I would like MyProcess() to fire when I click on any of several checkboxes. I could do it like this. [code]I have alot of checkboxes, and anyway, this method isn't very scalable.Is there any other way for a form (or panel maybe) to detect mouse events on child controls kind of like the way the KeyPreview property of a form allows it to detect key events of it's child controls?
View 3 RepliesI added: import microsoft.office.interop.excel and I suddenly got this error:" 'checkedchanged'is not an event of 'microsoft.office.interop.excel.checkbox'"
for each cb2 as checkbox in thechecks
addhandler cb2.checkedchanged,addressof checkpress
next
it erroreed on the cb2.checkedchanged part and this code has worked before. however once I add the import it errors. what namespace am I supposed to put it under?
I have a series of radio buttons in a Group Box on my main form. When I run the program, the first step is Sub New and the InitializeComponent() procedure.
It then immediately goes to the first radio button CheckedChanged event. This even currently contains some programming to access information from a database table. However, the program hasn't even gone through the process of opening the database and logging in. This doesn't happen until after my frmMain.Load event. However, this happens after the CheckedChanged event for some reason. So now that I have included the data requirement, I am getting errors because the reader is opening before the connection opens. I know I can set up a Try....Catch....End Try to avoid a user error, but ...I thought the form would have to load before anything about the controls happens and then since I haven't clicked anything, I am not sure why the event is triggering.
I have a DataGridView control in a .Net application that contains a checkbox column. I would like for the user to be able to edit the checkboxes. The issue that I am running into is that I cannot detect the state of the checkbox after the user checks it.
If the checkbox was originally checked, then it will return checked as soon as the DataGridViewCheckBoxCell gets focus. But, if I click on the checkbox again and unchecks it, then it still returns checked. From that point on, it will always return checked regardless of the actual state of the checkbox until it looses focus and gains it again.
Likewise, if the checkbox was originally unchecked, then when it gets focus it will return unchecked in the click event regardless of what the state of the checkbox actually is.
Here is my code.
Private Sub grdTemplates_CellContentClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles grdTemplates.CellContentClick
[Code].....
How to add this functionality a vb.net windows service ? Here is what I've added, but not getting triggered when I tried to log off or lock the pc.
[Code]...
Recently while I was playing with VS 2008(VB), I have created an application for folder sync purpose... which is working fine. Then, I have created a windows service that does the same thing and it is also working fine(from application perspective). But, I have been trying to add some additional functionality to that new service. It keeps on running as long as System is ON.
But I would like to change the functionality to... as soon as user logs off Service should STOP, and should START when user logs into that PC. I tried to find some useful info online(related to my task) and all I could come up with was to add OnSessionChange(...) method to the service. But for some reason it is not working out for me(when I've logged off or other system events such as 'system lock').
[Code]...
I am creating a user control where when a user clicks a button a popup window will show up with information. The popup window is driven by a toolStripDropDown so when it shows up it does 2 things
Does not move the other controls on the form around but displays over them That it can show the details outside the bounds of the user control itself without having to reserve the space ahead of time
Here is some code
Public Class Popup
Private treeViewHost As ToolStripControlHost
Private Shadows dropDown As ToolStripDropDown
[Code].....
Now my issue is as the form moves or resizes the Tooldropdown does not move relative. I understand that. When I try to capture the move event of the user control that event does not fire when the entire form moves. There has to be something I can capture because the controls in the container of the form move relative, what drives that? I tried wndproc but nothing fires during form move unless the form is repainted.
I need to be able to detect when an external program closes so that I can start another event within VB 2005. I have tried to do this by monitoring the processes on my computer. The problem is that this programs comes up as some weird sub-process. It has an Image Name, which is indented from the other Image Names, and it shows that the User Name is the Administrator. This is the only information you can get from the Processes tab. There is a Task Name under the Applications tab, however. I was wondering if there was some code to monitor the Applications tab instead of the Processes or if there is yet another way to do this.
View 1 RepliesI am new to vb.net and what I want to do is change the bg color if my form is active.
I have tried searches and try and fail but I cant figure it out
I typically prompt the user to save changes in the FormClosing event in MDI children. The application updater uses a Process.CloseMainWindow call to close the application if it's running before the patch update is applied.
I need to detect when the updater is closing the application and NOT prompt the user to save changes but save them automatically. I've tried using the System.Windows.Forms.CloseReason but this method isn't working for me. I capture the CloseReason in the MDI Parent FormClosing event but it's called AFTER the MDI children are told to close. I tried capturing the CloseReason (e.CloseReason) in the MDI child's FormClosing event but it registers as MDI Parent closing and a normal application exit is also going to raise this same e.CloseReason so I can't auto-save here either.
So my question is: How can I detect this Process.CloseMainWindow being used to close my application so that I can bypass all save prompts and save automatically? What is the first event called in this method of closing so that I can signal all MDI children that are open in their FormClosing event to just save?
Basically, I have a program that uses up one Monitor (With maximize/minimize/etc options), and I'm going to develop another window that by default, you'll have to swap to. But, if there are two or more monitors detected, throw the 2nd form on the 2nd monitor.
I have found a way to detect multiple monitors (Using the SystemInformation Class to return the monitor count), but it's placing the form on the other monitor that's the problem.
I need to set a variable upon the user scrolling to the end of the text on the textbox ("Scroll to end to accept terms") type thing but I can't seem to find how to get the value.
View 2 RepliesI'm new to VB 2010 but have be using VB6 for many years.I'm currently stuck trying to store the state of open MDI childs at the moment the MDI parent is closed. Clicking the parent upper right close button appears to close all open MDI childs before running the parent 'Closing' or 'Disposed' events.I am therefore unable to detect which MDI childs are open and cannot restore them next time the application is run.Is there any other event for the MDI parent I can detect the start of the closing process before the children are closed?
View 2 RepliesI want my panels to be visible when the radio button is check and when its unchecked it would hide.
Setup:
5 panels
5 radio button
radio button1 shows panel1 if checked Each radio button is set to show each panel and hide each one if its checked or not. Ex:
Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
If RadioButton1.Checked = True Then
Panel1.Visible = True
[code].....
When my form loads it shows panel1 because radiobutton one is check. But when i select another radio button panel one doesnt hide. Also when i did it to the other panels such as 2,3,4,5 it does hide and show when the checked state has changed.
I can't understand one thing : whenever I write the code for the Changed event of a check box , I simply double click on it and add the lines I wish. However,sometimes the event that is created is the CheckedChanged while for others , the CheckStateChanged .Moreover , the 1st ByVal variable is different :
Quote:
Private Sub MyCheckBoxAAA_CheckStateChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyCheckBoxAAA.CheckStateChanged[code]......
Why is this happening ? Also , some times , the sender is not declared as System.Object but as Object .The only thing I have mentioned is that the first seems to happen on lonely controls while the second seems to happen on controls that are part of a control array
I've got a series of textboxes that are bound to a dataset. I've got them disabled and will be hiding them. Then I have a series of check boxes related to each textbox. The user clicks the check box and I change the value of the databound textbox. Nice and easy way to bind check boxes to DB fields. Any way to create these relationships at runtime - basically creating the events that I'm hardcoding right here.
Private Sub IntprtLead_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles IntprtLead.TextChanged _
, IntprtCheck.TextChanged _
, IntprtCons.TextChanged _
, IntprtSimul.TextChanged
Dim strValue As String = TryCast(sender, TextBox).Text
[Code] .....
I know I can loop through the controls on the form and find these "named" objects easily enough. Is it possible to have more "generic" event code and then create the handles relationships at runtime?
how to auto disable asp.net checkbox1 on page_load event ?
View 2 Repliesmy Question is that if i ./ tick the Checkbox in datagridview the datagridview Column (4) value show in textbox if user click multiple tick in datagridview , the datagridview column(4) value add in textbox
For a = 0 To DataGridView1.Rows.Count - 1
If DataGridView1.Rows(a).Cells("checkbox").Value = True Then
TextBox8.Text += DataGridView1.Rows(a).Cells(4).Value
End If
Next
Im trying to display a value in a textbox when a checkbox is checked. My amount displays but not until I hit the calculate button, and I need it to display as soon as it is checked.
Option Explicit On
Option Strict On
Option Infer Off
[code].....
how do i make an event for only one checkbox in the checked list box ie there are 3 items
item A
item B < this one needs to have the event...
item C
I am using a column with check box to be able to select my data row from a GridView. But The OnCheckChanged event won't fire. I have tried reading articles to make it work and copy code exactly and it just won't fire. I am using vb.net and asp.net
<asp:GridView ID="locationDetailGrid" runat="server">
<Columns>
<asp:TemplateField>
[code]....
I have field NAME nvarchar(5),Checkval bit in sqlsever. I want to bind already to Datagriview in vb2005. When I check filed checkval. It will to do something that I need. I don't want to use event cellmouseclick or cellvaluechanged because it didn't react when we click. Which event that do transaction when we click check.
View 2 RepliesI have a datagridview on my windows form bound to field "STATUS" in SQL database with the default value of 0.What i want to acheive is that for each row in the datagridview, if user clicks the checkbox column only it should display a message " LOCK THE ROW?". If user chooses yes then the entire row should become readonly including the checkbox check "Greyed out" or disabled for that particular row and update value to 1 in the database field.I created checkbox by:
'on form Load_Event
Dim colCheckbox As New DataGridViewCheckBoxColumn()
colCheckbox.AutoSizeMode =DataGridViewAutoSizeColumnMode.ColumnHeader
[code].....
I have a form with 2 datagridviews on it, each connected to to table in a database: datagridview1 and datagridview2.Datagridview1 has a column called names and a column called recievers.Datagridview2 has a column called senders and a checkbox column in it.
The user will first select a row in datagridview1 and then click a check box in datagridview2.What i want to do is when the user clicks a check box in datagridview2, i want it to copy the value in the "names" column of the same row, to the receivers column of the selected row in datagridview1.
It looks like there is a bug in the DateTimePicker control, because I don't find any event specific for the changing the check state of the checkbox, only the ValueChanged event seems available. So that event should trigger every time the date in a dtp is changed manualy, or by choosing a date from the calender or when the checkbox in the dtp is checked or unchecked by clicking on it, the event ValueChanged should be triggered. But it doesn't do that all the time.
[Code]...
I'm trying to reset a form after a game has been played. I used checkboxes to indicate when the user picked a particular line item to update and then flagged the checkbox as checked and disabled.Once all the checkboxes have been checked, the game is over and I want to show a dialog (msgbox) that will allow the user to start a new game or exit the app. To reset the form, I was changing all the checkstates back to unchecked (along with resetting other variables), but the checkchanged events are being triggered and I end up in a loop.Is there a way to change the checkstate without triggering the event?[code]....
View 2 RepliesI'm facing a strange problem in my dgv, I have the dgv bounded to a datatable, now I had to add a new column to let the user checks the rows that he/she want to export to a text file. I had the checkbox column, but when I run the application I can't check any row, I try to add in the click event of the dgv to manually check the column but it still not works...
My
VB
da.SelectCommand = com_pfda.Fill(ds, "table_1")dgv_dados_obra.DataSource = ds.Tables("table_1")
Dim dgvColunaCheck As New DataGridViewCheckBoxColumnWith dgvColunaCheck
[Code] .....
The code in the click event, because the normal click in the checkbox doesn't worked:
VB If e.ColumnIndex = 7 Then
If dgv_dados_obra.Item(7, e.RowIndex).Value = 0 Then
dgv_dados_obra.Item(7, e.RowIndex).Selected = True
[Code] .....
I don't know why this doesn't work...
I have a secondForm that determines whether a checkbox.checked = true/false and I want the firstForm to verify whether the secondForms checkbox.checked = true/false in a function
View 1 RepliesI'm reading in a RTF file that I want to search by either using WholeWord or MatchCase search options.
atm I have this:
If (chkWhole.Checked = False) And (chkMatch.Checked = False) Then
'ERROR - MUST SELECT A SEARCH OPTION
[code].....
Ok im using an image as checkbox. so when i click the label next to it it will change from Uncheck image to Check image...
Ive tried:
If checkInj.Image = My.Resources.unchecked Then
checkInj.Image = My.Resources.checked
Else
[Code].....