULE based functions cannot access subroutines, data and constants that are defined within the CLASS Form1 unless they are incorporated into the CLASS file and this makes the CLASS file very large. If I add a new Class file to the project, it also cannot interoperate with Class Form1 in the same way that multi-MODULE code interoperates.

How does one spread CLASS code across several files and still allow it to interoperate as if it were in a single file? Alternatively, how does one create several CLASS files that operate the way multiple MODULE files operate.I am sure that there are all kinds of best practices that I am violating but the goal to to get some prototype software working and interfaced to some lab equipment.

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Business Model Class Object Relationships And Communication?

May 7, 2012

I'm developing a business model for an application where I am representing physical entities. The hierarchy created from this is neat, but as I'm doing this, I'm beginning to think about things like, what properties should be included in one that may already be apart of another? Or what if some properties are expected to be in one object, but another object needs to return that value, how does it communicate that request through the hierarchical chain? And what is the best practice for this design?

[Code]...

But then I got to thinking, what if I have a ConnectionPoint entity and I want it to return which Panel it has? Should it have it's own Panel association as well? Or should there be a method/pattern for communicating the request up the chain? And again... what's typical best practice?

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Make A Program That Can Manage The Startup Items?

Oct 18, 2009

I dont know how to do this at all. How can I make a program that can manage the startup programs (ex. Disable, delete, enable, exc. the startup programs) I don't know where to start. On a separate note, how can I make a file that executes multiple programs? I will provide more detail if needed.

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Make A Program To Manage Homehub 2.0 Router?

Jun 24, 2010

I want to make a program to manage my homehub 2.0 router.There's a reset option which requires a piece of script to be run;

<script type="text/javascript">
<![CDATA[
var restartButton = new Button("restart","","Restart my BT Home Hub",function(){restart_ajax();});
]]>
</script>

I think this will cause my router to reset, although I'm not sure.How would I get this to run in a vb.net program?

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Make A Program To Manage Installed Programs Or Shortcuts

Jun 3, 2010

i want to make a simple program where i can add/edit or delete a shortcut from an installed programs in my computer.

let say c:program filesmicrosoft officeoffice11winword.exe.

the purpose of this is i want some of my selected programs to be in a single window where i can click to open so i don't need to go to start then programs and open that specific program.

i want to run that program in startup so everytime i start my computer the shell or the program is already running and i could click the program that i want on that window.

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Make Modem Communication?

Aug 22, 2009

Our project requires machine A to communicate to machine B using modem. For example, machine A will call machine B, issue commands and machine B sends the results back. Also we want machine B to transfer files to machine A if there is something to send.

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Can't Make Difference Between Public Class And Private Class And Friend And Protected Friend Class

May 15, 2009

I can't make difference between public class and private class and friend and protected friend class.

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Make Class Array Inside Class

Feb 28, 2012

I am New to <acronym title="Visual Basic">Vb</acronym>.Net. this is my first test. i try to create small address book. but i don't know what wrong. it compile perfect but when it run it give error and not work. is there any other way to add same class like in class inside array?

[Code]...

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Make Trig/pre-calc Class A Little Easier And Make A 'app' That Solves Triangles?

Jan 13, 2010

Public Class form1
Private Sub btnAnswer_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAnswer.Click[code]........

how can i make vb realize that the side that is opposite of the given angle, has to be less than the other sides. Also im not sure what Acamar meant by If txtAngleA.Text <> "" AndAlso txtAngleB.Text <> "" AndAlso txtSideA.Text <> "" Then 'two angles and a side Because im not sure what <> does.

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Make Obejct Of A VB Class From C# Class?

Jan 9, 2011

Can i make obejct of a VB class from C# class, if possible then what i'll have to do?

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Make A New Class But Not Let The IDE Make The Designer

Jan 30, 2010

ok so i've got a Form class that inherits from System.Windows.Forms

the problem is that once i put that line in, the IDE automatically converts it into a class that has Designer enabled. how do i stop this behavior?

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Excel Instance Hangs In NET Class Project Application

Aug 7, 2009

I am writing a class project application that is loadable from within AutoCAD. This application generates an Excel workbook with extracted data. I am having a problem with Excel closing when finished. It seems the Excel instance hangs until my application is unloaded. I have found the section of code that seems to be causing to hang, but I'm not sure why its hanging to prevent it.

Below is a copy of my code for the class (top to bottom with exception of the FileExistValidation method... too many characters ). The code section that is commented out seems to be what is causing it to hang. If I uncomment that, Excel hangs, with it commented out, Excel closes out in the background.[code]...

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Calling Class (When Include Excel Automation) From Button Object

Apr 7, 2011

I am messing around with some Excel Automation just to get my feet wet and want to call some specific cells in my spreadsheet just for testing. I have one form in the project including a button. My question is how do I tell the button where to navigate to the cell to be tested?

My code for my Excel class is as follows:
Public Class Waybill
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim oExcel As Object = CreateObject("Excel.Application")
Dim oBook As Object = oExcel.Workbooks.Open("C:\TesterXL.xls")
[Code] .....

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How To Make A Border In Excel

Feb 7, 2012

How to make a border in excel from VB.net?

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Make Datagrid To Excel?

Oct 10, 2011

of code to transfer from a datagridview to Excel.I used to convert to adodb and do it that way, but I'm trying to get away from activex.o... I made the following method: It takes about 45 seconds to run. It also locks out my application's gui thread for that time period and it would be nice to also run this as a seperate thread...Can this go any faster? The background colors are important to the person I'm doing this for

Public Shared Sub toExcel(ByRef DGV As DataGridView, ByVal Name As String, ByVal lastSaved As String)
Dim rowNo1 As Integer

[code].....

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Asp.net - How To Manage An IF Statement

Nov 17, 2011

I have a total of 102 values associated with a fieldname called ArrivedFlag.Then I have a TextBox control with an id of txtFlag on the markup page.In my codebehind, I have an if statement that says:

If txtFlag <> "value1" and txtFlag <> "another value" Then
lblMessage.Text ="You don't have the ability to view details"
end if

This works fine.However, given that there are 102 values, I feel that doing an IF statement 102 times is a bit inefficient.

Dim allowedFlags = New List(Of String)()
With { _
"value1", _
"another value"

[code]....

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Best Way To Manage GUI States

Dec 11, 2011

I was asked by a client to create a tool that would let a user add/modify/delete/read content from a database. The content can be read from TextBoxes.

My question is, what is the best way to manage GUI locks/unlocks for the different states of the program. IE: If I'm in a "insert" mode, some GUI elements should be enabled, and some not. If I'm in the "read-only" mode, a bunch of them should be disabled... etc.

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Best Way To Manage Strings?

Aug 21, 2010

I am writing a program that uses an array with three columns and a varying amount of rows. I need to load info on a list of files in an archive(specifically: file name, size, path), and I am wondering what the most convenient way to store strings(to be loaded into the array) is.

For example: I tried creating a new .resx file in my project, and writing a function to be executed on form1_load that reads the strings from the .resx file and places them in the array in their correct column, but unfortunately had no success.

I really have no idea how resx files work, I can put strings in them using the resource editor, but I don't know how to retrieve them using resourcemanager.

I would just put the info straight into an array, but it's much easier to update a .resx file when the archive changes than it is to update the code.

Could someone please tell me how to use .resx files in vb.net? Or an easier way of accomplishing my goal?

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Can't Manage To Add Different Values Together

Feb 3, 2011

I can't manage to add different values together...

TextBoxAnswer.Text = TextBox1.Text + TextBox2.Text + TextBox3.Text + TextBox4.Text

I import decimal values from my SQL Server into the TextBoxes 1-4, which works fine. But when I try to add the values together into another textbox the answer is just the values combined like a string...?The column of the table in the SQL server has a datatype decimal(18, 2)I have also tried to convert the values in the textboxes into int, str, double... Nothing seems to work...

Example:

Answer = 2,50 + 2,50 + 5,50 + 4,50
So,
TextBoxAnswer.Text = 10,00

but, all I get is:

2,502,505,504,50

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How To Manage Directories

May 29, 2012

I am now convinced there is no such thing using VB 2010 Express. I have read, re-read, studied, copied and pasted code to no end and all I get are error messages galore. It appears there is a big gap between what's on line as far as tutorials and the code that VB 2010 Express will accept. I hate to sound so lost but at the moment I am. I used to program in BASIC and QBASIC. I was a master at opening up ascii text files, reading them in sequential order, sorting, manipulating, then re-writing them. It was all so easy, like this: [code] That's all I want to learn how to do for the moment. But every tutorial or article I find goes off in to wild tangents about How to Manage Directories or it reads the entire text file into one giant object. Or worse, there's some code which looks promising but it won't run under VB 2010 Express or it might run but the author leaves out important parts of the code that have to be declared ahead of the subroutine....you all know what I mean. It can't be this difficult to just read a text file one line at a time, therefore it shouldn't be so difficult to find an accurate and up to date article on this.This is for really rough programming. I don't need an interface of any kind. The user, will not even need to know that anything is happening. I simply want to read text files, manipulate what's in them and then re-write the edited text.

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How To Manage Tables Or Any Other Way

Jun 8, 2011

im using dreamweaver and i have a table in which i have an image. When i add another table under the table existing it comes right at the bottom. What should i do to that table so i can move it and place it anywhere around the page. displaying my data wherever i want. And another problem is that, when i place something on the top it doesnt show up there it comes slighty away from where i had placed.

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Manage Another Pc By Program?

Jul 26, 2009

I want to know that what we use to manage another computer.

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Manage Pointers In .Net?

Dec 15, 2010

Id'like to pass some variables (string and integers) to a class, and when I call a method of that class, it has to change the original variable.I know it was not impossible in C#, but I'm using VB2010, I made a C# project into my solution, but methods using pointers are hidden into VB. How can I make that kind of change?

An example:

Sub ChangeValues()
Dim A As Integer = 1, Str As String = "Start String"
Dim X As MyClass(A, Str)
X.ChangeInt(2)

[code]....

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How To Make Class Convertible To Another One

Jan 3, 2010

Is it possible to make my custom item class so that I can put it straight into a listviewitem? What I mean is a listview and I want to be able to do Listview.items(0) = Item. Or is this not possible?

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How To Make Class To Use In Form

Aug 20, 2009

I made this class:
Imports System.IO.Ports
Public Class Controller
Dim Serial As New SerialPort
Dim CurrentAzimuth As String
Dim CurrentElevation As String
Public Function Open(ByVal COMPORT As String)
[Code] .....
And I want to use it in a form. How do I call this class "controller" and then what code do I need to use it in a windows form?

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How To Make New Instance Of Class

Feb 1, 2011

I have a class "Character" that holds character stats and skills. I make a new instance of it "MyCharacter". The problem is I would like to use it like this.
MyCharacter.stat.charactername ="whatever"
Where stat is another class within Character or
MyCharacter.skill.lockpick=10, b
But I can't seem to do it.

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