可以使用Datatable的addColumn方法来添加列。例如: 代码语言:javascript 复制 table.addColumn("Name", "string"); table.addColumn("Age", "number"); 添加行数据:使用Datatable的addRow方法可以向表格中添加行数据。可以通过传递一个包含列名和对应值的对象来添加行。例如: 代码语言:javascript 复制 table.a...
dt.Columns.Add("column0", System.Type.GetType("System.String"));//Method 2 DataColumn dc = new DataColumn("column1", System.Type.GetType("System.Boolean"));dt.Columns.Add(dc);（3）Add rows for DataTable //Initialize the row DataRow dr = dt.NewRow();dr["column0"] = ...
dt.Columns.Add(dc); //2.创建带列名和类型名的列(两种方式任选其一) dt.Columns.Add("column0", System.Type.GetType("System.String")); dt.Columns.Add("column0",typeof(String)); //3.通过列架构添加列 DataColumn dc =newDataColumn("column1",System.Type.GetType("System.DateTime")); DataColum...
dr["column0"] ="AX"; dr["column1"] =true; dt.Rows.Add(dr);//Doesn't initialize the rowDataRow dr1 =dt.NewRow(); dt.Rows.Add(dr1); (4)Select row//Search the second row 如果没有赋值,则用is null来selectDataRow[] drs = dt.Select("column1 is null"); DataRow[] drss= dt...
(constFDataTableEditorRowListViewDataPtr&first,constFDataTableEditorRowListViewDataPtr&second){// 返回值:大于 0 表示 A > B; 0 表示相等; 小于 0 表示 A < Bint32Result=(first->CellData[ColumnIndex].ToString()).Compare(second->CellData[ColumnIndex].ToString());if(!Result){returnfirst->...
column = new DataColumn(); column.DataType = Type.GetType("System.String"); column.ColumnName = "item"; table.Columns.Add(column); // Create new DataRow objects and add to DataTable. for(int i = 0; i < 10; i++) { row = table.NewRow(); row["id"] = i; row["item"] =...
accessors. If you retrieve the value by means of the table's row index or column index, you will not be able to set the return value. The reason for this is that the logic to return this value is built into the property setter of the specific data column in the generated dataset ...
8、Index Column 索引列 高交互性的表格经常需要一个‘counter’来标记每一行处的位置,这一行是不支持排序的,并且随着数据的动态变化每个索引对应的行会动态变化。 例子展示了DataTables是如何实现这个功能的,第一列是counter列,并且搜索和排序时会动态更新。这是通过监听表格的order和search事件实现的,当检测到这些事...
demo.Columns.Add("column0", typeof(String)); 3.接下来介绍一下如何用代码进行删除操作: 使用DataTable.Rows.Remove(DataRow)方法 demo.Rows.Remove(dt.Rows[0]); 使用DataTable.Rows.RemoveAt(index)方法 demo.Rows.RemoveAt(0); 使用DataRow.Delete()方法 ...
When you first create aDataTable, it does not have a schema (that is, a structure). To define the schema of the table, you must create and addDataColumnobjects to theColumnscollection of the table. You can also define a primary key column for the table, and create and addConstraintobjec...