.net Disable Runtime Created Buttons?
Oct 28, 2011
i 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]...
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Dec 16, 2011
I am adding a grid of buttons to a form at run-time, and all of then use the same Handler.My question is : Is there any way I canadd the TextBox at run-time ?I know how to but without it on the form, the IDE isn't very happy about the "MyClick" Sub - TextBox1 is not declared......
' some logic here to make nice rows and Columns of buttons
' with different .Text and .Name
Me.Controls.Add(btn)
[code]....
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May 7, 2010
I am trying to Disable the "Move First", "Move Previous", etc in a Navigator Bar. I want them Visable, just disabled. In other words, I want them to show (grayed out), just not clickable. In the Move First properties I set Enable = False and Visable = True. It looks grayed out in the form design but when I run it, the arrow is still clickable. If I make Visable = False, the button does not show up in the app.
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Dec 6, 2010
I am using Vb 2008, and im trying 2 enable a copy button thats in a toolbar until there is text selected in my rich text box. (normal state of the button is disabled.)
my code is below
If Editor.SelectionLength > 1 Then
CopyToolStripMenuItem.Enabled = True
End If
End Sub
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Mar 1, 2012
How can I disable buttons on some rows in an unbound datagridview, or at least make it appear that it isn't enabled? The enabled property of the cell doesn't exist, and the visible property is read only.
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Mar 9, 2010
So i'm working on this web application which is pizza order application form in which user selects size of the pizza and toppings.I've 4 sizes pizza but I can check more than one radio buttons at a time.and the other problem is that I've like 6 choices of toppings which worth 99C each. But If I select more than one checkbox, then total adds up 99C only once.[code]
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Oct 29, 2010
I have a toolStrip with several buttons. Each button opens a new form.
With some forms I disable just its button, but with others I disable three buttons.
After I close any form, I re-enable the button.
As it isn't always the same amount of buttons, I'd like to do a routine to re-enable the buttons after I close any form. I've tried with:
[Code]...
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Jan 14, 2010
My process is as follows:I access a database table to determine what questions to ask (20-100 questions).Each question is display along with, possibly, a "done" button.My code to do this is as follows:
If datareader("Who_Second").ToString = lbl_Your_Position.Text Then
Dim b1 As New ImageButton
b1.ID = "btn_second" & datareader("QCC_Q_ID").ToString
[code]....
What I need to do for each button is strip out what the "QCC_Q_ID" is for that button and insert information into another table of the DB.My partial code for this is as follows:
Sub btn_done_clicked(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs)
Dim MyDate As Date
Dim QCC_Q_ID, Position As String
[code]....
Two problems:1. My sub is never being called, so I can only assume that my "addhandler" is not working.2. QCC_Q_ID = e.ToString.... That doesn't seem right - is it? What I need to do is get the name of the button (btn_second13) and get just the number out of that (13). Is there any easier way to keep track of that ID?
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Aug 23, 2009
I'm having trouble removing buttons from a groupbox that were created via a thread. I can read the elements name, but cant seem to remove it.[code]...
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Feb 16, 2012
How do I disable buttons while there are less than 2 items in a listbox? I can't figure out how to do it. I'm a newbie in Visual Basic(programming at all)
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Jun 2, 2012
I'm a new programmer to vb.net, so apologise for what is likely to be ignorance.
I'm building a simple gui for a database interface, with many parent and child items within it. Upon a form I create buttons depending on how many items (parents/children). I've got the creation of the buttons thus:
For RowNumber As Integer = 0 To NoOfRows
Dim Buttoni As New Button
Buttoni.Location = New Point(LocationX, LocationY)
[Code]....
But I'm struggling with a way to delete the buttons to make way for a new set to replace them... I can delete a single one upon its click, but I'd like to delete all of the buttons that have been created in this way before re-creating them.
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Aug 15, 2011
how can i select these buttons in the program ?I can change the propertiies inside the click event because i know wicht button i pressed thru the sender of the event but i don't find a way to adress the other buttons outside the event.
please note that i am a beginner in programming in vb.net
For i 0To 1
For y = 5
[code]....
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Jun 27, 2009
Can you temporarily disable a radio buttons CheckChanged Sub? I have a set of radio buttons in a groupbox and when the user selects one, I need to check if it's a valid selection. If not, I need to reset it to the previous button that was pressed. Below is an example of my
Private Sub rbGame_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rbGame.CheckedChanged
t_indextype = m_indextype
m_indextype = "1"
[CODE]..................
In the above example, ResetButtons() changes the checked value of the radiio button selected to false and changes the checked value of the previous radio button to true. The problem is that when radio button rbGame gets changed, it causes the CheckChanged sub above to run again from the top. Is there a way to temporarily disable it from running while I make my changes and then re-enable it?
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Sep 5, 2009
I have a group of radio buttons inside a groupbox and I don't want the user to be able to move the focus away from a button by using the arrow keys. I've tried the following keydown event, but it never gets fired:
Private Sub rbCode_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles rbCode.KeyDown
' If an arrow key is pressed, maintain focus on this radio button
If e.KeyCode = Keys.Left Or e.KeyCode = Keys.Right Or e.KeyCode = Keys.Up Or e.KeyCode = Keys.Down Then
[code]....
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Jul 31, 2011
I am currently developing a simple menu application that has a control array of buttons and I am having a hard time with re-sizing the form and centering the buttons. These buttons are created at compile time (with parameters from an INI file) and my current centering algorithm seems to slightly set them to the right. I am using the "button.location = new Point(...,...)" method but after reading about this it says the values locate the buttons left upper corner rather than center, thus accounting for the slight offset to the right.
My two questions are this:
How can I perfectly center these buttons at compile time? I have tried accounting for the difference by subtracting half of the button's width but the button width and point properties seem to be incompatible and the button gets heavily offset.
And... my other goal for re-sizing the menu is to have the buttons perfectly expand and contract when being re-sized. It seems as though anchoring is ineffective when the buttons are created dynamically so I have been forced to write ratio algorithms... Is there a way to get anchoring to work?
Here's what I have in the load up :
MyControlArray(i).Location = New Point(CInt(((Width - ButtonWidth) / 2) +_
(ButtonWidth / 2)), CInt((Height - MyControlArray(i).Height) / 2))
I have already tried:
New Point(CInt(((Width - ButtonWidth) / 2)), CInt((Height - MyControlArray(i).Height)_
/ 2))
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Jun 22, 2009
i created some buttons to start a remote connection with some server.Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click Dim RetVal
RetVal = Shell("mstsc.exe /v 10.100.6.11")End Sub But now the remote connection starts minimized, how can i fix this so it starts maximized,i dont want to use /span because some people use 2 monitors and don't want it "widescreen"
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Jul 2, 2009
For example, when I click on the btn(5) I would like the textbox1 says: "5"
[Code]....
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Apr 1, 2011
how i can disable completely mouse and keyboard input on a WebBrowser object using Visual Basic 2008 i have this code:
Dim CarImp
As
New DirectoryInfo("C:VSEPRN")
If CarImp.Exists =
[code]....
i generate a small HTML file on a hard disk, put the AxWebBrowser2 object navigate to the file, all works fine, but i need to diable all user interface on that object. If the user clicks on object, the page reloads completely and i need to avoid that behavior.
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Dec 8, 2010
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click[code]...
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Jan 25, 2012
I've got this code
ToolStripTextBox1.ProgrammeTemplatesToolStripMenuItem.DropDownItems.Add(btn)
ToolStripTextBox1.TS.Visible = True
How to save this button so that when the program runs again, it's still there?
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Dec 19, 2010
I want to place a few buttons on my form. The number is unknown at design time. Actually each button will represent an item entered in combo box. So if user adds an item, a button on the form should be added by the code.
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Dec 15, 2011
i need to load all buttons(200) text in my vb.net windows form at run time from my database table column.
for single button its like
button1.text = database value
but i want
For i = 1 to 200
[Code].....
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Mar 29, 2010
why the buttons in the development and in the runtime look different?
Top is how the button looks like at runtime. Bottom is how the button looks like at development.
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Dec 23, 2010
I'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.
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Jun 15, 2009
I 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
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Oct 28, 2009
I'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]...
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Jul 16, 2009
global variable can be created during runtime?
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Jun 3, 2011
i 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).
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Jan 18, 2010
I 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]....
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Jan 16, 2012
Been 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]
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