Question

I have a datagrid I must fill with a mix of

• Columns dynamically created with code
• Columns dinamically created retrieving data from a query (dynamic, naturally)

DataTable table;

using (SqlDataReader dr = cmd.ExecuteReader())
{
    table.Load(dr);

    // Insert row number column
    DataGridViewTextBoxColumn rowColumn = new DataGridViewTextBoxColumn()
    {
        HeaderText = "Row",
        Width = 40,
        ReadOnly = true,
        Frozen = true
    };
    dgv.Columns.Insert(0, rowColumn);

    // Insert grouping column
    DataGridViewComboBoxColumn groupColumn = new DataGridViewComboBoxColumn()
    {
        HeaderText = "Grouping",
        Width = 70,
        DisplayStyle = DataGridViewComboBoxDisplayStyle.ComboBox,
        FlatStyle = System.Windows.Forms.FlatStyle.Flat,
        Frozen = true
    };
    groupColumn.Items.AddRange(new object[] { "-", "Group 1", "Group 2"});
    dgv.Columns.Insert(1, groupColumn);

    // Populate row & grouping columns
    .................

    dgv.DataSource = table;
}   

DataGridView is filled with desired data and user can alter everything he wants.
Finally I need to sort rows according to the modified content of columns edited values (both the created ones and the databound ones): how can I do this?

Databound datagridviews cannot be sorted using Sort() nor can I use Sort method of DataTable (or DataView I could put in the middle) because I have extra data.
I’m stuck with this…

Answer 1

Add the columns in your table instead of your datagridview.
This will make the column databound instead of creating it “manually”.
Then to turn the column into a combobox column have a look at this SO link:
How to change a datagridview cell style from the default textbox to combobox in vb.net?