Ive got a datagridview, which the user can put in to 'edit' mode by double clicking. If they then make changes but click to another row, I want to msg asking if they are sure they want to discard then changes. If they say No I want to stop the selection change from being made.
Private Sub DataGridView1_SelectionChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGridView1.SelectionChanged
If edit = True Then
on my Form I have a DataViewGrid and some textboxes with a save button (they are filled with additional data of the selected row).Save is disabled first, when I change something in the textboxes the save button is enabled.When the user changes a gow in the grid, I want to ask before changing the grid row, if he wants to save (if the button is enabled).I am using RowEnter but this is too late, then the selected row already changed (and my textboxes already got new data)...What event can I use to ask if I should save stuff before the user changes a row?Something like BeforeRowChanging with a chance to cancel changing the row?
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.
i have 4-5 forms and contains grid and some coding is done on selectionchanged event of grid. eveything is working fine but one of the form has this problem.as soon as i call the form form1.show and it fires the selectionchanged of grid before even it fire form load event. i'm not sure why? i try to debugged it step by step, as soon as form.show command is done the control goes to selectionchage event of grid and at the same time it is working fine on rest of the forms.
I have a Data grid with DatagridComboBoxColumn , and i want to Fire Event SelectionChanged when user Select any thing From the ComboBox , Do Some operations
vb.net Private Sub DataGridView1_CellValueChanged _ (ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _ Handles DataGridView1.CellValueChanged
I have a datagrid that has a checkbox column and it all works fine and dandy except I'm not sure what the proper way to handle this situation is. When I check one or more checkboxes then loop through to find which ones were checked if I didnt move the selected cell before clicking go it will not detect the last checkbox checked. However if I change selection it does. Problem is I dont want to change selection, I tried unsBelow is the code I'm using to find which checkbox is checked. This will msgbox me the text in the second column of all the rows checked except the last one I checked
I had created 3 datagridviews dynamically. In each dtatgridview a single cell is selected by default. I want to avoid this default selection how can I do this?In a single form 3 cursors.....Not active but looks very boring.
I have a form with a DataGridView and ComboBox, both of which are populated with data from an Excel spreadsheet, the source is unbound. My problem is in repopulating the DataGridView with data from another worksheet in the same Excel file when the user selects the corresponding value from the ComboBox. For example if they were to select January from the ComboBox then the DataGridView would load in and display the data contained on say Sheet2, selecting February would load Sheet 3 and so on. I am running Visual Studio 2008.
I'm pretty new to VB.Net programming, but have already been able to figure out many things using this forum, but also via the many other forums on the internet.I'm currently stuck with a question though regarding getting the clicked value in a datagridview comboboxcolumn.When I use _Selected IndexChanged and then check the current cells value, what I get is the value before I clicked the new one in the comboboxcolumn.When I use _CellEditFinished, I can get the new value, but only after I selected another cell, or changed focus to another object.How do I get the new value from a DataGridViews ComboBoxColumn the moment I clicked it in the pulldown menu from the ComboBoxColumn?
I changed my Username on my computer from i.e. "xxxxxx x xxxxx" to "Dennis"
VB 2008 during a compile gave me the following error: Error reading icon 'C:Usersxxxxxx x xxxxxAppDataRoamingMicrosoftVBExpress9.0VSProjectApplication.ico' -- The system cannot find the path specified.
The file "VSProjectApplication.ico" is in 'C:UsersDennisAppDataRoamingMicrosoftVBExpress9.0'
Somewhere in the VB2008 "configuration" files I believe that I need to manually change the old path to the new path.
I found the old path in the ".suo" file. The ".suo" file is not a text file. How can I edit the .suo file, save it so that it will work?
I have a datagridview that has three columns. All three fields are unique fields in the Access table that the datagridview reads from in order to make sure that an entire record is unique. I have a form where a user can add a new record. Upon opening the form, two of the three fields have data automatically entered, leaving one field for the user to enter information. The field that the user needs to enter information in is put in edit mode. The problem I am having is that I have a Cancel button if the user does not want to enter a new record and wants to close the form. I tried using the following line of code to remove the current record that has information in two of the three fields before closing the form:
In VB.NET 2008 I've two forms 1 & 2 containing two datagridviews connected to two data source 'ACCESS 2007 tables' Now I want to select multiple rows from one datagridview (form1) & transferring these to another empty datagridview (form2) with a button_click.
I've created a Datagridview bound to a Datatable. This Datatable is updated by a event to reflect statistical information as it changes (sub second resolution). I have a checkbox to determine if a row is available for other functions and can be toggled on and off normally if my eventhandler is not receiving my updates.
If my bound Datatable is changed, the checkbox returns to its previous state as soon as the cursor or focus leaves the checkbox glyph (not the cell).
How do I toggle the checkboxes without them reseting without disconnecting my eventhandler?
I need to "refresh" a DataGridView, bound to a database table, on a form within a TabControl The DataGridView is loaded correctly on strartup... But if the data in the DataBase change, How do I refresh it to reflect new records or updates?
this is what I am doing in code, after looking for some examples on the web:
I've been searching all over and I'm either not searching for the right words or it just doesn't exist. I've got a datagridview (dgv) on a form with some textboxes that are databound to different fields in the dgv's datasource. I want to capture an event if someone changes a value through one of the databound controls so I can mark the row as modified. I've been going through the dgv events trying to capture something, but I can't find anything that fires when a value is changed. The dgv is read only, so the values can only be changed through the databount textboxes.
How to I know if someone changes a value in the dgv? Is there a setting in the dgv that will tell me if a row is modified?
I have an unbound Datagridview which gets its data from an array from an Excel sheet. I give the user the chance to amend this data in a Datagridview. I then need to know if the user has changed this data before processing it further. I have in vain, tried to use IsCurrentRowDirty, IsCurrentCellDirty, looping through DGV matrix etc. It seems that because the DGV is not bound to a dataset then the normal properties like HasChanged and the 2 above don't seem to work. Here is my attempted code which is not working:
Dim DGRow As DataGridViewRow Dim DGCell As DataGridViewCell For Each DGRow In DGV_ReviewDetails.Rows
I made an account manager where i can store all my accounts and I want it more protected, how can I changed the displayed text in my "colPassword" in datagridview? Just like in textbox the PasswordChar, please give me sample code :)
i'm using vb 2010 to write a program for my school. i'm asking the teachers to key in their student's curricular activities into a program through datagridview. i manage to restrict the code they enter by validating it in the datagridview cellvaluechanged event handler. my idea is as follow.
1. teacher enters code in the datagrid.
2. vb check the the value and if it is in the database then update. if not then give a preset value "-1" as no record.
these are my code...
Private Sub DataGridView1_CellValueChanged(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged Dim Cn As New ADODB.Connection
[Code]....
my problem is... is there a way so that when the teacher enters an INVALID CODE and leaves the cell by mean of pressing "enter" or by clicking at other cells, the cell edited before is remain focused and the value before is revert back?
Now what I want to do is capture the event every time a value is changed in the combo box drop down (selectedindexchanged). When the index is changed, I want to grab the row number, and then I will grab the value of the now selectedindex and do some database updates with it.
I currently have tried to put together an event grabber when the combo box is changed, however it doesn't work correctly.
My code is:
Private Sub dgvRooms_EditingControlShowing(ByVal sender As Object, _ ByVal e As DataGridViewEditingControlShowingEventArgs) _ Handles dgvRooms.EditingControlShowing
[Code].....
I put in a message box to check that it was capturing the event. I then noticed that it captures it more than once when you change the value.
The problem is when I go to click the down arrow on the row, the event is run once (message box show). Then you have to click a second time (event is run again with message box) before it shows the drop down list.
Then when you click on the value you wish in the drop down box it shows the message box (the only time I want it to run).
Then when I leave that row, it shows the message box two more times.
Effectively it goes to update the data 5 times, I only want to do it once.
I can not there is a pencil editing icon when you click on a row to the far left, and it appears when you leave the row, after already clicking on your value, it then checks on row leave that the values havn't changed, hence it runs two more times.
How do I make it so it only runs once on the value being changed?
Is there a way to disable the pencil editing, but still enable the combo box column to work? (be clickable and choose an option)
I have datagridview with XSD as the binding source (i configured it with the smart tags). After build, the dgv change its columnIndex which surely result error of my code.
For example
columnIndex(0) = idEmployee (dataGridViewTextBoxColumn) columnIndex(1) = name (dataGridViewTextBoxColumn) columnIndex(2) = status (dataGridViewCheckBoxColumn) suddenly, the columnIndex(2) moved into columnIndex(0)
I am using oracle database and i already created a connection and retrieved data from my oracle DB to Datagridview using oledb commands,now my major challenge which has gotten me sick is to update any changes made in the datagridview to the oracle database. I tried using sqlcommandbuilder but failed. This code is what i used to retrieved the data from oracle and place it into the datagridview.
These are my declarations i made at the beginning of the form:
Private myDA As OleDbDataAdapter Private myDataSet As DataSet
These are the codes inside the search button to load the retrieved data from oracle into the datagridview
Public con As OleDbConnection = New OleDbConnection("Provider=MSDAORA.1;User ID=SYSTEM; Password=simon; database=project")
I'm using a DGV and i'm looking for the best way to update the database whenever a new row is created OR whenever any datagrid view cell changes.
The following code works fine for new rows and my question is how can i adapt it to include ANY other changed cells of any other rows being or not new rows.
If Me.PECASDataGridView.CurrentRow.IsNewRow = True Then Me.Validate() Me.PECASBindingSource.EndEdit()
I have a WinForms app with a datagridview and a bindingsource. I want the user to confirm changes before I save them to the database. don't want to pop up the confirmation dialog unless I know the user has made changes. So I need a way to check if changes have been made.
i want to do this: when user click save button, the form must be check first..
if user did not insert the required data, user are not allow to save form..
the code:
Private Sub AssetMasterBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AssetMasterBindingNavigatorSaveItem.Click
