datagridviewcomboboxcell

问题 I have this form that lets user choose a (Code - Product) item from a comboxbox. input quantity and price and Add it to a list. Loading the inventories to the form private List<Inventory> inventories = new Inventory().read_inventory(); Setting the ComboBox with values private void set_drop_down_inventory() { cb_inventory.DisplayMember = "name"; cb_inventory.DataSource = inventories; cb_inventory.ResetText(); cb_inventory.SelectedIndex = -1; } When a user selects a product, it will create a

问题 In a C# WinForms project I am populating a DGV from a DataTable . When a user clicks on the cell of one of the columns I need to populate a ComboBox and open it on one click . However the CBO will only open when the cell in question loses focus (click somewhere else on the form) and then gets focus back (click in that cell again) - and only if the CBO's down arrow is clicked, not if the CBO's text is clicked. I also need the CBO to open when the CBO's text is clicked. private void

问题 I am reading an xml file using dataset and then i am creating a datagridview and assigning the table from dataset to datagridview.datasource dynamically. The problem i am facing here is, i want to add a combobox for one cell in datagridview. Below is my code : datagridview1.AllowUserToAddRows = false; datagridview1.AllowUserToDeleteRows = false; datagridview1.RowHeadersVisible = false; datagridview1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells; datagridview1.AutoSizeRowsMode

问题 How can i avoid the double click on a DropDownButton used within a DataGridView ? Right now I am able to view the drop down items within the DataGridView by clicking two or more times. First time it selects the cell and second time when I click on the DropDownButton arrow, it shows the list. How can I achieve the same in a single click? 回答1: You can achieve this by subscribing for the EditingControlShowing event of the grid and there for control of type ComboBox ComboBox ctl = e.Control as

问题 I have the following DataGridViewComboBoxColumn which is generated in execution time and inserted in a DataGridView : Public Sub GenerateCol() Try Col.DataSource = LoadData() Col.DisplayMember = "code" Col.ValueMember = "code" Col.Name = "col2" Col.HeaderText = "Column 2" Col.DataPropertyName = "col2" Col.SortMode = DataGridViewColumnSortMode.Automatic dgv.Columns.Insert(15, Col) Catch ex As Exception MsgBox("ERROR: " & vbCrLf & ex.Message, MsgBoxStyle.Information) End Try End Sub And this is

问题 There are a few posts about this, but after hours of searching I still can't find what I need. The answer in the following post almost gets me what I want: Combobox for Foreign Key in DataGridView Question 1: Going off that example where a Product has many Licenses, my database mappings are all many-to-one relationships which means my License class holds a reference to the Product class. The License class does not have a property for the ProductId since that can be retrieved via the Product

问题 I am using the ( EditingControlShowing ) event to Enable AutoComplete in DataGridViewComboBox Column. private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.Control is DataGridViewComboBoxEditingControl) { ComboBox combo = (ComboBox)e.Control; ((ComboBox)e.Control).DropDownStyle = ComboBoxStyle.DropDown; ((ComboBox)e.Control).AutoCompleteSource = AutoCompleteSource.ListItems; ((ComboBox)e.Control).AutoCompleteMode = System.Windows

问题 When you add a ComboBoxColumn in DataGridView , I do not know how to handle the change event of ComboBox . 'Adding To DGV data on form load Dim cmbovoce As New DataGridViewComboBoxColumn() cmbovoce.HeaderText = "Fruit" cmbovoce.Name = "cmbovoce" cmbovoce.MaxDropDownItems = 4 cmbovoce.Width = 100 cmbovoce.Items.Add("apple") cmbovoce.Items.Add("pear") cmbovoce.Items.Add("cherries") cmbovoce.Items.Add("plums") DataGridView1.Columns.Add(cmbovoce) 回答1: I strongly recommend you to use Cell events,

问题 I have a DataGridView having one DataGridViewComboBoxColumn and I have populated that ComboBox but after clear that DataGridView I have to set one default value for that ComboBox So please help me out. 回答1: You can do this in CellFormatting event void dataGridView_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { if (e.ColumnIndex == 0) //Index of your DataGridViewComboBoxColumn { e.Value = "Default Value"; } } 回答2: I know this is an ancient post, but hopefully, I can

问题 I have a DatagridView with two DataGridViewComboBoxCell: Administration Employee. What I want to do is when I select an administration from 1st DataGridViewComboBoxCell, I'll get the list of the employees of selected Admininstration in the 2nd DataGridViewComboBoxCell. I binded the first DataGridViewComboBoxCell manually to administrationBindingSource and I tried this answer code, This is the code I used: dataGridView1.CellValueChanged += new DataGridViewCellEventHandler(dataGridView1