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 = 0; 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 =50;//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[0].AutoIncrement =true; 
tblDatas.Columns[0].AutoIncrementSeed =1; 
tblDatas.Columns[0].AutoIncrementStep =1; 
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 =1;//起始为1 
dc.AutoIncrementStep =1;//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);