datagridviewcombobox

How to change a datagridview cell style from the default textbox to combobox in vb.net?

大憨熊 提交于 2019-12-02 10:49:37
问题 I have a datagridview which is populated from a dataset. Once it is populated, if the user clicks on a row, the last column should change from textbox to combobox. I am using vb.net 2010. On the Datagridview1 CellClick event: With DataGridView1 If .Rows.Count = 0 Then Exit Sub i = Datagridview1.currentrow.index Dim gridComboBox As New DataGridViewComboBoxCell gridComboBox.Items.Add("A") 'Populate the Combobox gridComboBox.Items.Add("B") 'Populate the Combobox gridComboBox.Items.Add("C")

How to change a datagridview cell style from the default textbox to combobox in vb.net?

淺唱寂寞╮ 提交于 2019-12-02 04:52:10
I have a datagridview which is populated from a dataset. Once it is populated, if the user clicks on a row, the last column should change from textbox to combobox. I am using vb.net 2010. On the Datagridview1 CellClick event: With DataGridView1 If .Rows.Count = 0 Then Exit Sub i = Datagridview1.currentrow.index Dim gridComboBox As New DataGridViewComboBoxCell gridComboBox.Items.Add("A") 'Populate the Combobox gridComboBox.Items.Add("B") 'Populate the Combobox gridComboBox.Items.Add("C") 'Populate the Combobox .Item(8, i) = gridComboBox End With But this results in an error: The following

Dynamically add item to DataGridView ComboBox Column by typing in the cell

两盒软妹~` 提交于 2019-12-02 04:34:31
I have a DataGridView that has a ComboBox column and I must update each ComboBox's possible values when its drop down shows. I also must make the ComboBox es capable of having custom typed values. When a new value is typed, it should be added to the list of possible values. The problem is that I get infinitely many DataError event triggers (error message boxes), I know how to handle it by just changing a field in the DataGridViewDataErrorEventArgs object, but I know it is not the correct way to handle it: private void DataGridView1_DataError(object sender, DataGridViewDataErrorEventArgs e) { e

DataGridViewComboBoxColumn: limit MaxDropDownItems

不想你离开。 提交于 2019-12-02 03:27:25
问题 I would like to know how to limit the number of items to show in DataGridViewComboBoxColumn . In simple ComboBox we can do it as: comboBox1.IntegralHeight = false; //this is necessary to make it work!!! comboBox1.MaxDropDownItems = 3; But how to do the same in DGV s comboBox`? When creating ComboBoxColumn there is no IntegralHeight property. 回答1: I have figured it out by my self, by subscribing to DataGridViewEditControlShowing event, and with this code inside of it: private void

How to change DataGridView cell color based on value of Combobox?

萝らか妹 提交于 2019-12-01 06:49:10
问题 I have a datagridview as below: I would like: When the form load, if the Gender column's value is Male, the corresponding color cell of column Name will be White When if changes the value of the column Gender : Male → Female, color cell of the column Name will be DarkGray, otherwise if changes the value of the column Gender : Female → Male, color cell of the column Name will be White I tried it but I am not able to do it: private void dataGridView_CurrentCellDirtyStateChanged(object sender,

Controls in the same DataGridView column dont render while initializing grid

为君一笑 提交于 2019-12-01 00:11:34
GOOD BAD I'm hosting different controls in DataGridView column. When I add controls at the same time I initialize the grid the controls show as Textboxes (BAD). If I add the controls after the DataGridView has been initialized controls render correctly (GOOD). public Form1() { InitializeComponent(); ControlsInGridViewColumn(); //<- renders controls as textboxes } private void button1_Click(object sender, EventArgs e) { ControlsInGridViewColumn(); //<- does correctly render controls } private void ControlsInGridViewColumn() { DataTable dt = new DataTable(); dt.Columns.Add("name"); for (int j =

Controls in the same DataGridView column dont render while initializing grid

我与影子孤独终老i 提交于 2019-11-30 18:51:16
问题 GOOD BAD I'm hosting different controls in DataGridView column. When I add controls at the same time I initialize the grid the controls show as Textboxes (BAD). If I add the controls after the DataGridView has been initialized controls render correctly (GOOD). public Form1() { InitializeComponent(); ControlsInGridViewColumn(); //<- renders controls as textboxes } private void button1_Click(object sender, EventArgs e) { ControlsInGridViewColumn(); //<- does correctly render controls } private

DataGridView linked to DataTable with Combobox column based on enum

99封情书 提交于 2019-11-30 09:05:50
问题 Having spent a lot of yesterday searching on this one I have to give up. I have a DataGridView linked to a Datatable. One of the columns is an enum and I want that to show as a Combobox column. I found this link Create drop down list options from enum in a DataGridView which has an answer of using the following... DataGridViewComboBoxColumn col = new DataGridViewComboBoxColumn(); col.Name = "My Enum Column"; col.DataSource = Enum.GetValues(typeof(MyEnum)); col.ValueType = typeof(MyEnum);

How to bound a DataGridViewComboBoxColumn to a object?

廉价感情. 提交于 2019-11-29 14:42:03
I'm trying to bound a DataGridViewComboBoxColumn to an instance of Foo, but when i set a value on the grid i got a ArgumentException telling me that i can not convert from String to Foo. var data = (from item in someTable select new { Foo = item.foo, Bar = item.Bar }).ToList(); grid.DataSource = data; column.DataPropertyName = "Foo"; column.DataSource = (from foo in Foo select foo).ToList (); //foo is an instance of Foo column.DisplayMember = "SomeNameField"; //Foo.SomeNameField contains a description of the instance Am i missing something? is it possible to databind to a complex object?

How to bind data in datagridview combobox column

眉间皱痕 提交于 2019-11-29 14:22:50
Here are contacts but we can have multiple contacts so i want to show a list in combobox DataTable dt = new DataTable(); dt = MainClass.GetDatabyQuery("select * from tbl"); if (dt.Rows.Count > 0) { dgv_ClientDetail.DataSource = dt; } I have this method to fetch values from database in datagridview but I want one datagridview combobox column and want to bind data in one dgv combobox and other in dgv texboxes. If anybody know then tell me. Here are three columns Name, City , Contacts. I want to show multiple contacts in dgv combobox column Just select only Name and City in dt , so that you can