I'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.
I am trying to make a simple demo of a DataGridView bound to a database table. I want to add a row, delete a row, and save the table. I used the IDE to do just about everything. It created the BindingSource when I set the datasource of the DataGridView to a table of a DataSource I added to the project.
Now the only code looks like this:
Public Class Form1
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
I set the AutoIncrementStep to 1 in my Key field in the dataset (the .xsd). I left the Key field visible in the DataGridView and it seems to be adding the correct Key when a row is added. However, I still occasionally get the "concurrency violation" error if I just mess around with these 3 buttons. Any idea why/how to prevent that?
I want to do the following in Vb.NET 2005 windows form
1. saving Ms-office documents in Access 97 using VB.NET
2. Opening the saved document in Access 97 using VB.NET and show to user after user clicking a link correspoding to the record
3. After user modified the document/xls file, it should once again save into Access 97 database.[URL]..This document explains how to open and save a document from BLOG fields.But without physically saving the document into local hard disk, is it possible to open in OLE control? and after modifing saving back to Access 97 database.
I created a custom class for a custom object. I instantiate like so[code]...
Now, I have two problems. First, right now this is just overwriting the same object properties, again, and again. I need to somehow dynamically name the object. Then, I need to place these objects in an array so I can iterate through them...
make objects from the ToolBox using code instead of changing existing objects invisible then visible later?
View 7 RepliesI have difficulty in using the vb code dom. Basically, I want to compile this piece of code dynamically:
Imports System
Imports System.Collections.Generic
Imports Microsoft.VisualBasic
Namespace Formula
Public Class TsCalculator
[Code]...
So I have my main form (Form1) and I have a module called globalMod. On start up, Form1 loads, and globalMod contains functions and global variables (using Friend). I need to be able to have a function inside of globalMod edit a label/text box/etc in Form1. I tired Form1.object.Text = "content" and it doesn't do anything, even if I update / refresh the form.
View 1 RepliesIs it possible to modify or add code or module into a windows application after deployment?
View 5 RepliesI have a form that displays data. What I would like to have is a button that when pressed will display some test extran textboxes in a dimmed/transparent type of fashion. I can get that using another form, but would like to do it without the second form.
View 1 RepliesI know that when I add things to the designer in Visual Studio, it has to be generating code for them somewhere. Where do I find the code that Visual Studio creates when I add controls, change properties, etc in the designer?
View 2 RepliesI already made a code on vb.net to generate random numbers with letters using HEXA + date time. Now, all i want to know is how to set it to single use? Once they got it, they can no longer use it back. They have to request for new one..
View 10 RepliesI've seen this great example of serial communication in VB.NET[URL]..I try to use it in a project I am working on but somethings are not clear to me.1: Now the send and received data is shown in one RichTextBox but I would like to split this into two RichTextBoxes (RtbSend and RtbReceived).It is unclear to me how and were data is assigned to the RichTextBox?
2. the received data is shown in the Richtextbox as one long line, I would like to get a new line for every send message.So for example: I I send "test" four times, I would like to see:The example describes that "comPort_DataReceived" is executed when data is waiting in the buffer. Where can I see the eventhandler responsible for this? How does it know data is waiting?The problem is this kind of coding is a bit to difficult for me. I want to understand the code before I implement it into my project. I understand most of the code but this is unclear to me.
mostly the data inside the datatable is always typed by ourselves, while in this case, i want the computer itself do caculate or whatever and then input in this table and finally the chart will get the data inside the table and then draw the line automatically.is there any sample codes for me to know....(Above is just a simple idea, actually my project is to record the time spent in 2 status(working and idle) and then do the database table. but the GUI should look similar to the image above)
View 5 RepliesIs it possible? Self modifying codes based on users choices.
View 3 RepliesWhen debugging a program and then we take it to a line breakpoint,then I want to modify the code again.but could not and such message appears in the image which I attach.What can we edit code program at the time of the process of debugging.This can be done in visual basic 6 ide?
View 2 Repliesbut it's something I'm pretty consistently needing for the sake of my own sanity, so:If you add a Settings file to any project in Visual Studio, VS provides a GUI making it quick/easy to add a new Setting entry and assign it a Type; at that point the actual code-behind is automagically created with a variable and a property exposing that variable.Can we build our own designers to generate code this way, with a GUI allowing for those quick/easy variable/property assignments?
View 4 RepliesI created a custom datagridview. In the constructor of that datagridview, I set
Me.AutoGenerateColumns = False
and then, declared and added 4 DatagridViewImageColumns and 140
DatagridViewTextBoxColumns by the code
...
Dim dvgCol as New DataGridViewImageColumn
[code]....
But when I add an instance of that datagridview onto a form, in the form.design.vb there are many code defines for each columns and then sometimes adds additional code to create those columns again. Sometime when I delete the datagridview control in the form,that code is not deleted.
I'm trying to make alterations to an existing project, and I've found a project in the solution which is full of generated classes.Problem is, nobody here can tell me what generated them, so I'm pretty much left with pasting one of the classes in here and hoping someone will be able to tell me where they came from.
The solution I'm working on uses Expression Blend 3 and Visual Studio 2008. Dunno if that's relevant, but I'm trying to give as much information as I can think of... As well as this class, which appears in its own file, there's an "SPResults" file, which contains about 5000 lines of accessor classes of this type. Not quite sure why EndCustomer is in its own file...
From what I can see for myself, there's a stored procedure in one of the databases this program links to, and that SP's name is "GetEndCustomers". Something has then created a class called "EndCustomers" to represent the return type of this procedure.
The first part is a function from a class named Database, which returns a collection of the objects in question.
<FunctionAttribute(Name:="dbo.GetEndCustomers")> _
Public Function GetEndCustomers(<Parameter(Name:="Dummy", DbType:="VarChar(1)")> ByVal Dummy As String) As ISingleResult(Of Data.EndCustomer)
Dim result As IExecuteResult = Me.ExecuteMethodCall(Me, CType(MethodInfo.GetCurrentMethod, MethodInfo), Dummy)
[Code]...
So, yeah, can anyone tell me what has been used to generate this class? It could be something in Visual Studio, Expression Blend, SQL Server Management Studio, or some obscure bit of software I haven't even noticed is on the PC. Any clues, anyone?
I want to get a part of the text a webpage, but when i get the source code using a webclient it gives me a javascript on the place where the text I want is. This javascript generates a lot of text, but how I can I let my program get this text? BTW if I select the text in Firefox and right-click view source code then I see the source of the text, but not when I just view source code of the whole page.[code]....
View 39 Replieshow to get the "windows form generated code"? I've tried double clicking all things I put in the form but it doesn't generate any default code...
View 1 RepliesIs there anybody who can tell me what i'm doing wrong in the following code if I want to delete the restart button.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
Have you tried setting some dimensions for the grid? i.e. width/height.
View 1 RepliesI'm having a problem using XML literals with a StringBuilder in VB 2008. If I use this code everything is fine.Dim html As New System.Text.StringBuilder
html.Append(<html><body></body></html>)
MsgBox("hello")
Now the problem is I want to wrap HTML around something that is generated in code.
html.Append(<html><body>)
msgbox("nothing happens")
When the HTML doesn't have the corresponding ending tag, it acts like it goes beyond the ) and keeps looking for it.
How can I modify the below code to get a result as it is in the vb6 [code]...
View 9 RepliesLet say I have the following classes[code]...
If I wanted to say, alter the code definition of the automatic property X (at runtime, perhaps in Sub New), such that I could throw the PropertyChanged event
modify the VB6 code to VS 2008 for delete command?
View 11 RepliesIn one of my project I have the following lines:
Me.SqlDeleteCommand1.CommandText = "DELETE FROM [CLASS] WHERE (([MAIN FACILITY USED] = @Original_MAIN_FACILITY_USED) " & _
"AND ([START DATE] = @Original_START_DATE) AND ([CentreId] = @Original_CentreId) " & _
"AND ([RowVer] = @Original_RowVer))"
Me.SqlDeleteCommand1.Connection = Me.SqlConnection1
[Code]...
I moved from SubSonic 2.x to 3.0 and noticed that all my classes are combined into the ActiveRecord.vb(cs) file. Is there a way to have my classes generated individually in a separate folder (DAL) as I was doing with 2.x?
View 2 RepliesI have started with a small project in VB2008 Express which grew to a complex application. I have deployed the application recently discovering it is rather small, and the major issue is that code-generated controls (checkboxes, comboboxes, textboxes) are not displayed as during development. I have declared the code-generated controls in the declaration region, and there are about 250 controls. According to user selection some of the controls are added to a container panel. Now, I am concern that because I declare those as public (static?) variables, it uses much memory and causes the problem in the compiled application. Is that correct that static declared and code-generated controls uses much memory? How to avoid it ? I need the controls as public variables. Is it better to add all 250 controls on the form in designer mode, and use the property Visible (control.visible=True)?
View 1 RepliesIs there a way to remove items in code generated in Codedom from VB code?
For example at the top of all the code I generate, it has:
[Code]...
I'd like both of these to go away - the commented text and the both the Option xxx. I've tried toying around with CodeGeneratorOptions, but have not been able to remove the above from generated code.