[DevExpress]添加非绑定列

using DevExpress.XtraGrid.Views.Base; using DevExpress.XtraGrid.Columns; private void Form1_Load(object sender, System.EventArgs e) { // ... gridControl1.ForceInitialize(); // Create an unbound column. GridColumn unbColumn = gridView1.Columns.AddField("Total"); unbColumn.VisibleIndex = gridView1.Columns.Count; unbColumn.UnboundType = DevExpress.Data.UnboundColumnType.Decimal; // Disable editing. unbColumn.OptionsColumn.AllowEdit = false; // Specify format settings. unbColumn.DisplayFormat.FormatType = DevExpress.Utils.FormatType.Numeric; unbColumn.DisplayFormat.FormatString = "c"; // Customize the appearance settings. unbColumn.AppearanceCell.BackColor = Color.LemonChiffon; } // Returns the total amount for a specific row. decimal getTotalValue(int listSourceRowIndex) { DataRow row = nwindDataSet.Tables["Order Details"].Rows[listSourceRowIndex]; decimal unitPrice = Convert.ToDecimal(row["UnitPrice"]); decimal quantity = Convert.ToDecimal(row["Quantity"]); decimal discount = Convert.ToDecimal(row["Discount"]); return unitPrice * quantity * (1 - discount); } // Provides data for the Total column. private void gridView1_CustomUnboundColumnData(object sender, CustomColumnDataEventArgs e) { if (e.Column.FieldName == "Total" && e.IsGetData) e.Value = getTotalValue(e.ListSourceRowIndex); }