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]....
I have a Winform UC packed in a CAB and hosted in an aspx web page using the <object> tag. In IE7, things work. But in IE8, no matter what settings I choose, the control never gets installed. I need to point IE8 to the CAB, download it, unpack it, and run the installer in the client machine, outside IE8. The UC is fairly complex, and requires several DLLs (third party components). The control reads data from hidden fields in the hosting page, and calls javascript functions on the page.
View 4 RepliesI 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]...
how could I get the text of a specific cell in a DataGridView control ? If it matters , in my case , all the cells contain strings or nothing . For example , in order to get the text from the cell on row 2 and column 3 , what code do I have to use ? I have tried the Value property but seems that's not it . I've found some examples on the web ,but they were all for C# ... I guess , though , it has to be easy .
[Code]...
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.
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] .....
I have a datagrid control on my form that receives data from a device on the COM port. I strip out the data I need and put it into the currently selected cell. When I load the grid, I find the first empty cell and set the focus so each load presents the user with an empty cell to start receiving data. Once I get the measurement, I need to move to the next cell down (like hitting enter in the grid). This will allow the user to do measurements with the external device without having to move to the next cell.
View 6 Repliesi want to add a rectangle or circular shape control in datagridview cell & i have to change its fill color after some specific time (Like blinking led).
View 1 RepliesI'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?
I followed an example to add a custom control (multicolumnCombobox) to my datagridview.[code]Ok, this is fine and dandy, for it adds the custom control to column 2 and row X of that loop.... Now, when I actually use the control for lets say row 0, how do I get the row 0 cell 2 value to be the same as the custom control??I have no way to communicate between the custom control and the datagridview cell.
View 4 RepliesHow do I show the error icon and ToolTip when the user is editing the cell in dataGridView?
View 8 Replieshow 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.
View 5 RepliesI'm trying to use the errortext field on a cell to display a validation error. It works fine if I leave the cell, but I can't figure out how to display it while staying in the cell. I have seen examples where the code updates the row's errortext, but I really want to mark the cell in error.
My code is:
Code Block
I am trying to display a custom control in a datagridview cell so that I can show nicely formatted information.
I am quite comfortable with the use of datagridview control accepting a list of objects as its datasource. I am also comfortable with populating the cell contents in the cellformatting event.
So I am planning to, instead of using a normal textbox control, button control and linkedtext control in datagridview cell, display my own custom control which is good one for displaying some custom data like, name, address, telephone, photo and others. It would be a nice improvement in my application.
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.
I'm trying to figure out how to set/change text within a cell in a DataGridView control. When I was using the MSFlexGrid, I used the TextMatrix function. How can I do a similar function in vb 2008?
View 1 Repliesi 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
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.
I want to enable the DataGridView's particular cell as multiline...and accordingly the rows width has to increase automatically...
My Codings:-
------------
Dim MyDtb1 As New DataTable,NRow as DataRow
[code].....
I'm making a data entry form using a datagridview and I want to control which cells in a row are visible. For example, I only want the first cell in a new row to be visible until I validate what was entered - then I'll either fill in the other cells with data or ask for user input.
View 2 Repliesi have a datagridview and i search in it with textbox but i want to select the cell that contain the word i'm searching for
View 18 RepliesI have a datagridview, wich on colum is a Combobox getting data from another table.This column it's an evaluation score mark, who permit user choose between number 1 and 10I wanna do the following:In my DGV, if the value is lower than 5, then paint this cell, and only this cell, redIf the value is uper than 5, than paint this cell green (and only this cell).That means in the DGV I will have at the same time, red and green cells.
View 1 RepliesI am having trouble when I am running the below code. I a datagridview (DG) and it has one column that is a DataGridViewComboBoxColumn and this gets populated from a list in a database.I want to go through all the lines in the DG and add them to a SQL insert statement
Dim RN As String = "Show Cell Address"
Try
Dim tempsql As String = ""
Dim sqli As SqlCommand = sqlconn.CreateCommand
Dim Counter As Integer = 0
[Code]...
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
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.
I am working on a vb6 to vb.net migration project using vs 3.5. I have a datagridview.in a particular cell of this grid, user has to enter only numeric data. but after user enter data, itshould become concainated with a $ symbol (eg: if user enter 34, the cell value should become $34). And if he/she presses the hyphen ("-") in the key board, the data (ie. $34) should become -$34 and if again presses the hyphen button in key board, the data should become $34.
View 3 Repliesvb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged
[code]....
I have a big datagridview that has a list of items, that have several states, every state has a date. My dgv will look like this:
----- Date1 | Date2 | Date3 ...
It1 |
It2 |
It3 |
The same item can have multiple states in the same date, for example: The item1 enters the factory in the date1, and leaves the factory in the same date1, what i need it's that the intersection cell, have one line with the background in green with an F (means that the item enters in the factory), and in the same cell, but in another line (multiline) in the same cell i need another F but this time with the background red (means that item leaves the factory).
The usuals columns doesn't allow me to do this, i created a simple code to use a image column and then draw a image that does what i want, but i don't like the final results and it's a little slow, and when i select the full row, i don't have the usual selected cell visual effect in this columns... I was thinking to create a datagridview column with a different type (inherited) but i don't know what column to use as base column for my column, image column and then paint the content of another control in the cell or another type?
I want to send the data that i just entered into a cell to an If-statemens to perform certain functions.I an using the following code just for testing purposes:
1
Private Sub DGVReceipt_CellLeave(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DGVReceipt.CellLeave
[code].....
I have a bound DataGridView where the user should enter an item number in one cell, the name of this item will be displayed in the next cell, and depending upon variables of this item number, the focus should be set to the correct cell on the same row.
My problem is that I can not seem to get the focus to the correct cell.
My code so far. I am having problems with the marked line:
Private Sub dgvOrdreregistrering_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvOrdreregistrering.CellEndEdit
[Code].....