How can I avoid a first chance exception here. I need to use the cancel button to jump around the remove at code. The exception is caught and the bail out goto works, it is just the first chance I'd like to get rid of.
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I am trying to code a delete button for a browsing program based on data from a txt file. I have coded the buttons to sort(ascending and descending), append to the text file, search the text file, but I can not seem to get the delete function working. I am using VB 2010, this is what I have so far:
Code:
Dim deleline As String
Dim line As String
Dim isFound As Boolean = False
sr4 = IO.File.OpenText("Students.txt")
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How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
View 7 RepliesI have a form to register new users for my site and their are required field validators on the page.
I want to include a cancel button that redirects the form to the main page but unless the required field validatiors are satisfied it will not run the code when the cancel button is hit.
How can I have the code for the cancel button run even if the form is not fully filled out?
I validate a DataGridView with the CellValidating-eventhandler.That works fine. However, I want to avoid validating when the user presses the Cancel button. In the sequence validation occurs before the event CancelButton.Clicked.
View 1 RepliesI have a javascript file that contains the function for calling the confirmation delete window, the code used is similar to the following:
function Delete()
{
confirm('Delete this user');
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how to remove the record from gridview when i click on delete button in vb.net ?
View 1 RepliesI have a BindingNavigator and combobox tied to the same BindingSource. I want to allow the user to confirm a delete after hitting the delete button of the navigator. It appears that the row gets marked for deletion after my BindingNavigatorDeleteItem_Click event handler is processed. Is there no way to cancel the delete activity from within the delete click event? If not, then it becomes necessary to store a delete flag and catch another event to RejectChanges.
I create many buttons in code like :
Public Sub GenereTextBox(ByVal rep As String)
Dim txt As New TextBox
Dim fnt As Font
fnt = Me.Font
txt.Location = New Drawing.Point(26 + NbreCacher * (68), txtOrdonnee)
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And I want delete some buttons create when I click on my button, but I don't how I can do, because these buttons are create in code??
I'm trying to code the delete button in my binding navigator and I keep running into errors. This is what I have:Dim msg As String = "Are you sure you want to delete the current record? " If MessageBox.Show(msg, "Confirm Delete", _ MessageBoxButtons.YesNo) = DialogResult.Yes Then _CustomersBindingSource.Remove(DataGridView1.CurrentRow)
End If
Me.TableAdapterManager.UpdateAll(Me.DatabaseDataSet1)
Even when I change it to _CustomersBindingSource.CancelEdit and I debug it, the Delete button in the binding navigator looks like it set to enabled = false, but in the properites it's set to true.Even if I add enabled = true at the top
When a user wants to delete a row in a DGV, they are asked if they are sure they want to do it.
how do I go about stopping the row from being deleted should they say no?
Private Sub RoomCodesDGV_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RoomCodesDGV.KeyDown
Select Case e.KeyCode
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I have a binding navigator in my project and it works just fine.My question is where, if at all, can I find the code that is run when the delete button on the navigator is pressed.My reason for wanting to know this is I want to be able to give the user a second chance when the delete button is pressed.I want to ask the user if they are sure that they want to delete the record by using a msgbox.If the user says yes I will delete if they say no then I do not want the record deleted.I tried putting logic in the BindingNavigator DeleteItem_Click but was not successful.
View 7 RepliesIs there any code that will delete the content of a text box on a button click.Eg,On button click clear textboxes in form1?
View 3 RepliesHow to make only one record at a time get inserted in the database table and also delete from the other table?
Once the details are filled ,I insert it in table1 as the new record and I delete the same record from table2.[code]...
What is the best way to give a warning message to the user and cancel a row delete in a datagridview? This is about as far as I have got:
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I just want a program compiled in Visual Basic 2008. which can just submit a form of only one field. the form is already uploaded to the server but i don't want to go to that url every time to do so.What I want here, just to open application and fill that field and submit. Is this possible in visual basic 2008?Also let me know how to create a button that can rapidly submit the form repeatly untill the second button named cancel is pressed.
field name of that form is "msisdn" and the action on submit button is post method and url in target is url...
Below is my code for DELETE button. What i want is if the user select the transaction from the listview and press the DELETE button it must be able to delete the transaction from listview and text file(temporary log file) which i keep all the transaction record. At the same time the list view must able show the total current balance from the deleted trnsaction.
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i am very new to VB. I am working on file operation such as show files, copy file, delete file, show current directory, rename folder, make folder. My problem right now is with delete and copy file. I have a method of delete and copy but i dont know how to pass this method on a button.
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Private Sub CMDreturngame_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CMDreturngame.Click
Dim gameID As Integer
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The above is my code. I'm trying to get it to step into the bolded code when I click on no in the messagebox, but it keeps skipping. No idea why as I've wrote another piece of code with similar coding, which works perfectly fine.
Is there a macro in the Visual Studio editor to remove all comments from a VB.NET source file?
View 2 RepliesI have the following on my interface / webform: <div id="mydiv" class="forceHeight" runat="server" />
now I have a dondition in my code behind where if a certain situation is true I need to remove the forceHeight class from this control. I know in C# you can use:
mydiv.CssClass.Replace("forceHeight", ""); I'm not so sure how you do this using VB? Intellisense doesn't offer me this option?
in windows form in button click event how to export the file in a location select by showdialog & it will be delete permanently at a same time.How can i do this!
because in .net it will produces error "IO Exception was unhandled" or "The process can not access the file because it is used by anather process." .In button click event how to export the file & delete at same time in vb.net windows application.
n windows form in button click event how to export the file in a location select byshowdialog & it will be delete permanently at a same time.How can i do this! because in .net it will produces error "IO Exception was unhandled" or "The process can not access the file because it is used by anather process." .In button click event how to export the file & delete at same time in vb.net windows application.
View 3 RepliesHow do I add a cancel button to a message box? I really need to know this because it is kinda stupid that i have a message box saying "Are you sure you want to clear everything?" and have no cancel button. Also what code do i need to make a program key where it is made so that I give a key and it works with that specific program another one will be made with a different key. I have no code for that because i have no clue where to begin (3 day trial code so it is locked would be nice to) The other problem I have is makeing the program open new windows so if i click trial then it will run for 3 days then done and with code making it run forever without the pop up again so how do I do all that?
Public Class Form1
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
RichTextBox1.Undo()
End Sub
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Heres my code so far:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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When I use form properties (Cancel button)it's work but most time this properties will not work properly. How do I this...any another method to close the form on Esc. button...
View 2 RepliesIs there a way to get the even when a user presses an OK button or cancel button? In the Windows.Forms.DialogResult.OK only assignes a value for the OK or Cancel. However how do I get the actual value pressed by the user. In other words how do I know whether the user presses the OK or Cancel button?
View 6 RepliesI want to use a FileStream and seek from the beginning of the file while moving forward in the file .01% of the file size at a time.
So I want to seek to a position in the file, read the entire line, if it matches my criteria I am done. If not, I seek ahead another .01.
C# is OK but VB.NET preferred.
I used to do it something like this in VB6...
FileOpen(1, CurrentFullPath, OpenMode.Input, OpenAccess.Read, OpenShare.Shared)
Dim FileLength As Long = LOF(1)
For x As Single = 0.99 To 0 Step -0.01
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I found This code plays a file in winamp(tested) by a user-entered string/partial file name.but dont work
vb.net
'Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Auto Function FindWindow Lib "user32" (ByVal lpClassName As
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When i run this project, only messagebox button ok appear, but button cancel do not show. i'm using visual basic express edition 2008. and this is my codding.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]...