So I am making kinda of wizard, with options and a next buttons all in the same form but using hide and show.I have 3 of them. How can I make variables accessible to the entire form?
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How do you make listbox accessible outside the form it is situated on?
View 3 Repliesassume that i have two forms(form1 and form2)form1 code
Imports System.IO
Public Class Form1
Inherits System.Windows.Forms.Form
[Code]....
I'm not sure if I stated that right in the topic, but I was wondering if anyone knows how I could make a textbox take up 100% of the form.
View 2 RepliesHow to make main form large: entire workspace less 10% margins on each side using vb.net.
View 2 Repliesi am developing a system for a business and would like the server to be one of the computers of the
organisation. My problem is that i don't know how to make the database accessible by the other
machines.
I have an issue with an app i am writing, i need to make a variable accessible to any module or class within the project but that cant be accessed outside of the app as it is accessing info the end user shouldn't have access to.
Ok, well a practice i have gotten into in the last few years is to declare a module on the same page as the main form and declare variables either friend or public (global variables). with my app public is not good so i tried Protected Friend but i cant use this within a module.
I tried placing it at the top of the main form but one of my classes can't access it, what would be the right way to do as expected. besides the main form i have 2 classes call them class1 and class2:- main interacts with both classes class1 accesses class2 class2 doesn't access class1
How do I make Variable eccessable to other forms in my app?
View 3 RepliesI'm just taking over an asp.net/vb site, and I'm definitely still learning. I'm receiving the following error:
BC30451: 'ByOwner' is not declared. It may be inaccessible due to its protection level.
I call a datasource with:
<asp:GridView ID="CaseCountByOwner" runat="server" AllowSorting="true" DataSourceID="ByOwner"
And here's what is in the codefile:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
HitMe.AddHit(Request.UserHostAddress, Request.UserAgent, Request.Url.ToString)
Dim user As String = Request.QueryString("user")
If user.Length() = 0 Then
[Code] .....
I have a RadioButtonList control which triggers a Sub LegalGaps on SelectedItemChanged event. This Sub creates and fills in an array the size of which depends on the User's choice of radiobutton options. The second Sub AvailableDays shall be able to read that array and highlight the days in the Calendar control accordingly on DayRender event. May I somehow declare an internally created variable a public one?
View 2 RepliesI created a DB using following code.
Dim conn As New SqlConnection("Server=.SQLExpress;Data Source=;Integrated Security=SSPI")
Dim cmd As New SqlCommand("", conn)
cmd.CommandText = "CREATE DATABASE MyDBTest22 ON ( FILENAME = 'D:dbTestATTTTTTT.mdf' ), ( FILENAME = 'D:dbTestATTTTTTT_log.ldf' ) FOR ATTACH"
[code]....
It ran without any error but when I opened SSMS, I could not see my file attached to the server. Also, I tried to make a connection, but it says file does not exist but when I tried to re-run the above code, it says File already exists.Something wrong with my way of doing it? I want to see it attached with the instance of my SQL Server Express 2005, using SSMS.
In general, according to the OOP paradigm, my understanding of encapsulation basically says:
-If a member is private, it can only be accessed by the class.
-If a member is protected, it can only be accessed by the base class and any derived classes.
-If a member is public, it can be accessed by anyone.
If I have a nested class, can I declare a property to be accessible only to that class and the parent class it's nested within? For example:[code]In the example, I cannot directly access myNestedObject.myInt or myNestedObject.myDbl from an instance of ContainerClass if those members are Private or Protected. But suppose I don't want to make them Public,because then they are TOO exposed: they can be altered from anywhere, not just within a Container Class object. Declaring them Friend would still be too weak as that would allow them to be altered from anywhere within the application.
I want to create an IMAGELIST in a main form and add to it then have it accessible within a child form. I found several MS examples on database shared access but this is NOT the concept I am after. Straight forward:
Child_Form.<function_to_execute_in_child_form>(The_Passed_Imagelist)
So, within the child form it want to do whatever I like to the IMAGELIST! I have tried passing the object by reference and anything I could think of.
Hi
I've got a pretty general question about the best practice in passing an object reference to a Form in VB.NET. My form is a dialog and I've created an overload ShowDialog method, where I pass an Object into it ByRef.
The trouble is, I want to be able to refer to that Object throughout my dialog Class and not just in the ShowDialog method. For instance, some of my Events for controls on the form, need to reference that object.
I know I could create a local Private variable in the Class and assign it to the passed value, and then use that value. However I'm thinking this isn't very efficient because it would (I believe) create a new copy of the Object (which is a complex, large class in itself).
Alright, first things first i'm sorta new to VB .NET i know VB6 like no one's business and am looking to upgrade but to do that i need to know how to be able to access form controls in modules, and i've done that, but i'm not sure if its right, here is my code frmMain:
Option Explicit On
Option Strict Off
Friend Class frmMain
[code].....
this code get the data from the sql where the name = @word which is the variablecontaining the word to search for my problem is i want to check all the table columns not only one column ? is it doable ?
Public Function Search(ByVal word As String) As DataTable
Dim Dt As New DataTable
Dim Adp As New SqlDataAdapter
[code].....
I've recently began to use OOP in my application and now I'm stuck on how to use it properly.
View 2 RepliesI've got a form with a listbox on it.In a second form I inherit the complete first form. But when I try to use that listbox in the second form with e.g.Index = LstWoodshop.FindString (Order(0))(where LstWoodshop is that inherited Listbox) I get the error message:'LstWood shop' is not declared. It may be inaccessible due to its protection level.What or where can I change this setting so that this listbox on form 1 is also available/accessible on form 2?
View 5 RepliesI added a serial port com1 to my vb.net form. I created a new class and wrote a method to open the com1 and created its object in the main form and called the method and its opening.THen i created another class wrote a method to write data to the com and same way created an object and called it but i am getting the error as port is closed. What am i doing wrong.
View 1 RepliesI have another question (and anticipate that I will have about two more before I'm done with my class project). Here is my issue (and I'll copy and paste my code for clarification). I need to link up the control from the form on either side of the current form that I'm working on so that if I click on the buttons that I'm titling previous and next that I can click on the proper button and either go directly to the previous form or the next form. I was successful in doing this for two earlier forms on this project (with some direction from a couple of helpful people on this forum before), but for some reason, no matter what I details I use the controls do not connect to the previous and next forms.
Option Explicit On
Option Strict On
Option Infer Off
[code]....
I created a class with a function. How can I make this class usable by other classes and other forms within my project?
View 9 RepliesI have a ListView with two columns, and before enter a new item in the listview, I want to prevent entering a duplicate value, so I found ListView.FindItemWithText to accomplish that.
But I realized that if I enter 232323, and then enter 2323, which is different but starts with the same digits as the first entry, the function returns that item as a match.
I wonder if there is any way to match the whole text (exact text) to avoid the above.
Here is my code:
Dim ChkSIM As New ListViewItem
ChkSIM = lvItems.FindItemWithText("2323")
If Not ChkSIM Is Nothing Then
lblErrorSIM.Text = "Already in list"
End If
I need to disable every control on my Form so that the user can not click or press any key that will change values of listboxes and other controls on the form. I need to be able to lock the whole Form like this because as part of the project I have to print the form 3times with 3 different colors and the only way I've been able to get it to work is with a timer. So for about 3 seconds the form is changing colors and printing itself, so in between that time the user could accidantely click something and change a value on the form when all three prints should be of the same form, only difference is in the color.I can't use disable as that will make all the controls look faded and messed up, I need a clean way to prevent anything from being changed.
View 39 RepliesI'm trying to make my form nearly transparent when the mouse is not inside the form by changing the opacity.I'm having trouble because if the mouse is moved quickly, I can't get its position accurately. when the mouse is moved into a control, it's considered to have left the form. Is there an easy way to do this that I might be missing?
View 6 RepliesI have a user who wants to print the form that is on the screen(the entire form not just the data) on the click of a button, is there a quick and easy way to capture it and print it. Kind of like a screen shot? I suggested that they could just do alt/printscreen and capture the form that way and print it but they want it all to be done from a print button for them.
View 14 RepliesI have a program and wish to generalise its appearance at startup on different machines. This worked OK until I moved it onto a Windows 7 unit with a 22" screen. The front page covers less than 2/3 of the screen. I know I've asked the system for 'working area' but could not find a reference to the entire screen which other applications seem able to use. How can I catch up with them? The code is from VB in VS2005. Is this my limitation?
[Code]...
Each business object has a matching object that contains sql calls. I'd like to restrict these sql objects in a way where they can only be used by the matching business object. How can this be achieved?
Update Greg brought up the point about testability. Since the SqlObjects will contain very business-process specific sql I don't want them reused in multiple buiness objects. (Basic CRUD operations are all code-generated) Is there a way to make the SqlObjects accessible to only one business object in the business assembly (like yshuditelu and Greg Beech showed) AND expose the SqlObjects to the unit testing assembly?
My form contains lots and lots regular expression and other things in one button. whch when pressed takes some time to process.. so the form kind of gets stucked while the processing is bieng done.is there any coding for which it diables the entire form until the process is completed? like disabling the entire form and showing a text "please wait ... processing data" so user can not use other buttons or features at the same time or it might get crashed.
View 5 RepliesI am using Visual Studio 2010..I have multiple forms and when I hit close button(red X, top-right) from any form, i want the project to close entirely.Now when I do this, this does not happen by default. I always have to click on the 'stop' button in VS for it to close.
View 6 Replieshow I would be able to print the entire portion of the screen which the form occupies,Basically, my problem lies in that the way I print now will properly print the form's buttons/labels/textboxes etc. But it will not print the WebComponent AxChartspace that I have added to it. So basically my form is partially blank.
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