在 flutter 如何在数据表中创建动态列和行（根据数据列）

Question

In Flutter I Want to dynamic column in my Data Table because from database every time I get different number() of column. how I create Anyone help

Answer 1

Maybe you can use a StatefulWidget that wraps your DataTable, you can define List<DataColumn> dataColumns; in your state. And every time you get your source data from API/calculations/or somewhere. You can fill this dataColumns list from source data and invoke setState .

Let's say you fetch Column names form database and put it in a List<String> columnNames=['Name','Surname','Phone','Adress'];

setState(() {
   dataColumns=columnNames.map((string)=>DataColumn(label: Text(string)).toList();   
 }); 
    

DataTable(
          columns: dataColumns,
          ////....
    
    )