我可以在不使用DataSource属性的情况下在DataGridView中添加DataTable吗

Question

Here is method which copy DataTable into DataGridView which is not not working, this method only able to add columns and empty rows in DataGridView. Can any one suggest me solution for this without using DataSource property of DataGridView?

    public void CopyDataTableInDataGridView(DataTable table, DataGridView gdv)
    {
        if (gdv.Rows.Count > 0)
            gdv.Rows.Clear();

        if (table != null && table.Rows.Count > 0)
        {
            foreach (DataColumn _colm in table.Columns)
            {
                DataGridViewColumn _col;

                if (_colm.GetType() == typeof(bool))
                    _col = new DataGridViewCheckBoxColumn();
                else
                    _col = new DataGridViewTextBoxColumn();

                _col.Name = _colm.ColumnName;
                _col.HeaderText = string.Concat(_colm.ColumnName.Select(x => Char.IsUpper(x) ? " " + x : x.ToString())).TrimStart(' ');
                gdv.Columns.Add(_col);
            }

            foreach (DataRow _row in table.Select())
            {
                //Rows getting added in dgv but not data
                // By adding following line in Code my problem get solved
                //object[] _items = _row.ItemArray;
                gdv.Rows.Add(_row);
            }
        }
    }

Answer 1

You are trying to add a DataRow to DataGridView instead of adding DataGridViewRow

Look at what visualstudio's intelisence is telling you about DataGridView.Rows.Add() methods. There are 4 of them:

• Add() - adds an empty row to DataGridView

• Add(DataGridViewRow) - adds new row (this is what you need)

• Add(count) - adds [count] of empty rows to DataGridView

• Add(object[]) adds new row and populates it with values (you can also use this)

you are currently using the last one: Add(object[]). compiler doesn't complain because it's treating DataGridViewRow you passed to it as an array of objects with only one object in it. Obviously not what you want.

here is related question: https://stackoverflow.com/a/9094325/891715

Answer 2

通过在DataGridView中添加行之前添加以下行，我的问题得到解决。

   object[] _items = _row.ItemArray;