<分区>
我想将窗口窗体中的多个值保存到数据表，然后将此表绑定(bind)到Datagridview。值正在添加到 Datatable 但在:
dataGridViewX1.DataSource = dt.DefaultView.Table);
绑定(bind)点错误显示
Object reference not set to an instance of an object
我该如何解决？
public AddOrder(string ItemName,int Qty,Double Price)
{
try
{
DataTable dt = new DataTable();
dt.Columns.Add("id");
dt.Columns.Add("Item Name");
dt.Columns.Add("Qty");
dt.Columns.Add("Unit Price");
dt.Columns.Add("Amounts");
DataRow dr = dt.NewRow();
dr["id"] = a;
a++;
dr["Item Name"] = ItemName;
dr["Qty"] = Qty;
dr["Unit Price"] = Price;
dr["Amounts"] = (Convert.ToInt32(dr["Qty"]) * Convert.ToInt32(dr["Unit Price"]));
dt.Rows.Add(dr);
dataGridViewX1.DataSource = dt.DefaultView.Table;
}
catch(Exception ee)
{
DevComponents.DotNetBar.MessageBoxEx.Show(ee.Message,"Error Message");
}
}