Prevent A Datagridview Cell From Getting Focus?

Jan 3, 2010

vs 2005 sql 2005 developer/I have a datagridview with 4 columns .I want the user to be able to use the arrow keys to move through the rows and just two of the columns.I want the other two rows to behave like a label that cannot get the focus. Nor be selected.I have been messing arround with the "cell enter" event but the language wont let me set the selected cell from within that routine.

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Make DataGridView TextBox Cell A ComboBox Cell When It Has Focus

Dec 23, 2011

I have a DataGridView with several columns. One column is a TextBox column named "Status". This column can only show one of three values: 'Final', 'Ready', or 'No Reportable'. I want to have some code that would turn the TextBox cell into a ComboBox cell when the user left-clicks on the cell to allow the user to choose one of these three options. When the user clicks elsewhere or the cell loses focus I want the cell to change back to a TextBox cell.

Here is what I have so far, but the code throws an exception indicated below Plus, I don't think the code would remove the combobox when the cell loses focus.

Exception: "Provided cell does not belong to this DataGridView control."

Private Sub dgvCalculatedResults_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles dgvCalculatedResults.MouseDown
Dim ht As DataGridView.HitTestInfo = Me.dgvCalculatedResults.HitTest(e.X, e.Y)


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Prevent A Datagridview From Loosing Focus?

Jan 11, 2010

I have a datagridview. If the user adds a new row, and then clicks away from the grid. How can i stop them from doing this?

I want them to finish the row add first or cancel it. I want to then update the table adapter in the grid's leave event.

If the row validation fails, i want to display a message and re-focus to the cell in question.

The first problem i am running into is that the focus continues to go to the control that the user clicked on to move away from the grid.

How do i cancel that event?

As an example, if the grid is on a tab page and the user clicks on another tab page, i want to prevent that page from displaying if there is an error on the row that is being added to the grid.

I was hopeing for a cancel option in the lost focus event of the grid.

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VS 2008 Set Focus (new Currrent Cell) Setting Focus On Specific Cell In My Datagridview1

Nov 7, 2009

I am having problem setting focus on specific cell in my Datagridview1 . On Form1 when clicking on cell 3 in any row, I am callig a Dialog1. However, when done working with it, and closing the Dialog1, the focus returns to cell 3 in my Datagridview1 . I like to set the focus on the next cell(4) making it the current cell.

I have tryed :

DataGridView1.SelectionMode = DataGridViewSelectionMode.CellSelect
DataGridView1.CurrentCell = DataGridView1.Item(4, e.RowIndex)

DataGridView1.CurrentCell = DataGridView1.CurrentRow.Cells(4)

And few other things, I am always getting this exception: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.

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Prevent Moving From A Cell In Datagridview That Has No Data?

Aug 3, 2011

I am updating my last post so hopefully someone will help. I have following code that will move a cell to the next column when hitting the enter key while doing an edit. It will even check the row at the last cell to validate data is present.

However, if there is no data in a cell and I press enter, the focus moves to the next line like it normally does. I need to prevent the user from moving or clicking on any cell until the cell they are on has data in it. Here is the coe I have used[code]...

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Set Focus In A Specific Cell Of A Datagridview

Oct 22, 2009

I am using a datagridview as an input device. I am using a subroutine to check for errors. When an error is found is there a way to set the focus to the specific cell in the datagridview where the erro has occurred?

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DataGridView - Focus On Cell That Was Right Clicked

Mar 26, 2010

I have a datagridview that I have put a ContextMenuStrip1 on. I would like it to remove a row in the datagridview when the row is right clicked on and they click on "delete row". I have the delete working and the menu is showing up but this isn't firing when you right click on the datagridview.

This is where I am setting the row to edit:
Private Sub ModifyRowToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ModifyRowToolStripMenuItem.Click
If Not datagridview_TagAssignment.CurrentRow Is Nothing Then
[Code] .....

I am always ending up on row(0) and never the row I right clicked on.
Private Sub datagridview_TagAssignment_CellMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) Handles datagridview_TagAssignment.CellMouseClick
If e.Button = Windows.Forms.MouseButtons.Right AndAlso e.RowIndex >= 0 Then
datagridview_TagAssignment.Rows(e.RowIndex).Selected = True
End If
End Sub

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Error When Set Focus To A Particular Cell In Datagridview?

Mar 22, 2011

I have a custom datagridview. I have to set focus to the cell(0,0) of that datagridview when it got focus.I have tryed the following code:

Me.CustomDataGridView1.CurrentCell = Me.CustomDataGridView1(0,0)

in the GotFocus event of that datagridview.But when i run and try to enter some text in a cell, then press the DOWN button to go to the next cell but there is a NullReferenceException.

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Focus On A Highlighted Cell In A Datagridview?

May 20, 2009

I can Highlight the row in a datagridview. If I don't scroll down a few hundred rows. I will not see it highlighted. How can I automatically scroll to the highlighted row?[code]...

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Removing Focus From Cell In Datagridview?

Dec 5, 2009

Is there any way to remove the focus from the current cell after edit when I click the row header? I have tried various methods; repainting the row, cell, moving focus to other cell but the caret still remains in that cell.

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Set Focus To A Cell In Datagridview On Certain Condition?

Jun 19, 2009

i have 5 columns in a datagridview

when i enter 0 and press enter in the 1st column then i want focus(select) to the 4th cell of that row otherwise i want to focus the next cell.

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Setting Focus In A DataGridView's Cell?

Mar 16, 2010

I am trying to set the focus in a datagridview's cell after the user enters some data and tries to tab out of the cell. I can't seem to get the focus in the cell they just edited. I can change the background color, but the focus goes to the next field in the grid. I am trying to do this in the _CellValidating event. Here is my code :

Private Sub dgvFish_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvFish.CellValidating


The function CheckSampleNumber() takes the value of the cell just entered, and checks to see if it has been entered either in the current grid, OR in the database.

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Setting The Focus To A Particular Cell In Datagridview?

Mar 11, 2009

I am having trouble setting the focus to a particular cell in datagridview.

I have a timetable and on initialisation of the program, it compares the time in the datagridview with the current time. If the time has passed, the row is displayed in grey, if not then it is shown in black. I then want to scroll through the datagridview to focus on the first black line.

Here is the

Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting


"An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll" with the note about infinite recursion.

What have I done wrong and how do I scroll through to automatically set the focus?

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VS 2010 Focus Cell On New Row In Datagridview?

Feb 15, 2012

Is it possible to put the focus on a certain cell on the new row in a datagradview.

So when I add the row I can inmediately start typing?

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VS 2008 Datagridview, Fill One Cell Set Focus To Another?

Nov 17, 2009

I have a bound DataGridView where the user should enter an item number in one cell, the name of this item will be displayed in the next cell, and depending upon variables of this item number, the focus should be set to the correct cell on the same row.

My problem is that I can not seem to get the focus to the correct cell.

My code so far. I am having problems with the marked line:

Private Sub dgvOrdreregistrering_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvOrdreregistrering.CellEndEdit


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Prevent Moving To An New Cell In Datagrid If The Current Cell Is Empty

Aug 2, 2011

I have a datagrid that will be accepting data from an external measuring device via the serial port. The grid is also open to editing records as well. Part of the process of making this grid user friendly is to intercept the "enter" key and move to the next cell until there is a value in the cell. This is only for some cells, other cells can be blank. I have worked out how to intercept the "enter" key from another post on this forum. Here is the code:


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IDE :: Force The Cell Value To Be Blank And Focus Back On That Particular Cell And Try Again?

Jul 28, 2010

Datagridview . in cell validated handler and I have the column,row for the cell that I just checked on. If the cell contents are bad, I want to force the cell value to be blank and focus back on that particular cell and try again.The code i've tried simply moves to the next cell in the grid instead of staying where I want it to be. Surely there is a command to focus and put the 'cursor' back in a particular cell.Some sample code I'm working with:

"Invalid Job#, Correct or DIE!")
JLgrid.Item(0, Row).Value =


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.net - Prevent Form From Stealing Focus?

Mar 10, 2009

When I run my VB.NET Winforms app I do not want it to steal the focus from the other open apps. FYI, my app is started from the command line but that shouldn't make a difference. I've seen question 577076 but that doesn't seem to work.

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VS 2008 Prevent St From Losing Focus?

Jun 14, 2009

I have 2 window forms, form1 has a button, which will send a msgbox when I click on, and form2 closes when it's deactivate-event raised. If I have form2 focused, and I click on the button of the form1, form2 will get focus and then close, but no msgbox showed from form1, what should I do to get the msgbox in that case?

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Control - Prevent Another Application From Losing Focus

Nov 23, 2011

I'm creating some software to keep my students on task. I've set it up so that I can control certain aspects of their computer from my computer. Problem is, I'm not sure how to control other applications from my application. I mostly just want to prevent it from being minimized. Some students like to switch screens quickly when I walk by. I would just like to make sure that it is always on top until I specify otherwise. I'm using, I'm using the 3.5 .net framework for compatibility reasons.

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Prevent A Modeless Form From Losing Its Focus?

Jan 16, 2012

Is is possible to prevent a modeless form from losing its focus? I would like to force users to click the exit button of an addin form shown modeless before they wander into the main application. I need to show an user form of an addin modeless, in order to be able to interact with the document of main application. However, I would like to force them to exit this form before going into the main application.

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Prevent Automatic Selection On Textbox Focus

Apr 16, 2010

When you use a tab key to select a textbox, all text in it is automatically selected. What's the easiest way to prevent this from happening? (Setting the selection to none in Enter or GotFocus events doesn't work)

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Prevent Form Focus When Click The Buttons On It?

Oct 20, 2010

I am writing an on screen keyboard in VB.NET for a touchscreen. My problem is; how do I keep my keyboard form from getting focus when someone clicks the buttons on it? I have it on top using Me.TopMost That part is working great but I want to leave the current app have focus, not my keyboard. I'm guessing I need to use Windows API functions to accomplish this, however, I have not found any good examples in VB.NET.

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VS 2010 How To Prevent Form From Losing Focus

Sep 12, 2010

I want to prevent my application from losing focus, untill I close it. (so that I can not click on ANYTHING else, untill I'm done with it. period.)I've tried using Me.Focus() on a timer, but that doesn't do s***...I've also tried countless API's out there, but I seriously can't get any of them to work.. my form simply does NOT want to stay in focus! It's driving me crazy! What the hell am I doing wrong?

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Prevent Popup Toolbox Form From Stealing Parent's Focus?

Aug 4, 2011

how to prevent a popup toolbox window (Form) from stealing the parent Form's focus?I've been told to override CreateParams and use WS_EX_NOACTIVATE (0x08000000) but that does not seem to work (see the code segment shown below). I'm using Show() and not ShowDialog().

Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams
Dim cp As CreateParams = MyBase.CreateParams


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Prevent Container To Auto-scroll When A Partially-visible Child Control Got Focus?

Dec 17, 2011

A panel with enabled scrollbars has many buttons. If I push the tabulation key, focus navigates between buttons.When a partially visible button has focus, the panel scrolls itself in order to completely show the button.

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VS 2008 Tab Cell Focus?

Jun 23, 2009

I have a DGV1 and when clicking on cell, I am able to execute a code in: Sub Mouse_Click()

If DataGridView1.CurrentCells(4).Selected = True then
End If
End Sub

I like to do the same thing using Tab key when a cell in my DGV1 gets focus or the Tab enters a cell. Could someone show me which Sub I need to use.

View 1 Replies (VB) Prevent Copy And Paste From Validation Cell In (Excel.Application)?

Jan 16, 2012

How should I generate an Excel File with this rule?Should not be able to paste an invalid value to a validated cell from other worksheet.

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PropertyGrid, RefreshPropertiesAttribute Cell Focus?

Aug 18, 2009

Within my PropertyGrid I have decorated a class with the following attributes:

[Category("Category 1"),
DisplayName("Part Number"),
Dim PN1 as String


The problem is that when PN2 is changed in the PropertyGrid, it causes a refresh of all cells. Since both properties have the same DisplayName, but different Categories, the focus is set to PN1 and not PN2 after PN2 is edited.

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Setting Focus In Particular Cell Of A Datagrid?

Feb 27, 2009

Setting Focus in particular cell of a datagrid

I have two datagrids in my form. I want to set focus to the particular cell of that datagrid. Result of one datagrid is to be displayed in the other one.

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