DataGridView - Allow User To Select One Cell And Delete It

Mar 11, 2012

I want to be able to delete records from my database and have this piece of code to do so:
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim ra As Integer
myConnection = New SqlConnection("connectionstring'")
myConnection.Open()
myCommand = New SqlCommand("DELETE FROM player_table WHERE player_ID = 1", myConnection)
ra = myCommand.ExecuteNonQuery()
MessageBox.Show("Player Deleted")
myConnection.Close()
But I want let the user actually select one of the cells displayed and delete that.

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Delete A Cell Value In DataGridView?

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How can I delete a cell value in DataGridView?

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Aug 21, 2011

In my datagridview you have to double click it (putting it into editing mode) in order to delete the contents of the cell. Is there a way to program it so i can delete the contents by just pressing the delete button when it is highlighted?

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Getting Datagridview Cell Select?

Feb 20, 2012

I'm using a search code using a textbox then it lists the record on a datagridview if search is successful. After the search, the user could select the record on the dgv in which later on can be edited or deleted. Edit and delete button is disabled when nothing is selected on the record. What I want to know is how to trigger an event to make those buttons to be enabled when a record is selected. By the way my datagridview is connected to my textboxes. My question goes something like this, but this is totally wrong.

dgvStud_CellClick = Nothing then
btnEdit.enabled = true
btnDelete.enabled = true
End If

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Select A Particular Datagridview Cell?

Jul 24, 2010

i have a datagridview of four columns, i'd like to enable the selection of just one column and disable the rest.

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Select A Row (or Cell) In A Datagridview

Jan 23, 2007

Im having a little trouble setting focus on a row in a datagridview. When a user presses the Enter button in my datagrid, a sub is called and the window is closed. Now next time i display the window, the selected cell has moved one row down. This is because when you press enter in a datagridview it jumps to the next line (wich i really dont want it to do). Now then in my forms shown event i placed the code: Datagrid.rows(0).selected = True Now this highligts the first row when the window is displayed, but when you press the down key, it jumps to the third row, because even though the first row is highlighted, its the second row who has focus (because it jumped their after pressing the enter key) How can i set the focus on a specifik row in the datagridview in vb2005?

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Aug 28, 2010

How to select Row by givieing cell value in datagridview

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Select First Visible Cell Of New Row In DataGridView?

Nov 30, 2010

I'm trying to focus input and fire the editing event on each new row that I add to a DataGridView in my form.[code]...

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VS 2008 Select A Cell In Datagridview?

Jun 24, 2010

I have a dgv with 14 columns.

If i'm in dgv.item(8,0) in edit mode What code can i use to jump to (12,0) and also enter editmode.

I call it editmode, dont know what the actual term is . Its the state where you can enter a value into that cell

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VS 2008 DataGridView Cell Validation - Allows The User To Exit Out Of The DataGridView Changes

Nov 6, 2010

I have a DataGridView where Cell_Validating is being done. I have a Cancel button on my form that allows the user to exit out of the DataGridView changes. The problem is that if a cell was currently flagged as in error, I cannot exit and remove columns from the DataGridView. I get the following error: Operation did not succeed because the program cannot commit or quit a cell value change. Is there a way to cancel the validation once the focus has been removed from the DataGridView? Here is my Cell_Validating

[Code]...

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.net - Select Cell In DataGridView By Header Text?

Feb 29, 2012

I'm looping through rows in a datagridview, and selecting a cell from the 3rd column each time:

Dim customer_name as String
For Each dgvr As DataGridViewRow In myDataGridView.Rows
customer_name= dgvr.Cells(2).Value
'....
next dgvr

However, I'd really like to make it dynamic, in case a new column gets added to the grid, so that I need the 4th column, not the 3rd. I'd like to use the column's header text. So something like...

customer_name= dgvr.Cells("Customer").value

Can this be done?

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VS 2010 Select A Specific Cell In A DataGridView?

Jan 5, 2012

I am making a program which remembers my last selected row in a data table. I have done this by adding a column with a CheckBox, upon CellClick the CheckBox is checked, and upon ellLeave it is unchecked and the new cell is checked, after every action a Update command is run. There will never be more than one row with a checked cell in the DataGridView,however, the data table is in a relationship with other tables, so there may be more checked cells in the data table itself. My problem now is selecting the row with that cell when I open the program and when changing between other data tables and back again.All solutions I found on selecting a specific cell in a DataGridView are referring to index numbers, and in my case I need it to find a data value in a column, I do not know the specific row, only that one row contains the value of True while everything else is False.

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VS 2008 Delete And Add New Items When Click On The Combobox Cell In The DataGridView?

Jul 1, 2011

am Working on VB.NET 08 Windows Appl. Present i am Working on the DataGridViewCombobox Column. When i click the Combobox ,Clear the Items Which are having the Combobox and add New Items Manually.

For Example: In the Load Event For each Combobox cells Having a,b,c Items. But When i Click the Combobox cell in the DataGridView the Items (a,b,c) delete and Add new Items X,Y,Z .

How can i delete and add new items when click on the Combobox cell in the DataGridView??

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C# - DataGridView Editmode = EditOnEnter Select The Row To Delete It?

Jul 8, 2010

When I use EditMode = EditOnEnter, The cell enter on editmode when I select the row.

It is hard to user to select the RowSelector to Delete the row.

do you know any Trick ?

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Select The Row On Datagridview And Send It Cell's Value Into Textbox / Label Control On The Same Form?

Aug 18, 2009

i want to select the row on datagridview and send it cell's value into textbox / label control on the same form..but it seems not work, but when i use

Private Sub DGV_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGV.CellClick

it can but i have to choose by click on each cell on it datagridview..what i want is i only have to click on it[datagridview] row but i get all value on it's column.. so i can parse/send it value into textbox.it only can be clicked with single row i knew it by DataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect

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Show Tooltip When User Editing Cell In DataGridView

Nov 23, 2009

I am trying to trigger a tool tip when a user enters a cell in a DataGridView and starts editing it. The idea being that I want the user to know to hit the Return key after they are finished typing in a string in the cell. I only want the tool tip to show when the user is editing a cell in columindex 1.

The following below does note seem to be working.
Private Sub dataGridView14_CellEnter(ByVal sender As Object, _
ByVal e As DataGridViewCellEventArgs) _
Handles DataGridView14.CellEnter
'Only care about columnIndex 1
If e.ColumnIndex = 1 Then
[Code] .....

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VS 2008 Hosting A User Control In A DataGridView's Cell?

May 20, 2011

I've followed the tutorial on the MSDN for this subject to the T and I'm not getting the User Control to Display in the cell.

I don't think the InitializeEditingControl is ever getting called by the Cell for some reason.

Here are my classes:

This is the actual User Control Class:

vb.net
Public Class CustomCheckBoxUC
Implements IDataGridViewEditingControl

[Code]....

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May 6, 2012

I have code that downloads a webpage into an .html or a .txt file so I have the webpage source code, how do I:Search the HTML source code in the file for a keyword anchor point (Hair Color, it's unique in the entire webpage source code)Step down 3 linesAssign what ever is on that line to a variable called FoundIt?

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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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Dec 29, 2009

How do I show the error icon and ToolTip when the user is editing the cell in dataGridView?

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VB2008 Get The DataGridView CellMouseDoubleClick To Fire When A User Double Clicks On A DGV Cell?

Oct 29, 2010

how to get the DataGridView CellMouseDoubleClick to fire when a user double clicks on a DGV cell.I currently have both DGV.CellMouseClick & DGV.CellMouseDoubleClick implimented in my code.The DGV.CellMouseDoubleClick never fires and the DGV.CellMouseClick always fires. The only exception is when I position the cursor between DGV cells and get the double arrow. If I double click with the double arrow then I get the DGV.CellMouseDoubleClick to fire.I need to take different actions for users RT-Click, RT-Dbl-Click, LT-Click and LT-Dbl-Click.

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Select A Record (A Cell) In The Column 'Dog And Have The Text Of That Cell Appear In A Textbox?

Jan 4, 2011

I'm using something call ultragrid in my program.The program works as a mini-record keeping area (Like any datagrid, really). Well, I am adding a history to it and it allows the user to see the last 50 records searched. They get a grid showing the records. This, thus far, works perfectly What I want to do is this: I want to select a record (A cell) in the column 'Dog and have the text of that cell appear in a textbox. This is what I've tried with no success.

HTML
Private Sub HistoryTextBox_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles HistoryTextBox.TextChanged
If ugHistoryButton.ActiveRow.Cells("Dog").Selected = True Then

[code]....

It just doesn't seem to want to transfer over when I select the cell in the 'Dog' column.

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.net - Datagridview - User Only To Be Able To Select Rows And Not Individual Cells

Jul 1, 2011

I want the user only to be able to select rows and not individual cells in a VB.NET DataGridView. Is there a way to make this happen? I don't see an option for the DataGridView object to control this via properties.

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When A User Select A Date From A Datetimepicker, It Filters Evrything From The Datagridview?

Mar 11, 2010

HI have a small problem that i cant figure out. i have a program that i want when a user select a date from a datetimepicker, it filters evrything from the datagridview that are for that date..Hare is the code i have

Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim oledb As System.Data.OleDb.OleDbConnection

[code].....

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DGV - If User Edits Cell Make Cell Bold

Mar 3, 2010

DGV.. if user edits cell make cell bold

Is there a way to check if the cell has been changed via DGV without calling getchanges() on DS on every cell edited?

when user enters a cell and changes a value i would like it to change font to bold for that cell.

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DataGridView Cell Borders - Bottom Border Of The Cell Disappears?

Dec 23, 2011

Have this code so that when a checkbox in a column of my datagridview is checked, then the corresponding cell in column 2 (of the same row the check box is in) will turn blue with font color white.

[code]...

I'd also like to add a line so that as well as the cell going blue, the bottom border of the cell disappears, so cellborderstyle = none.

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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)

[Code].....

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Disable Cursor Moving From Cell To Cell In Datagridview

Aug 10, 2010

Is it possible to disable cursor moving from cell to cell in datagridview?

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Javascript - Code Giving The Msgbox If User Select Or Not Select The Checkbox?

Jan 27, 2011

IT STILL GIVES A MSGBOX IF I SELECT THE CHECKBOX BOX OR NOT ....My code below will redirect to Google in both conditions: If the user selects the checkbox, then it will redirect to www.google.com, but if a user forgets to check the checkbox then it shows the msg box with an ok button. When I click on ok it should redirect to www.google.com

I want When a user forgets to check any of the checkboxes to show a msgbox with an ok button and stay on the same page. Otherwise if user selects any of the checkboxes then redirect to google

[code]...

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Datagridview Cell Updates Another Cell?

Jul 1, 2010

I have a Datagridview called DgvReturns. which contains two fields,

1) Yes - checkbox (boolean)and

2) Received Date - textbox (DateTime)..

What I want to do at run time is that when a user Checks the Yes checkbox Received Date is populated with the current Datetime.

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