How to add items in a datagridview combobox cell

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How can I add items to an already existing combobox cell in a datagridview combobox column ,
Each row contains a different items in the combobox column ,
I want to add the items to the specific combobox cell of a specific row ,
I tried something like this but it didn't work :

dataGridView1.Rows[0].Cells[2].Items.Add();

Thank you .

Posted 18-Jan-11 1:22am

Michael Waguih

Updated 1-Nov-16 2:08am

v4

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Pavan Kumar 10-Sep-14 7:27am

Hi i got same problem now if you are solved the problem please tell me the solution
thanks in advance

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dharmesh15 · Answer 1 · 2011-01-18T01:26:00

Solution 1

DataGridViewComboBoxColumn colType = new DataGridViewComboBoxColumn(); 
colType.HeaderText = "Type"; 
colType.DropDownWidth = 90; 
colType.Width = 90; 
colType.MaxDropDownItems = 5; 
this.dataGridView1.Columns.Insert(7, colType); 
colType.Items.AddRange("A", "N", "P", "S", "Z"); 
this.dataGridView1.Columns[7].DataPropertyName = "trans_type";

this can help may be

Posted 18-Jan-11 1:26am

dharmesh15

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Michael Waguih 18-Jan-11 7:41am

Sorry I need a code for an already existing column
each row combobox cell contains different items
Thanks

dharmesh15 · Answer 2 · 2011-01-18T01:28:00

Solution 2

use this link

http://homepage.ntlworld.com/herring1/datagrid.html

Posted 18-Jan-11 1:28am

dharmesh15

Comments

Michael Waguih 20-Jan-11 3:36am

This link help me to create a new column with the same items in all cells of this column .
but I need a way to add items in specific cell of a specific row ,
Thanks

Michael Waguih · Answer 3 · 2011-01-19T21:38:00

Solution 3

I need a way to add items in specific cell of a specific row in the combobox column of a datagridview ,
Can anyone help me.

Posted 19-Jan-11 21:38pm

Michael Waguih

Updated 19-Jan-11 21:39pm

v2

Mr JonP · Answer 4 · 2016-11-01T02:08:00

C#

> dataGridView1.Rows[0].Cells[2].Items.Add();

First, you do not say where this code appears; the most likely problem is that it is in the form constructor, which is too early, so put it in the Form Load or the DataBindingComplete event handler.

Second, it is advisable to clear the Items collection first because if you don't and the DataGridViewComboBoxColumn has anything in its items list it will be present, and if you run the above line more than once the items will accumulate. This code works for me:

DataGridViewComboBoxCell comboCell = (DataGridViewComboBoxCell)dataGridView1[2,0];
comboCell.Items.Clear();
comboCell.Items.AddRange(arrayOfItemsForRow0);

How to add items in a datagridview combobox cell

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