Set Datagridview Combobox Cell Value Programmatically From Database

May 21, 2010

I have a datagrid with first coloumn as combobox and second one as textbox. The combobox had datasource with displaymember and valuemember. The problem is when i try to retrieve value from database and put it into the grid i get exception


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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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Programmatically Edit My Datagridview Cell Values?

Mar 15, 2012

I programmatically edit my datagridview cell values. I use the vertical scrollbar to find the row I want to edit, select the row then click an edit button that takes me to another form where changes to the record are made. I then click a button which saves the changes and returns me to the datagridview form. No problems here.

When I return to the grid, the records are displayed with the first record at the top of the grid. That is, the vertical scroll bar has repositioned itself to the very top.

Is it possible for the datagridview to "remember" the position of the vertical scroll bar so that when I am returned to the grid, the rows displayed are the same as when I left?

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Toggle CheckBox Cell In DataGridView Programmatically?

Jun 5, 2012

When user unchecks the checkbox for the datagridview row, messagebox displayed, if the user answers yes the row is deleted, if the user answers no then I need to re-check the check box. however it doesn't actually check unless i click anywhere on the datagridview afterwards. get the dgv to updated?

Private Sub DataGridView2_CellValueChanged(sender As Object, e As DataGridViewCellEventArgs) Handles DataGridView2.CellValueChanged
If e.RowIndex <> -1 Then


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Change Cell Background Color Programmatically In A Datagridview

Mar 3, 2010

I have a datagrid view with 8 columns. How do I change the background color for any cell in columns 2-5 where the value equals the value in column 8. For instance:


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Change Programmatically Cell Values Of Bound DataGridView Without Receiving Exceptions?

May 4, 2011

I have problems trying to change programmatically the content of a cell of a bound DataGridView.I implemented a minimal piece of code to show the problem.Do the following steps to replicate the problem:

Launch example
Write the title content to create a new row
CTRL+C on inserted title


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.NET Programmatically Generating Combobox In Datagridview?

Jun 21, 2010

For my application i'm trying to generate a datagridview with a comboboxcolumn in it. This combobox I wanna fill with some data from a table in my database.I've figured out how to add items to the combobox but I can't assign a value to it. The combobox is suposed to fill with product name items, and the value should be the weight of the product, so later on i can calculate the total weight.But now it's just displaying the product name, and the value is also the product name.

Dim palletds As New DataSet
Dim palletsql As String
Dim i As Integer
palletsql = "Select * from pallets"


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How To Set DataGridView ComboBox Cell Value

May 18, 2012

I have a datagridview which have a ComboBoxCell, ComboBox is bound to data,, I want to use it as Traditional ComboBox,, I mean I want to display its Item (from display members) on the base of its value.

For example:
When I do this
Datagridview1.CurrentRow.Cells(4).value = 4 'Cell 4 is the DatagridviewComboBoxCell

It gives me the error that
"DatagridviewComboBoxCell.value is not valid",

But I want that this combobox should Select And Display the item which value is 4.

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Programmatically Change Foreground Color And Make Bold Text In Individual Cell Location On DataGridView Control?

May 5, 2010

How to programmatically change foreground color and make bold text in individual cell location on DataGridView control (Visual Basic)?

I use "dgMatrix.Rows(r).Cells(c).Value = x" to assign individual numeric values to individual cells in a DataGridView control. My question; is there a similar way to change foreground color and make bold the text in this cell, by specifying the individual row/column cell location?

For example; for cell (row 3, col 5) in the DataGridView make text in cell say red and bold or blue and bold so as to highlight and distinguish individual cell contents. As needed, I will also need to reset these properties (foreground back to automatic/black and font from bold back to regular); the reset could be done globally to the whole DataGridView as opposed to indiviaually by cell.

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Get Selectedvalue Of DataGridView ComboBox Cell?

Aug 21, 2009

I want to know how can i get selectedvalue of a DataGridViewComboBoxCell

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Input A Combobox Into A Selected Cell In A Datagridview?

Aug 14, 2009

How do I input a combobox into a selected cell in a datagridview

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VS 2010 Datagridview - Change The Text Of The Combobox Programmatically After The Items Have Been Filled

Aug 12, 2011

Im Using a datagridview to display items in an invoice. when the user enters the data in, they use a DGVcombobox to select which particular item they want. what i want to know is. can i change the text of the combobox programatically after the items have been filled

Edit The DGV in question has 2 predefined columns one is a comboboxcell and the other is a text box cell im trying to fill it using


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Change Datagridview Combobox Cell Style On Form Load?

Apr 23, 2012

at the moment i can change the datagridview combobox cell style using the cellvaluechanged event handler using the following code:
Private Sub DataGridView1_CellValueChanged(ByVal sender As Object, ByVal System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged
If e.RowIndex <> Column1.Index Then


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Custom Control And Datagridview ComboBox Cell Back Color

Jun 5, 2009

I have added a custom Control to my project, but every time I edit it and rebuild the form that I use the custom control in adds the project name in front of the control and won't compile. i.e. Project name = MyProject, Custom Control name = MyControl. When I rebuild the project after editing my control I get an error, MyProject.MyControl doesn't exist. If I remove the MyProject from the line it compiles and runs fine until next time I edit the custom control.

I can't figure out what I would be doing wrong to cause this, or why it is putting the project name in front of the control, but then not accepting it. I am also struggling figuring out how to change the back color on an individual cell in an Datagridview Combo Box. The style.backcolor property of the cell doesn't seem to do anything.

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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


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Show A Multi-column Combobox In A DataGridView Cell Using Vb 2005?

Sep 26, 2011

coding multi column combobox in a DataGridView cell. When I click the combobox cell from datagridview, It shows the multiple column such as Name, address and telephone. When I choose the item, it will return the value.

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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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Datagridview - "Programmatically" Set Cursor In Cell?

Mar 27, 2009

how to "programatically" set an active cursor within a datagridviewcell?my requirement is, when a row is selected in a datagridview control, the corresponding "Value Column" textbox cell goes into edit mode.the DataGridViewTextBoxCell object as a "IsInEditMode" attribute, however, no obvious way to put that cell into edit mode.

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TextBox Connection To Datagridview Cell Or Database?

Aug 16, 2009

I have two forms in my program,on Form1 there's DataGridView and it shows the content of my database,on my Form2 there's few textboxes and listboxes. Wen you select row on Form1.DataGridView and double click the row header it pops up Form2 and shows the info of that previously selected row in those textboxes and listboxes.

Now with some help,i've managed to understand how to do that,but how to make those textboxes and listboxes connected to that row also?
I mean when i enter something in textbox it brings back the value to corresponding cell(to that cell of which value was shown in the textbox). Or how to make that textbox connected to the same row directly in my database itself(probably worse scenario,since any time i type new vallue and hit enter ir will connect to database,other way the value in DataSource will only be changed,it would take less resources and time probably?)

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IDE :: How To Add A Row Or Set Cell Programmatically

Feb 6, 2012

In Vb 2008,DataGridView Witout Datasource Link......

Sub DataGridView1_CellEnter(ByVal sender
As Object,


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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.


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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Merge Cell In Excel Programmatically?

Aug 19, 2011

i need to merger two cells if the values is exceeds the width of the cells.

for example i have string like "Internet" so it will fir in single cell. if have string like"Internet protected level is off" for this i need merge the automatically i dont want wrap with the same

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Possible To Fill Data To First Cell Programmatically

Jun 12, 2009

I am developing a software using datagridview (vb6 feels better) and i am using shows the focus blue box but it is not possible to fill data to the first cell programatically.also i have used from within a button_click event as follows

1- MyGrid.CurrentCell.Value = 22

2- MyGrid.Rows(0).Cells(0).value = 22

3- MyGrid.BeginEdit(True)

3- MyGrid.CurrentCell.Value = strData

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VS 2010 Set Cell To Edit Programmatically

Feb 16, 2012

I tried alot of things to achieve this but sadly no positive result.How can I set a cell to edit.[code]The focus is on the right column and the right row (DataGridViewComboBoxColumn). But it is not in edit mode (the symbol in the the rowheader is an arrow (select) and not the pen (edit)).When I tab to a textcell I can just type the values. But on the DataGridViewComboBoxColumn I have to press F2 so its in editmode.

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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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Insert And Retreive Values From Database In Datagridview Combobox Column

Jun 18, 2009

I m filling values in DataGridView using following code [code]Can anybody help me to insert and retreive values from database in datagridview combobox column.

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Insert Programmatically Datetime Value Inside Datagrid Cell?

Apr 3, 2009

i have datagrid bind to datatime that has one coloumn datetimeI want that user press space bar inside datagrid cell and i want insert current datetimei try so

If e.KeyCode = Keys.Space Then
dgrdVisite.Item(dgrdVisite.CurrentRowIndex, 4) = DBNull.Value
dgrdVisite.Item(dgrdVisite.CurrentRowIndex, 4) = Now.Date.ToShortDateString


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Trigger DataGrid View Cell Click Programmatically?

Jun 12, 2011

I have a program that gets some information from the user and updates the database.I also have two DataGridView, OpenOrders and ItemsInOrder When the user click on a cell in the OpenOrders a CellChange event is triggered and it updates the ItemsInOrder grid view. Now after I update the quantity of a product i want to cause that CellChange event to trigger again in order to refresh the ItemsInOrder grid view.

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Programmatically Set The Control Shown In A Cell Of A Table Layout Panel?

Jan 4, 2012

I am writing a windows forms application in visual studio 2010 (using VB). I want to change the control shown in a particular cell of a Table Layout Panel at runtime. Like this...

If radiobutton1.checked then tablelayoutpanel1's cell 1,1 shows panelOne
else tablelayoutpanel1's cell 1,1 shows panelTwo

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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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