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Questions tagged [datagridviewcomboboxcolumn]

32 questions
11
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1 answer

DataGridViewComboBoxColumn - Have to click cell twice to display combo box

I am using a DataGridView, created using the designer with a few columns including a DataGridViewComboBoxColumn column. It is slightly irritating that I have to click on each cell twice or even three times to display the drop-list: If I click over…
Mr. Boy
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1 answer

Selected items in DataGridViewComboBoxColumn always retrieve the first value

Assume the data I have are 'valuenumber1', 'valuenumber2', 'valuenumber3'. I have a problem where when 'valuenumber2' or 'valuenumber3' is selected, the next row will be created but the previous row (having 'valuenumber2' or 'valuenumber3') will…
Megumi
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1 answer

DataGridViewComboBoxColumn Selected Value / Index

I am attempting to populate a DataGridViewComboBoxColumn with a list of strings then select one of them based upon their value on form load. A simple task one would think, but I just can't get it right. I am populating a DataGridViewComboBoxColumn…
tfcmad
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1 answer

How to fill a DataGridViewComboBoxColumn?

Sorry if this is something that should be obvious, but this is my first project using VB.NET, and some things are still beyond me. I'm trying to setup a combobox inside a DataGridView but I keep getting System.ArgumentException:…
des
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C# WinForms DataGridView: drop down opened/closed event?

Is there a chance to know when the dropdown list of a DataGridViewComboBoxColumn is opened (and closed), regardless of the eventual value change? I'm asking because I'd like to stop the underlying DataSource from updating, while the dropdown list is…
Alberto
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1 answer

c# DataGridViewComboBoxColumn selectedValue spread throughout the whole line

I'm stuck with the following problem: i build a dataGridView with 7 DataGridViewComboBoxColumn, adding with the following code foreach (string jour in Enum.GetNames(typeof(Jours))) { DataGridViewComboBoxColumn comboboxColumn =…
m2c
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1 answer

Why does SelectedIndexChanged is called with -1 on EditingControlShowing?

I created a custom DataGridViewComboBoxColumn "TPDataGridViewComboBoxColumn" which inherts from "DataGridViewComboBoxColumn", public class TPDataGridViewComboBoxColumn : DataGridViewComboBoxColumn { public TPDataGridViewComboBoxColumn() { …
Anton Schrage
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DataGridViewComboBoxColumn displaying "DataGridViewComboBoxColumn { Name=NewBox, Index=-1 }" text instead of ComboBox

I am making a simple windows forms application that imports the headers from a CSV file into a DataGridView and then adds a row with a combo box for each column. The ComboBox just has some string literals in it but when I run the program and load…
Tm1985
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Show combobox item dynamically, depending on the record

I want to display a Comboxbox Item, depending on a data table. for example: 1 = open 2 = close .... The combobox content is created with the datatable: string sqlStr = "select id, description from sdg.pa_status"; MySqlDataAdapter adapt = new…
apa13179
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Replacing huge DataGridViewComboBoxColumn for performance

I have a dialog with a WinForms DataGridView that shows a user list. Each row contains an AD-User combobox (DataGridViewComboboxColumn) that can grow very large (10K+ items). This DataGridView is used to link the users with their corresponding…
Langley
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AdvancedDataGridView crashes on ComboBoxColumn filtering c# WinForm

I use the AdvancedDataGridView nuget and I face a problem I can't resolve... The filtering is working on every columns except the DataGridViewComboBoxColumn that crashes when I'm filtering it. My FilterStringChanged event code : void…
Akiro
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DataGridView Cell Formatting Error

DataGridView caught me again, I cannot figure out, why I get cell formatting error with following code. None of the solutions I found on the net wouldn't work/fit either. On load I set: Dim dtAlign As New DataTable ' creating and filling a…
Oak_3260548
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Error : system.argumentexception: datagridviewcomboboxCell value not Valid

I have a DGV(unbound) with many Columns and one of the Column is ComboBoxColumn. I want to add Items in it whenever user enters in the First column. This I am able to do on CellValueChange Event . i.e. if Cell Value of Index 1 changes then…
Kirti
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Making DataGridViewComboBoxColumn values visible but not selectable

I have a combobox in Datagridview (DataGridViewComboBoxColumn) , I want Some values to be selectable by the user and the others ( "Pending" value) Visible but not selectable. this issue is that these data are in the database, and the pending value…
Wael
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Unexpected behaviour with DataGridViewComboBoxColumn Value/Display members binded to DataTable from an Access DB

I'm doing something to be supposedly straight and simple, yet I cannot make it work. I've an Access DB (64 bits), which is accessed by an OleDB connection. If I bind the values of a DataGridViewComboBoxColumn to a DataTable's fields ([int]id and…
Javier Gómez
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