I have a split container in my vb program that has 2 buttons right on top of each other in container 1. In container 2 I have a datagridview. The buttons are to mark a row as a blanket order that is in the DGV, so I'm only wanting the button enabled if the user is in the DGV. I was using another way of doing this by using the backgroundcolors of the rows like this :
[Code]...
Private Function StoreCouponCode() As String
Dim con As New SqlConnection(ConfigurationManager.ConnectionStrings("DBConnectionString").ConnectionString)
[Code]....
When the user clicks on the CmdGetCoupon it takes some time to redirect..so the user clicks on the CmdGetCoupon more than once,which results in multiple coupon generation from a single user account.
I want to display a message "Please Wait While Your Coupon Is Being Generated" and disable the CmdGetCoupon so that the user cannot click multiple times
I've used (buttonName).enabled = false to disable buttons when the user clicks on them but I don't like how the button becomes faded.
Is it possible to disable a button without changing the look of the button?
Take the following fundamental code:
Private Sub btnStop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStop.Click
btnStop.Enabled = False
'Lengthy code procedure
btnStop.Enabled = True
End Sub
I've just notice that when I click on a button, and try to disable it in order to avoid the user clicking on it several times during process (or disable the entire form for that matter), the application somehow records the subsequent clicks and processes them after the button has been re-enabled. But that's not the behavior that I want at all. I just want to disable any user interaction with the button (or the form perhaps) until processing of the Button_Click event is completed. How can I do this?
im wondering if it is possible at all to bisable a button after it being clicked because i have no idea on where to start on doing this. I only know how to get it to disable for the one session but when the program is run again it is enabled again. Is there any way to just keep it disabled because it nly ever needs to be clicked once.
View 20 RepliesI am trying to work on an application that disables the close button (X) on the upper right hand corner of a window. In order to do that I need to use calls to API methods like GetSystemMenu, EnableMenuItem and RemoveMenu. I can figure out how these methods work but there are certain parameters that these methods have whose values that need to be passed to them as argument is unknown to me. How can I know them.
E.G.- for EnableMenuItem, the parameters are- hMenu (handle to the menu), uIDEnableItem (The menu item to be enabled, disabled, or grayed), uEnable (This parameter must be a combination of at least two of the following:
MF_BYCOMMAND or MF_BYPOSITION
MF_ENABLED, MF_DISABLED, or MF_GRAYED)
Now when I call this method from my application I supply the current window handle as the first argument, the item no. to be disabled/enabled as the second argument but I CAN'T UNDERSTAND WHAT TO SEND AS THE THIRD ARGUMENT. What exactly are the possible values for those parameters- MF_BYCOMMAND or MF_DISABLED. I checked certain examples where they are supplying hexadecimal values like &HF060, &H1, 0x400, 0x1000, 0x2 etc. or integer values like 1024, 2 etc. But how would I know what exactly these values are and when to use which value. The same problem arises in case of calling RemoveMenu method. If you know about any chart or tutorial that lists the values of these parameters
im trying to disable a button until anything has been entered into two text boxes simultaneously.
So far i have tried:
If String.IsNullOrEmpty(TextBox1.Text & TextBox2.Text) Then
Button1.Enabled = False
Else
Button1.Enabled = True
End If
However it doesnt work simultaneously, the button will become enabled if i enter anything into either textbox, i cant have any of them left blank.
How do I disable a submit button until all controls are filled? Is there a way to do this without adding conditional statements to each controls?
View 1 RepliesI am trying to work on an application that disables the close button (X) on the upper right hand corner of a window. In order to do that I need to use calls to API methods like GetSystemMenu, EnableMenuItem and RemoveMenu. I can figure out how these methods work but there are certain parameters that these methods have whose values that need to be passed to them as argument is unknown to me. How can I know them.
E.G.- for EnableMenuItem, the parameters are- hMenu (handle to the menu), uIDEnableItem (The menu item to be enabled, disabled, or grayed), uEnable (This parameter must be a combination of at least two of the following: MF_BYCOMMAND or MF_BYPOSITION MF_ENABLED, MF_DISABLED, or MF_GRAYED)Now when I call this method from my application I supply the current window handle as the first argument, the item no. to be disabled/enabled as the second argument but I CAN'T UNDERSTAND WHAT TO SEND AS THE THIRD ARGUMENT. What exactly are the possible values for those parameters- MF_BYCOMMAND or MF_DISABLED. I checked certain examples where they are supplying hexadecimal values like &HF060, &H1, 0x400, 0x1000, 0x2 etc. or integer values like 1024, 2 etc. But how would I know what exactly these values are and when to use which value.The same problem arises in case of calling RemoveMenu method.
In the project I am doing at the moment I want to disable the Exit ( X ) buttons in the top right corner of all my forms. So I found out this code which I�m using and is working fine:
Protected Overrides ReadOnly Property CreateParams() As CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
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I have 2 DatagridViewChecKboxColumn. What I want to happen is that a(Submit)button will be disabled until the checkbox2 will be checked. How will I do this if my checkboxes are DataGridViewCheckboxColumn? What loop will I do,because there's a possibility that I'll be checking the last checkbox?
I found this, but it's not working.
If (DataGridView1.Columns(e.ColumnIndex).Name = "Child") = True Then
btnConso.Enabled = True
ElseIf (DataGridView1.Columns(e.ColumnIndex).Name = "Child") = False Then
[Code]....
Is it possible to disable the "sort function" in datagridview that happens when pressing the header?
I would like display some data that you cant order by clicking on the columheader. Can you lock the headers somehow?
Is it possible to set focus on the keydown event so after the button control, sets the focus into the keydown? although says often control can have focus,.Putting a button and a keydown event on a form...
View 2 RepliesI need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases.After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
On page load:
If Me.Page.IsPostBack Then
'lblDetails.Text = "disabled"
[code]....
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
Code:
<script type="text/javascript">
disableSubmit(frm) {
[code].....
I was looking for quick assistance with disabling the write button based on wrong user input. Program works great just feel like it needs a little more.
[Code]...
I don't like validating through the TextChanged event either as I believe that to be the cause of some issues. Doesn't the Textchanged event validate on each time a letter is typed?
I need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases. After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
[code]...
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
[code]...
But although this works, it does not execute my VB code in the code behind page so I am a little confused where to go here.
I have a sequence of ASP.NET web forms, each holding a placeHolder control and 3 buttons: "Previous Page", "Quit" and "Save Answers" (in this order). On page-load event, the placeHolder is programmatically filled with a list of questions an a series of radioButtonList's for answering, and the focus is set on the "Save Answers" button using btnSaveAnswers.focus()
When the page loads, the focus is set on the "Save Answers" button as expected. The problem is that when i start clicking in radio buttons to answer questions, the focus shift on the "Previous Page" button (maybe because its the first in the row?) but i want it to stay on "Save Answers". So ho could i prevent shifting of the focus?Enclosing the 3 buttons on a panel and setting the defaultButton="Save Answers" property of the panel did not work. The tabIndex of the 3 buttons are 3, 1 and 0 respectively
My application is an Touch Screen HMI to operate some machinery using VB.net 2008. I am trying to get a button to activate code while touched then other code when released. I have experienced HMI's where when a button is pressed then slide finger out of focus the button stays down. This is what I am looking for.
View 5 RepliesI created a toolstrip with some buttons. I have a form with some objects (like textbox,checkbox,button etc.) and when i get the focus on last item,when i finish to compile i need with tab on keyboard to get focus on save button on the toolstrip.
View 1 RepliesThe scenario is two forms. Form A has a button. You click on the button to open form b. Form b opens. Close form b. The focus returns to the button on form a. When the focus returns to form A, I'm trying to put the focus on another object like a text box and it won't go there. It keeps going back to the button. If I try to set the focus to a text box, the focus event of the text box is triggered but then it still continues to go back to the button. If I disable the button then I can prevent the focus from going back there, but then I can't use the button.
View 7 Repliesi donno how to set focus point always to the new row in datagridview in the beginning??
View 6 Repliesif I click on the SearchSearch Textbox, I want the highlight to be on the Search Button and not on save without using AcceptButton or any TabIndexing so if whenever i press ENTER and the 'I' cursor is on the SearchSearch Textbox, the search button will be triggered.
Javascript:
function getFocus(textboxName,e) {
document.getElementByIdSearchSearch(textboxName).focus();
}
[Code]....
before i made the Search button on focus whenrver i click on the Search textbox. so what happens is everytime i click on the textbox it instantly focuses on the Search button making me unable to type anything. I tried also making a Panel for the Search textbox and button having a DefaultButton but it doesnt highlights the Search Button
I have a form that has mutiple buttons and textboxes. When the form is loaded, I want to set focus to a button as well as a textbox so when the person presses the Enter key the actions within that button must be processed.
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I am working on a timing program and have a start button programmed to clear all the variables and start timing events. I have another button programed to stop the timing and show the data. The problem is that when I place the cursor on the start button and press the left mouse button it workes fine, but when I move the cursor to the stop button and press the left mouse button the start buttons 3D showes that it was pressed? Since the start button clears all of the data there is nothing to display in the text boxes. If I press the left mouse button again the stop buttons 3D shows that it was pressed. Have looked everywhere for a hint as to what to do but have found nothing yet.
View 12 RepliesI can enter data into the grid and have an working update command when the row leave event occursProblem comes when I click into the other datagridview the previous cell in the previous datagridview highlights and the cell in the datagrid view I click on highlights I can edit data in the other datagrid view but as long as that highlight is on in theprevious datagridview I cannot shut down my program with the close button. I must first go back to that other datagrid view and click on it once to lose that highlighted cell and then close. I don't get any errors during this time just can't shut down program.
View 7 RepliesIs there a way to use wheel mouse and scroll vertical bar without actually get focus on datagridview in vb.net?
View 1 RepliesDataGridView has 3 columns asSno----name----marksWhile entering data, if sno column is empty and user press Enter or Tab then
View 3 RepliesI need to move and set focus on a newly added datagridview row. My grid is sorted is descending order and will have the new row at the top. My code is currently highlighting the new row in blue, but focus will be on the bottom row, on the first cell.
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I am setting my Winforms Button control properties to appear as a hyperlink would on a web page. I've formatted everything fine, except the border in the FlatAppearance object. I have code to act as pseudo-CSS (FormBackColor is a string constant.):
b.FlatStyle = FlatStyle.Flat
b.BackColor = ColorTranslator.FromHtml(FormBackColor)
b.ForeColor = Color.Blue
[code]....
The code removes the border from the flat Button control except on MouseOver, where I add a 1 pixel border. On MouseLeave, I remove the border. This is to show some visual feedback. This works fine when the button does not have the focus. However, if I click on the button, giving the button focus, mousing out and over again now shows a greater than 1 pixel border around the button. I'm imagining it's combining my button's explicit 1 pixel border with the traditional "Winform Button has the focus, so add a border" border around the Button.How can I disable/remove the "Winform Button has the focus, so add a border" border? Or, should I just do a check in ButtonMouseOver to check if the control has the focus, being a condition of adding the border, and just be done with it?
I am using ASP.NET 2.0 and VB.NET
On top of my page I have a button called btnViewRecords. When the User click on the button I want to set focus to another button or label further down on the same page. How can this be done.
This code does not work for me..............
btnTheRecords.Focus()
or
lblHeader.Focus()
Even if my code did work, i dont want to reload the page every time.