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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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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Apr 29, 2011
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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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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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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Aug 21, 2009
I want to know how can i get selectedvalue of a DataGridViewComboBoxCell
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Nov 5, 2010
I have a button on a datagridview (dgproducts)that when clicked, sends the data from that row to another datagridview called (DgSelectedProducts) in a Keypress. The button on dgproducts is unbound and is (0) and is named AddProductsButton in the collection. I am using a barcode scanner into txtboxsearchbarcodeID so that when the user enters the barcode to the textbox it finds the barcode in the dgproducts it filters down to that item.
When I say filter I mean all the items that do not match are not shown on the dgproducts datagridview. Only a single item can match. That part works ok. The problem that I am having is that I do not know how to perform a click on the cell(0) ie addproductsbutton so that the item is passed from the dgproducts to the dgselectedproducts when the item is scanned. This is for a POS form so it needs to do this.
Private Sub txtBarcodeSearch_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtBarcodeSearch.KeyPress
' If e.Handled = Keys.Enter Then
txtSearchTerm.Text = txtBarcodeSearch.Text
Me.CBOProducts.DisplayMember = "ProductIDBarcode"
cmbSearchField.Text = "ProductIDBarcode"
[Code] .....
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Jan 5, 2011
i am using one combobox and displaying all the emp name available in my database.i have one text box and one button .if i press on button one emp record will be deletes from mytable.then if i click on dropdownlist of combobox i want to display updated result how?
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Aug 14, 2009
How do I input a combobox into a selected cell in a datagridview
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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
[Code]...
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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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Jul 12, 2010
I am working with a datagridview and checkboxes. Ok, I have the following code which runs without any errors but doesnt give the required results.
1) My problem is that, when I uncheck the checkbox in Cell 2, I want Cell 9 and Cell 6 to be empty.
2) When I uncheck the checkbox in Cell 2 and click any other Cell in the datagridview and check again checkbox in Cell 2 - it DELETES the data in Cell 9 & 6.
Now, when I check again the checkbox in Cell 2, Data is not populated in Cell 9 & 6 regardless how many times I try....
[Code]...
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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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Apr 6, 2012
Private Sub dgvTransactions_CellContentClick(sender As Object, e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvTransactions.CellContentClick
If e.ColumnIndex = 0 Then
[code]....
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Nov 1, 2010
I have a datagridview i use to load alot of klients into a combobox. The values of the datagridview is a connection to a MySQL db.
What it's suppose to do, is to: When clicking the combobox, it should make a list from the datagridview, getting all the names from the klients.
My problem is that it gets dublicated, and will use to much memory at a moment.
I've tryed to check if the item it was about to add allready existed in the datagridview, if it was, it shoudn't add it again, however my code failed, and I'm having huge CPU and RAM useage when running this problem for more than 30mins.
My code:
Private Sub loadCustomers()
SQL = "SELECT * FROM kunder;"
Try
[Code].....
The code above is only checking for dublicated in the combobox, And I want the code to also check for dublicated items in the datagridview.
Or a way to clear the datagridview right after the items are inserted into the combobox?
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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
[code]...
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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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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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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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Mar 9, 2012
I'm trying to make a visual map editor, and figured that a DataGridView would be the best way to go. I would like to make it so that you can click one of many buttons to set which new image the grid cell will be set to when you click it. I've set up pretty much everything except that I can't figure out how to set the background image of the cell that I clicked.
[Code]...
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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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Jan 8, 2009
I have a DataGridView control with two columns:
colName
colAnnounceURL
I also have a ComboBox that I need to bind to the colAnnounceURL in the DataGridView. So everytime I add new rows to the DataGridView, the ComboBox will be updated with the items in colAnnounceURL.
I have tried the following to no avail:
cboAnnounceURL.DataSource = dgvTrackers
cboAnnounceURL.DisplayMember = "colName"
cboAnnounceURL.ValueMember = "colAnnounceURL"
The code does not cause a crash but does nothing.
Both controls are visible to the user. The idea is to have DataGridView act as AnnounceURLs manager and ComboBox to set the active AnnounceURL.
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Sep 22, 2009
I add ComboBox column at design mode and I am trying to add Items in ComboBox at run time. How to add Items to ComboBox at form load
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May 31, 2010
I'm using a comboboxcell in a datagridview with the combobox autocompletemode set to SuggestAppend.When I enter the cell and start typing, the autocomplete window pops up. When I click an item in the autocomplete list, the cell value is set and the cell exits edit mode. This has the same effect as selecting an item with up/down arrow keys from the autocomplete list and pressing the enter key.)
I want to copy that behaviour when an item is selected from the combobox dropdown list.E.g. if the user clicks the dropdown arrow button to open the dropdown list, then clicks an item in the list, the cell value should be set to that item, the dropdown should close, and the cell should exit edit mode.I've tried adding a handler to the combobox mouse click event, but the combobox only seems to receive that event if the main part of the combobox is clicked, but not if the mouse is clicked somewhere in the dropdown part. I don't think this matters if the combobox is used in a datagridview or by itself. how to capture a mouse click in the dropdown part of the combobox?
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Jul 27, 2011
Suppose I have the code below;
Private dsOnboardListLookups as New DataSet
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
loadtodataset
[code]....
How can you apply this in datagridview with combobox as [employee code] as id and name as display name. display the position in the 2nd or 3rd column when the item was click or press enter from the combobox and use autocompletemode and autocompletesource in it.
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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
[Code]...
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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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May 27, 2009
I have a DataGrid, when the user double click on it I want to know the columnname and the value of the cell being clicked.
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Nov 11, 2009
I somehow lost a MenuStrip & StatusStrip from my form. Now I have all these MenuStrip items in the dropdown box of my properties window & I can't seem to delete them.
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