Event Procedure For Object Not Created Until Runtime?
Nov 3, 2009how would I create an event procedure for something not yet on a form?
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Retrieving A Tag Of An Object Created At Runtime?
Dec 10, 2010My
Public Class Form1
Dim x As Integer = 0
[Code]....
As you can see, i can retrieve the tag of the button (which is created at runtime) without any problems, i've made a temporary msgbox to show me the value of the tag, just for testing purposes. What i do have a problem with, is retrieving the tag of the individual web browsers, how should i do this?
Next issue, how would i code for my buttons to show the web browser with the same tag as the button that's just been clicked?
Event Handling For Controls Created During Runtime?
Apr 18, 2012I have written a code to generate numerous command button during runtime depend on the user selection. I would like to find out how do we handle the command button click event?
View 4 RepliesTrigger An Event From A PictureBox That Is Created During Runtime?
Apr 13, 2009I am trying to figure out out ttrigger a click event from a Picturebox object that is created during runtime? application that I am developing using Visual Studio 2008 during runtime a user selects a shape from a Panel3 on the right side of the form and then clicks on a location inside Panel1 where that shape is copied over. Almost like a Visio application but without the drag and drop.The name of my new shape via a is call "C_Object" I would like the user to be able to select this new shape and a click event to be raised but because this PictureBox object was created during runtime I am not seeing the event.
View 2 RepliesUsing Same Click Event For Many Runtime Objects Created
Jul 23, 2009I have created a program that allows the user to click on screen and add many ovalshape objects. But I have got stuck as now I need to create a rightclick event for any of the runtime generated ovalshapes on screen and dont know how to refer the right click event to all the many objects?
My code for creating the oval's are as follows:-
Dim
Drg As New ShapeContainer
Dim Shape As New OvalShape
Drg.Parent =
Me
Shape.Parent = Drg
Shape.Size =
New System.Drawing.Size(10, 10)
Shape.FillColor = StampColor
Shape.FillStyle = FillStyle.Solid
But how do I write a click event now for any of these runtime created objects???
Change An Object (textbox) Created In Runtime?
Nov 1, 2010I have written some code to generate 10*10 textboxes during run-time.the problem is; I don't know how to access / change them after they are created. after some googling, I found this code to show the text of ie box42;
MessageBox.Show(Me.Controls.Item("box42").Text)
but it gives an error (nullreference exception was unhandled) hereby the code;
For i = 1 To 10
For j = 1 To 10
Dim tb As New TextBox
tb.Name = String.Format("box{0}{0}", i.ToString, j.ToString)
[code]....
Call The Click Event From The Button That Was Created At Runtime?
Jan 6, 2009I'm writting a program that will output the column headings of the database onto a form in a label along with a text box for the user to input their own information and a button to add a new record in the database. My problem is I do not know how to refer to the text boxes or how to call the click event from the button that was created at runtime.
View 12 RepliesCalling Object Event Sub - Timer Procedure
Jun 3, 2011I'm developing this procedure using a timer object. The thing is the procedure is not in the timer's event procedure but I want it to depend on the timer's interval when executing, it's just not calling the timer procedure. How can u declare objects and use their event procedures in code.
View 2 Replies.net - Create An Event Handler For A Programmatically Created Object?
Sep 3, 2011Say I have an object that I dynamically create. For example, say I create a button called "MyButton":
[Code]...
VS 2010 Create Event For Programmatically Created Object
Feb 17, 2011I'm creating a textbox at runtime, which works fine, but now I need it to have a selection_change. How do I do that?
View 9 RepliesDeclaring A Object - Instance Of An Object To Be Created When A Form Loads Or Another Class Is Created
Oct 5, 2009If you want a instance of an object to be created when a form loads or another class is created, you have two options:
Public class example
private IAmAObject As IAmAObject
public sub new()
[CODE]...
Or like this:
public class example
private IAmAObject as new IAmAObject
public sub new()
[CODE]...
I always use the first one. It's more type work but I think it's neater. How about you people and is there any real difference between the two?
Accessing Controls Created Dynamically In Another Procedure?
Feb 13, 2009I'm having trouble trying to access a list of comboboxes created dynamically in one procedure from another. I believe I have to add in an event handler but I not sure how this is going to work. Or should I change the array scope?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'variables declared here.
[code].....
When Calling New On An Object - Can The Object Being Created Refer Back To Its Caller
Nov 11, 2010I hope the question makes sense, anyways. I'm looking to know if in VB.NET, when we call an object's constructor, is there some kind of a reference that points back to the caller? I'm interested because of a corner case where I want the object being created to first be able to validate the existence of some data in the caller before it allows itself to be created. If this validation fails, I plan on throwing an exception. This corner case will never happen at runtime unless the object being created is used improperly by a programmer. The object being created is not inheriting the object I want it to validate, so I can't do anything with the MyBase qualifier.
It's bit of a "future-proofing" issue that I have a (bad) habit of doing. Not critical -- I can always leave stern comments behind as a last resort. Wanted to know if this was possible.
Rebuild - Created A Program Setup Using Standard Procedure
Mar 15, 2011I would like to get some advise from all of you. I created a program setup using standard procedure(adding new project.. setup and deployment, setup project). When I ran the setup and installed the program in computer, It's working. Then I decided to amend certain form in the program. I right click at solution"my program name" and click rebuild solution. then i try to run again the setup, there is nothing happen after that(It remain like before amendment). Did I miss anything here? I have never used this method before and this is my first time using it.
View 3 RepliesEdit A Sub Procedure During Runtime?
May 1, 2010I'm trying to make a program where a Sub Procedure can be modified during run time.
An example:
1) The user types into a text box (TextBox1) inside of the program:
Do
a = (a + 1)
MsgBox(a)
Loop until Looping = False
[Code]....
Get The Stored Procedure Have Created At SQL Server Management Studio Using Code Behind The Files?
Aug 3, 2011How can I get the output data of sql procedure from SQL Server to my asp.net[vb.net] page dropdown list?<asp:DropDownList ID="DdLocation"></asp:DropDownList>
View 1 Replies.net Disable Runtime Created Buttons?
Oct 28, 2011i have created dynamic buttons at runtime and i would like to disable them when a user clicks on a form button.This is the code i have for that button:
Dim intXX As Integer = 0
Do Until intXX = intX
userAvatar(intXX).Enabled = False
intXX = intXX + 1
Loop
The buttonNames is an array of all populated button names created at runtime. However, trying the .enabled = false at the end of that does not work. What other ways are there to do that with buttons created at runtime?
[Code]...
Access / Use Objects Created At Runtime
Dec 23, 2010I'm trying to develop a program that turns matrices into their reduced Echlon forms. The user specifies the number of Columns & Rows for the matrix, which is generated by the following Sub Routine
Private Sub ButCreate_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles ButCreate.Click
'Columns and Rows are specified by the user
rows = TxtRows.Text
columns = TxtColumns.Text
'clears all of the controls(text boxes) from the TableLayoutContainer
[Code] .....
How to do is access/manipulate those newly created textBoxes. After the user enters values to those boxes, I want to assign each of their columns to an array.
DataGridView Behave Different When Created At Runtime?
Jun 15, 2009I am using the follwoing code to generate Menustrip at runtime.
Dim dgv1 As DataGridView
dgv1 = Me.MenuDataGridView
ReadMenuInGridView(dgv1)
Dim MItems As New SortedList(Of String, ToolStripMenuItem)
For Each dgr As DataGridViewRow In dgv1.Rows
[Code] .....
Where the sub "ReadMenuInGridView" passes the DGV by reference and populates it with the menu item from the database. My question is,, the program as it is in the form listed above works fine (where I have a DGV "MenuDataGridView" created at design time), however, if I want to make it 100% dynamic and use a DGV created at run time I will not get the menu? Actually the program will not get in to the For loop?
Simply to do that we can replace the first 2 statement with:
Dim dgv1 As New DataGridView
'dgv1 = Me.MenuDataGridView
Destroy Runtime Created Controls?
Oct 28, 2009I'm developing an app which creates like 30 labels at runtime.The problem is that with the click of a button, I need to destroy those created labels.[code]...
View 17 RepliesGlobal Variable Can Be Created During Runtime?
Jul 16, 2009global variable can be created during runtime?
View 1 RepliesManage Toolbox Created At Runtime?
Jun 3, 2011i just made an form where with button add 10 textbox whith this code:
For X = 1 To 10
Me.Controls.Add(tx)
tx.Visible = True
[Code]....
now i want write somethings in textbox (i.e. textbox1.value="hello") but no find way, because in code is not defined textbox1, create at runtime (of course).
Movable Labels Created At Runtime
Jan 18, 2010I have a form on which I want to place labels created by code executed by clicking a button(cmdAddLabel) at run time. I subsequently want to move the newly created labels around on the form. The following code sucessfully creates the labels at run time whenever the cmdAddLabel button is clicked:
Private
Sub cmdAddLabel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAddLabel.Click
Dim
[Code]....
Reference TabPage Created At RunTime
Jan 16, 2012Been searching a trying examples for a couple of days and always fall back to the "null reference" error on this one. I have a set of instructions coming from a SQL database and the number of instructions is a variable. Therefore, I have a TabControl which I add TabPages to at RunTime depending on the number of instructions there are. The TabPages are then created with the names; Step1, Step2, Step3, etc.Each TabPage is made with the same controls and all of the controls are named the same from page to page (e.g. "instr" is the name of a TextBox control that exists on every TabPage).I can successfully create a GetControl method that will return the correct TabPage, but I cannot reference any controls on that TabPage.I can only change properties of the TabPage.If I try to reference a specific control on that TabPage, like the "instr" TextBox control, I get the null reference error.[code]
View 9 RepliesTarget One Of My Pictureboxes Created On Runtime?
Oct 18, 2011I have successfully randomized certain pictureboxes in a grid to contain mines, and show that mine, and for testing purposes, those mines are currently showing. What do you think I need to do to be able to say[code]...
View 3 RepliesTarget One Of Pictureboxes Created On Runtime??
Dec 13, 2010So basically, i have successfully randomized certain pictureboxes in a grid to containmines, and show that mine, and for testing purposes, those mines are currently showing. What do you think I need to do to be able to say:
View 1 RepliesUsing Textbox Text That Created During Runtime
Apr 21, 2011i want to get the text that is input by the user to the textbox and use it in the parameter but why can i done this.. i declare a name for the textbox that i created during runtime but i cannot get what the text that input by the user.i use the (textbox name that will create during runtime).text but it gives me a blue line.
View 7 RepliesVS 02/03 Retrieve Value Of Textbox Created During Runtime?
May 6, 2009I have been doing occassional VB.NET for a few years but never had the need to do something like this until today.My app creates a few comboboxes during runtime, and I need a way to assign the values of those textboxes at design time.
View 9 RepliesAccess DB - Column Created At Runtime Is Not Updating?
Sep 19, 2011My program creates columns at runtime with the following code:
Cmd = New OleDb.OleDbCommand("ALTER TABLE [Parent] ADD [" & ColumnDate & "] int", con)
objCmd = New OleDb.OleDbCommand("ALTER TABLE [Parent] ADD [" & ColumnDate & "] int", con)
objCmd.ExecuteNonQuery()
I add data into the newly inserted column with the following code:
da.SelectCommand = New OleDb.OleDbCommand(sql, con)
Dim cb As New OleDb.OleDbCommandBuilder(da)
cb.QuotePrefix = "["
cb.QuoteSuffix = "]"
ds.Tables("SchoolMaticsDatabase").Rows(inc).Item(ColumnDate) = Hours * Num
da.Update(ds, "SchoolMaticsDatabase")
All of the above works fine; the issue arises when I try to edit the information originally placed in the newly added column. These are the approaches that I have taken. (None of them give an error message; it simply won't update within the database.)
da.SelectCommand = New OleDb.OleDbCommand(sql, con)
Dim cb As New OleDb.OleDbCommandBuilder(da)
cb.QuotePrefix = "["
[code]....
I added a column to the table manually via opening the access database and all the above approaches work for editing data stored in that column. So I believe it is something to do with the fact that the columns are created at run time.
Access Textboxes Dynamically Created At Runtime?
Apr 18, 2012I add textboxes dynamically at runtime. How do I access them later in the program?
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