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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Override An Event - TextChanged Event Not To Be Triggered When The CellClick Event Occurs?

Jul 20, 2010

I'm trying to validate a few things in a form I'm building. It has a datagrid with clients info (taken from an access database) and a few textboxes where the user can type some search criteria. The thing is that those same textboxes are used to add new clients to the database and to modify a client's information if one from the datagrid is selected, so I made it that the buttons to insert and modify clients are disabled on load and thenevery time the text on a textbox changes ("TextChanged" event) they become enabled. So far so good. But then I wanted to make it so when a client from the datagrid is selected both buttons become disabled again until the text on a textbox changes (to make sure they're adding a different client and not the same one that was
selected).

I tried using the CellClick event from the datagrid to disable the buttons, but since every time a client is selected from the datagrid the info is shown on the textboxes, this triggers the TextChanged event too, and the buttons become available.So, is there a way I can tell the TextChanged event not to be triggered when the CellClick event occurs?

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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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.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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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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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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Set The TextChanged Event In NumericUpDown Box?

Dec 31, 2010

I want to set the TextChanged event in NumericUpDown box,so that when you press a key, it instantly fires the textchanged event.The default ValueChanged event of the NumericUpDown box does not instantly fire the ValueChanged event. You need to first press the Enter key after you enter a number.And I read somewhere that NumericUpDown box also has a TextChanged event.How do I set the TextChanged event in the NumericUpDown box?

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Textbox TextChanged Event?

Jul 30, 2010

How can I bypass the TextChanged event if I populate the textbox during loading?for exampleWhen the VB Win form application starts it loads several text boxes with deflt information.thus firing the TextChanged event. (which I don't want to happen)

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Without Textchanged Event How To Get The Textbox Value?

Sep 26, 2011

i have one project any one textbox.i want to get the textbox value without textchanged event how to get the textbox value. means when i change the textbox value then the text changed event is fired but when i clicked one another textbox at that time i want to get the textbox value in 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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Alternative For TextChanged Event In MaskedTextBox

Mar 11, 2011

I need to know this because I am in a situation that I cannot find a alternative. I am using MaskedTextBox and has a Mask of "__/__/____". Obviously, It's a date format. Now, I cannot get if the MaskedTextBox is string.empty because it is not an empty. I cannot use "If MaskedTexBox.Text = "__/__/____" then " condition also because It never captured. If I used MaskTextBox.MaskFull = false, It gives an error on creating form. So I came up with an idea that would subtitute to TextChanged Event.

[Code]...

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Custom ASP.NET TextBox On Textchanged Event?

Mar 10, 2010

I want to let TextBox control TextChanged event fire only when there are more than one character in the TextBox.

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Textbox Textchanged Event Does Not Fire?

Sep 5, 2010

I have a Textbox on my application that recieves data from another application via a sendmessage call from the other app.

I can see the data being entered in the textbox but the TextChanged event never fires when the text changes. I need to process the data that is sent but since the event does not fire I'm kinda stuck..

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Textchanged Event Is Not Firing When Using Jscript?

Sep 14, 2009

In my asp.net application, i am using a lookup to enter data to a textbox.For making lookup i have used jscript.I have a button for this lookup from which i am entering data to this textbox.so, i am not entering values directly to the textbox.After entering values to textbox, the textchanged event is not working.What could be the reason?

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Calculated Value On TextChanged Event Can't Be Updated To Database

Jan 14, 2010

I have invoice form bound to a bindingsource and bindingnavigator. In the form I have unit price, quantity and total textboxes. The total textbox text property is set to total.text = quantity.text * unitprice.text in the textChanged event of both quantity and unitprice text boxes. The result is displayed in the total textbox. But when i hit save button on the bindingnavigator it is set to null and not saved to database. [code]When I used msgbox to see the value of total textbox before bindingsource.endEdit() it is the correct value. but after the code bindingsource.endEdit() it is null. I checked the databinding property and it is correct. What is the problem.

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Catching ENTER Key Disable The TextChanged Event?

Nov 2, 2011

I have two functios to catch enter key:

Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, _
ByVal keyData As System.Windows.Forms.Keys) As Boolean
Dim handled As Boolean
If keyData.Equals(Keys.Enter) Then
handled = TypeOf Me.ActiveControl Is ComboBox
Me.SelectNextControl(Me.ActiveControl, True, True, True, True)

[Code]...

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Combobox Text Changes Without Firing TextChanged Event?

May 3, 2010

I have a combobox that has a text portion that is clearing for unknown reasons and the TextChanged event is not firing.

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Get Total To Update Correctly In .net (using Textchanged Event)?

Sep 11, 2011

What i have in a text box that is the discount. The text box talks to the label as you type and updates it accordingly The problem is that once the discount_rate.text get to 10 or above the discount is off by 5 cents and increases as the number goes up..

Private Sub discount_rate_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles discount_rate.TextChanged
Select Case radio
Case "one"
If discount_rate.Text = "" Then

[code]....

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