DataColumn(label: Text('年龄'), onSort: (intcolumnIndex,boolascending){ setState(() { _sortColumnIndex = columnIndex; _sortAscending = ascending;if(ascending){ data.sort((a, b) => a.age.compareTo(b.age)); }else{ data.sort((a, b) => b.age.compareTo(a.age)); } }); }),...
DateTime date; public MyDate() { date = new DateTime(); } public MyDate(DateTime date) { this.date = date; } public override string ToString() { if (date.Year == 1) { return ""; } return date.ToShortDateString(); }public DateTime Date { get { return date; } set { date = ...
DataView dv=dt.DefaultView; dv.Sort="UserName";//根据UserName排序,得到新的DataView DataTable dtNew=dv.ToTable();//将DataView重新转为DataTable 4.1 DataViewRowState: 其实DataView是类似于DataTable,它里面也有RowState,我们可以使用RowStateFilter来过滤不同状态的行。 4.2 DataView的过滤器 设置过滤 R...
那么首先应该先获取例如type=checkbox的值对吧 /* Create an array with the values of all the checkboxes in a column */ $.fn.dataTableExt.afnSortData['dom-checkbox'] = function ( oSettings, iColumn ) { var aData = []; $( 'td:eq('+iColumn+') input', oSettings.oApi._fnGetTrNodes(...
从指定的数据表中删除某一列。输入可以由列索引、列名或Data column变量组成。 Remove Data Row 从指定的数据表中删除一行。输入可以由行索引或数据行变量组成。 Remove Duplicate Rows 从指定的DataTable变量中删除重复的行,只保留第一次出现的行。 Sort Data Table ...
"] =2; newRow3["CompanyName"] ="NewCompanyName2"; table.Rows.Add(newRow3);// Presuming the DataTable has a column named Date.stringexpression ="Date = '1/31/1979' or OrderID = 2";// string expression = "OrderQuantity = 2 and OrderID = 2";// Sort descending by column named...
"] =2; newRow3["CompanyName"] ="NewCompanyName2"; table.Rows.Add(newRow3);// Presuming the DataTable has a column named Date.stringexpression ="Date = '1/31/1979' or OrderID = 2";// string expression = "OrderQuantity = 2 and OrderID = 2";// Sort descending by column named...
"] =2; newRow3["CompanyName"] ="NewCompanyName2"; table.Rows.Add(newRow3);// Presuming the DataTable has a column named Date.stringexpression ="Date = '1/31/1979' or OrderID = 2";// string expression = "OrderQuantity = 2 and OrderID = 2";// Sort descending by column named...
//Sort the date column v.Sort = "Date DESC"; //Convert the dataview to datatable dt1 = v.ToTable(); //Take the first row which will be the maximum value date DateTime dtMax = Convert.ToDateTime(dt1.Rows[0]["Date"]);
DataTable table = new DataTable("childTable"); DataColumn column; DataRow row; // Create first column and add to the DataTable. column = new DataColumn(); column.DataType = System.Type.GetType("System.Int32"); column.ColumnName = "ChildID"; column.AutoIncrement = true; column.Caption ...