myDataColumn.Unique = true;
myDataTable.Columns.Add(myDataColumn);
myDataColumn = new DataColumn();
myDataColumn.DataType = System.Type.GetType("System.String");
myDataColumn.ColumnName = "商品名称";
myDataColumn.DataType =System.Type.GetType("System.Decimal");
myDataColumn.ColumnName = "商品价格";
//为数据表添加数据行
myDataRow = myDataTable.NewRow();
myDataRow["id"] = 1;
myDataRow["商品名称"] = "足球";
myDataRow["商品价格"] =57.5;
myDataTable.Rows.Add(myDataRow);
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