Create An On-KeyDown Event For A Datagridview Cell?

May 24, 2010

I'm using an on key down event for my datagridviewer that fires every time a key is pressed while the datagridviewer is selected(Focused).I want the same thing to happen while in a cell, but there is no event for key down in a cell.

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DataGridView - ReadOnly Cell KeyDown Event?

Nov 25, 2011

i have a datagridview with a readonly cell, i would like to show a formdialog window when the user press the space key. but is not possible since the cell is readonly=true.

i'v been using the following code with the EditingControlShowing event. and when the cell is readonly=false it works sometimes.

Private Sub sub_fecha_keydown(ByVal sender As Object, ByVal e As KeyEventArgs)
If e.KeyCode = Keys.Space Then
Dim frm As New frmFecha

[Code].....

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Cell KeyDown Event - The Event Does Not Exist?

May 24, 2010

I have this code in the onKeyDown event of the datagridview.

Private Sub DataGridView1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles DataGridView1.KeyDown
Select Case e.KeyCode[code]....

This works. When the Enter button is pressed, it acts as the TAB button.The problem I am having is this only works if the datagridviewer is selected.As soon as I enter data into a cell (A cell is selected) the code wont work as it is not set for the cell keyDown event. The event does not exist, so I have to somehow create it.

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DataGridView KeyDown/KeyPress To Return New Cell Value?

Apr 15, 2012

how to handle the keypress event but I can't find a way to update the datagridview cell with the new contents of the editing textbox control. If I add a character to a the text of a cell I want it to react with the new cell contents.

Private Sub DGV_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DGV.EditingControlShowing

[Code].....

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Datagridview Keydown Event Not Triggering When In Typing Mode (After Pressing F2)?

Dec 27, 2009

I'm using a Datagridview my task is when the key F5 press using Keydown event executing some code

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Datagridview Cell Value - Get The Old Value Of The Cell In Event

Jan 28, 2011

In cellEndEdit event I need current cell editedFormatedvalue ( well it is done) now my question is can we get the old value of the cell in this event or have to handle some other event for this means let I have a cell in which current value is abc and when I edit it it become def now I want to get both the values in cell end edit event ( or any else ) but finally I have to perform task on cellendedit

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Datagridview Cell Textchanged Event?

Apr 25, 2011

I was wondering if there's an easy way to make a cell textchanged event for a datagridview, like you have the textchanged event for textboxes, an event that gets triggered everytime the user press a letter/number/symbol/backspace/space, so i can check in that event if the datagridview has changes and whether i should enabled my save button to save the changes made.

Or is there a better way to check whether i need to enable my save button?

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Set Focus On The Keydown Event So After The Button Control, Sets The Focus Into The Keydown?

Dec 15, 2010

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...

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.net - DataGridView Cell Click Event In VS 2010?

Jan 7, 2011

why the first code block below works, but the second code block does not? (Only thing I can see is the

Handles DataGridClaims
syntax
Block 1
Private Sub DataGridClaims_CellContentClick_1(ByVal sender As System.Object, ByVal e As

[code]....

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Add New Rows In Datagridview When Cell Leave Event?

Jun 2, 2011

I want to add a new rows when cell leave event occurs.It shows error like Operation can not be performed in this event handler...

here is my code,

If PatientDataGridView.CurrentCell.ColumnIndex = 2 Then
PatientDataGridView.Rows.Add()
End If

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Change The Value Of A Cell In DataGridView.CellValidating Event?

Sep 8, 2011

I handle the validation in the CellValidating event, and if the cell is invalid display an error message, then cancel the exit of edit mode. However I would also like to erase the content of the cell currently in edit mode.

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Datagridview And The Cell Gets Validated In The Validating Event

Aug 8, 2010

I have a datagridview and the cell gets validated in the validating event;

[Code]...

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DataGridView Cell Click Event In VS 2010?

Jul 28, 2011

I am a tad new to the DataGrid controls, but I am just curious as to why the first code block below works, but the second code block does not? (Only thing I can see is the
Handles DataGridClaims syntax

Block 1
Private Sub DataGridClaims_CellContentClick_1(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridClaims.CellContentClick

[code].....

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VS 2008 Datagridview Cell Value Changed Event?

Aug 2, 2011

vb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged

[code]....

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C# - After Which Event Should Perform An Action After Editing A Cell In A DataGridView

Mar 24, 2010

I have a WinForms DataGridView control on a form. There are two fields in this DataGridControl:

Email Address
Resolved Email Address (calculated based on the input in Email Address)

After the user inputs or changes a value in Email Address, I want the value in Resolved Email Address to update based on a separate method. What event should I tie in to so that that the Resolved Email Address cell is updated after the Email Address cell is updated?I'm not sure where to put the event because the user could do a number of things after adding/changing a value: tab to the next cell, click cancel on the form, click ok on the form, etc.

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Comboboxcolumn In DataGridView With An Event That Autosizes Cell Width

Nov 25, 2009

I have a comboboxcolumn in a DataGridView. I have loaded int with string data that appears in the dropdown box. I have added an event to it for an SelectedIndexChanged. What I am trying to do is autosize the width of the cell in the column based on the string chosen in the drop-down box within this SelectedIndexChanged event. This seems to work but it does not work off the initial selection change. When I select the desired string in the dropdown box the width of the cell does not autosize. I am not sure why.

I was trying to get around this by wrapping an IF stmt around the autosize logic by saying if cell value = "" then cell.width = Max Width of all loaded strings/ However, I can't figure out how to access the string array loaded into the dropdown list

[Code]....

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DataGridView - Trigger Event When Type Something Wrong In Cell

Jun 1, 2011

I want to have one event triggered when I type something wrong in the cell in the specific column in the datagridview. What event should be? Or cell leave?

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Change Cell Color Of A Datagridview On The Form Load Event?

Nov 10, 2010

I would like to be able to show the defaultstyle of the cell in the form load

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Pass Cell Location Of DataGridView To An Event Handler Via A ContextMenu?

Nov 20, 2009

I have a context menu which is shown over a DataGridView as follows below. The Context menu is shown if the mouse up occurs over the second column of the DataGridView. I also have a bunch of event handlers set up for each item in the context menu. I now want to pass the location of the cell in the datagridview to the event handlers.Do I have to pass the NewPoint() to a public variable and then translate that into a cell location within the event handler?

Private Sub DataGridView14_MouseUp(ByVal sender As Object, ByVal e As MouseEventArgs) Handles DataGridView14.MouseUp
Dim hitTestInfo As DataGridView.HitTestInfo

[code].....

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Raise EditingcontrolShowing Event When We Try To Change The Value Of A Combobox Cell In Datagridview

Jul 21, 2011

is it possible to raise EditingcontrolShowing event when we try to change the value of a combobox cell in datagridview

[Code]...

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VS 2010 DataGridView - Event When User Edits Checkbox Cell?

Jun 6, 2010

I'm afraid this is a very simple question, but I can't figure it out... I hardly ever use the DataGridView (usually use a third party grid) so I never needed to do this before.Anyway, I have a DataGridView that is data-bound to a List(Of SomeClass). The grid is not ReadOnly, but I made every column ReadOnly except the very first, which is a boolean column so it displays a checkbox. This way, the user cannot edit any cell value, but he can check/uncheck the checkbox in the first column.

What I need now basically is an event that is raised when the user (not programmatically) changes the value of this checkbox. I also need to be able to retrieve the bound item from that event (from the row number I think?) but that should be no problem, I hope.Anyway, there's a bunch of events that looked promising but all have something I don't want:

1. CellBeginEdit - Fires before the checkbox value has changed, so can't use this.

2. CellEndEdit - Only fires after the edited row loses focus. I want to save it back to the database as soon as the user changes the checkbox value!

3. CellValueChanged - Same problem as nr 2.

I'm sure it must be possible for me to react as soon as the user changes the value of the checkbox? How can I do this?

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Disable Scroll Event Of Listbox After The Keydown Or Keypress Event?

Apr 9, 2010

Programming language is vb.net

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Populate A Single DataGridView Cell with Input Of A Textbox After Click Event Of A Button?

Jan 10, 2011

How can I populate a single DataGridView cell with input of a textbox after click event of a button?

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Handle Keydown While Cell Is In Edit Mode?

Nov 17, 2009

i've made form with DGV... when user selects or enters a cell and presses F1 a help form pops up.... but when the cell is in edit mode and presses F1 .... nothing is happening ... is there any way to handle keydown in cell while is in edit mode ..

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VS 2008 Create Custom DataGridView Cell From UserControl

Feb 16, 2011

Well, the title pretty much says it all. I have a user control that is a a collection of six label controls. three are used as visual color indicators, and the other three are used as the corresponding value for each color indicator. (It's sort of like a legend key on a chart or map.) I have created a custom class to store the three values, and the associated methods to interact with the values. (I can probably use a structure instead of a class, but right now, I don't want to discuss that.) My problem, is that I want to show my user control inside a cell of a DataGridView. I've looked at the examples that create a MaskedTextBox DataGridViewCell, but I can't seem to get it to work. Here is what I have:

[Code]....

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Keydown Event

Aug 31, 2010

this code works

Private Sub TxtLname_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TxtLname.KeyDown
If e.KeyCode = Keys.Enter Then
If IsNumeric(TxtLname.Text) Then[code]....

when I replace the keys.enter with "keys.tab" it won't work..

Private Sub TxtLname_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TxtLname.KeyDown
If e.KeyCode = Keys.tab Then
If IsNumeric(TxtLname.Text) Then[code].....

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MDI And Keydown Event?

May 26, 2010

my child form is a game that allows user to move using keydown event (arrow key left and right). But when i import it to MDI, keydown event doesn't work anymore. Am i missing something here?

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Use The Keydown Event?

Sep 17, 2008

how to use the keydown event soif you press 'A' a messagebox will popup saying you pressed A else it will say This function is not reconised i am hoping to use this knowlage to start a game so that if you press W the image will go up.

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Button After Keydown Event?

Dec 7, 2010

why does the keydown event not responding when i put a button on the form?all are set but after i put one button keydown event is not working...

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Error In Using Keydown Event

Mar 31, 2011

in my Application i have created a status strip which has three lable to show capslock status, numlock status and current date.I have used the following code, it is working perfectly when Master(MDI Parent) Load but it dosen't change when key is pressed. every time i start my application it shows the current status of the keys but dosent change when key is pressed.[code]

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