sorry for the late reply just joined the group, heres the solution
from the web:
There are several ways to go about this task. The simplest way
involves adding a single combobox to the DataGrid.Controls, and then
selectively displaying it as needed when a combobox cell becomes the
currentcell. All the work is done in a few event handlers and no
overrides or derived classes are necessary. This technique is
discussed in Microsoft KB article Q323167.
The other techniques require you to derive a columnstyle. Attached
is a dropdown combobox sample (C#, VB) that shows how you can use a
combobox in a datagrid. This implementation differs from other
available columnstyle samples (gotdotnet.com and C# Corner ) in that
it derives from DataGridTextBoxColumn. These other samples derive
directly from DataGridColumnStyle, and thus have to add
functionality that already exists in DataGridTextBoxColumn.
This derived DataGridTextBoxColumn does not implement a databound
combobox where you can set its DataSource, DisplayMember, and
ValueMember to bind the combobox to a foreign table. If you need
such a combobox, there is another sample link referenced at the end
of this FAQ that does implement such a databound combobox.
This sample just attempts to replace the TextBox member of
DataGridTextBoxColumn with a standard ComboBox member. Only two
overrides need to be handled along with 2 events to get a functional
implementation.
Here are the notes from the code that list the 3 steps to add a
combobox to your datagrid.
// Step 1. Derive a custom column style from DataGridTextBoxColumn
// a) add a ComboBox member
// b) track when the combobox has focus in Enter and Leave events
// c) override Edit to allow the ComboBox to replace the TextBox
// d) override Commit to save the changed data
// Step 2 - Use the combo column style
// Add 1 col with combo style
DataGridComboBoxColumn ComboTextCol = new DataGridComboBoxColumn();
ComboTextCol.MappingName = "custCity";
ComboTextCol.HeaderText = "Customer Address";
ComboTextCol.Width = 100;
ts1.GridColumnStyles.Add(ComboTextCol);
// Step 3 - Additional setup for Combo style
// a) make the row height a little larger to handle minimum
combo height
ts1.PreferredRowHeight = ComboTextCol.ColumnComboBox.Height + 3;
// b) Populate the combobox somehow. It is a normal combobox,
so whatever...
ComboTextCol.ColumnComboBox.Items.Clear();
ComboTextCol.ColumnComboBox.Items.Add("Chicago");
ComboTextCol.ColumnComboBox.Items.Add("Corvallis");
ComboTextCol.ColumnComboBox.Items.Add("Denver");
ComboTextCol.ColumnComboBox.Items.Add("Great Falls");
ComboTextCol.ColumnComboBox.Items.Add("Kansas City");
ComboTextCol.ColumnComboBox.Items.Add("Los Angeles");
ComboTextCol.ColumnComboBox.Items.Add("Raleigh");
ComboTextCol.ColumnComboBox.Items.Add("Washington");
// c) set the dropdown style of the combo...
ComboTextCol.ColumnComboBox.DropDownStyle =
ComboBoxStyle.DropDownList;
-----
hope this helps
--- In [EMAIL PROTECTED], "futureit2000" <[EMAIL PROTECTED]>
wrote:
> Hi Everyone,
> I'm wondering if any one could recommend a grid for VB.NET that
has a
> combobox capability and also a masked edit control for VB.NET. I
> don't mind paying for them but if free ones are around and they do
> the job then that would be better.
> Many Thanks
> James Brand
> Innovative Creations Ltd
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