//定义字段名称(常量)
private const string FIRST_COLUMN = "FIRST";
private const string SECOND_COLUMN = "SECOND";
DataTable dataTable = CreateDataTableStruct();
AddNewDataRow("第一列内容", "第二列内容", dataTable);
//创建数据表方法
private DataTable CreateDataTableStruct()
{
DataTable pDataTable = new DataTable();
//构建第一列
DataColumn pFirstColumn = new DataColumn();
//定义列的名称(唯一)
pFirstColumn.ColumnName = FIRST_COLUMN;
//定义列的标题(可以不唯一)
pFirstColumn.Caption = "第一列";
//定义添加列数据类型
pFirstColumn.DataType = typeof(string);
//构建第二列
DataColumn pSecondColumn = new DataColumn();
pSecondColumn.ColumnName = SECOND_COLUMN;
pSecondColumn.Caption = "第二列";
pSecondColumn.DataType = typeof(string);
//将建好的列添加到数据表里
pDataTable.Columns.Add(pFirstColumn);
pDataTable.Columns.Add(pSecondColumn);
ret