C# DataTable 增加行与列

亲测有用的方法

DataTable AllInfos = new DataTable();//生成一个表格
                DataColumn typeColumn = new DataColumn();//建一个列
                typeColumn.DataType = Type.GetType("System.String");
                typeColumn.ColumnName = "TYPE";

                DataColumn VSNColumn = new DataColumn();
                VSNColumn.DataType = Type.GetType("System.String");
                VSNColumn.ColumnName = "VSN";

                DataColumn REMARKColumn = new DataColumn();
                REMARKColumn.DataType = Type.GetType("System.String");
                REMARKColumn.ColumnName = "REMARK";

                AllInfos.Columns.Add(typeColumn);
                AllInfos.Columns.Add(VSNColumn);
                AllInfos.Columns.Add(REMARKColumn);

                DataRow dr;//生成行对象
                for (int i = ; i < type_list.Count; i++)
                {
                    dr = AllInfos.NewRow();
                    dr["TYPE"] = type_list[i];
                    dr["VSN"] = vsn_list[i];
                    dr["REMARK"] = remark[i];
                    AllInfos.Rows.Add(dr);
                }

其他的方法：原文地址：http://blog.csdn.net/u013084746/article/details/53024266

方法一：

DataTable table =new DataTable();
//创建table的第一列
DataColumn priceColumn =new DataColumn();
priceColumn.DataType = System.Type.GetType("System.Decimal");//该列的数据类型
priceColumn.ColumnName ="price";//该列得名称
priceColumn.DefaultValue =;//该列得默认值
// 创建table的第二列
DataColumn taxColumn =new DataColumn();
taxColumn.DataType = System.Type.GetType("System.Decimal");
taxColumn.ColumnName ="tax";//列名
taxColumn.Expression ="price * 0.0862";//设置该列得表达式，用于计算列中的值或创建聚合列
// 创建table的第三列
DataColumn totalColumn =new DataColumn();
totalColumn.DataType = System.Type.GetType("System.Decimal");
totalColumn.ColumnName ="total";
totalColumn.Expression ="price + tax";//该列的表达式，是第一列和第二列值得和
// 将所有的列添加到table上
table.Columns.Add(priceColumn);
table.Columns.Add(taxColumn);
table.Columns.Add(totalColumn);
//创建一行
DataRow row = table.NewRow();
table.Rows.Add(row);//将此行添加到table中
//将table放在视图中
DataView view =new DataView(table);
//绑定到DataGrid
dg.DataSource = view;
dg.DataBind(); 

方法二：

DataTable tblDatas =new DataTable("Datas");
tblDatas.Columns.Add("ID", Type.GetType("System.Int32"));
tblDatas.Columns[].AutoIncrement =true;
tblDatas.Columns[].AutoIncrementSeed =;
tblDatas.Columns[].AutoIncrementStep =;
tblDatas.Columns.Add("Product", Type.GetType("System.String"));
tblDatas.Columns.Add("Version", Type.GetType("System.String"));
tblDatas.Columns.Add("Description", Type.GetType("System.String"));
tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" });
tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" });
tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" });
tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" });
tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" }); 

方法三：

DataTable tblDatas =new DataTable("Datas");
DataColumn dc =null;
dc = tblDatas.Columns.Add("ID", Type.GetType("System.Int32"));
dc.AutoIncrement =true;//自动增加
dc.AutoIncrementSeed =;//起始为1
dc.AutoIncrementStep =;//步长为1
dc.AllowDBNull =false;
dc = tblDatas.Columns.Add("Product", Type.GetType("System.String"));
dc = tblDatas.Columns.Add("Version", Type.GetType("System.String"));
dc = tblDatas.Columns.Add("Description", Type.GetType("System.String"));
DataRow newRow;
newRow = tblDatas.NewRow();
newRow["Product"] ="这个地方是单元格的值";
newRow["Version"] ="2.0";
newRow["Description"] ="这个地方是单元格的值";
tblDatas.Rows.Add(newRow);
newRow = tblDatas.NewRow();
newRow["Product"] ="这个地方是单元格的值";
newRow["Version"] ="3.0";
newRow["Description"] ="这个地方是单元格的值";
tblDatas.Rows.Add(newRow);