如何在DataGridView中使用未绑定字段？

Question

I'm working with a DataGridView having two TextBoxColumn s and a DataGridViewButtonColumn .

As datasource I bound a DataTable with three columns: "ID" , "Name" , "Surname" , but I need to show only the last two columns, so in my datagrid I defined only Name and Surname (and the button column) setting the AutoGenerateColumns property equal to false .

Now I need to use the "ID" field when the button on a row is clicked...

What's the correct way to get the "ID" value from the current row?

Answer 1

If it's about showing the other columns, I'd leave the ID column in, and hide it by setting Columns["ID"].Visible to false. Then you can just access the data in the column, but it doesn't show on screen.

Answer 2

gridview.Rows[gridview.CurrentRow.Index].Cells["id"].Value 

您将获得当前行的“ id”值

Answer 3

To hide something .Visible do not works fast. Try to use DataView and BindingSource .

See this link .

There are filters that works very good. Like this:

 BindingSource tSource = new BindingSource();
 DataView view = new DataView(_table);
 tSource.DataSource = view;

Here I find a row:

 DataRow row = CurrentRow(_dataGridView);

Here is the Implementation:

 public static DataRow CurrentRow(DataGridView aGrid)
    {
        CurrencyManager xCM =
          (CurrencyManager)aGrid.BindingContext[aGrid.DataSource, aGrid.DataMember];
        DataRowView xDRV = (DataRowView)xCM.Current;
        return xDRV.Row;
    }

Something like this should work.

Hope this help you!