C＃Datagridview运行“ SELECT Raw_Cab​​.CAB，Count（*）AS Total”

Question

I want to run a query over a datagridview1 who is filled with this data:

Nr Name Cost

125 NAME1 1

126 NAME1 2

127 NAME1 1

128 NAME2 1

129 NAME2 2

130 NAME4 1

131 NAME1 1

The data is added programmatically from a external txt source.

Normally if you use a query and a database the text would be :

SELECT Raw_Cab.Name, Count(*) AS Total FROM Raw_Cab GROUP BY Raw_Cab.Name;

And the result would be

CAB Total

 NAME1 5 NAME2 3 NAME4 1 

Is there a way to get the same result but then directly from a datagrid into an object or another datagrid?

Alex

Answer 1

I am not sure what is the goal, but if I understand correctly, you would like to pass a filter expression on the datagrid? You can do it on the grid view, using this code:

(dataGridView.DataSource as DataTable).DefaultView.RowFilter = string.Format("Total < '{0}'", 5);

More on it can be found here:

http://msdn.microsoft.com/en-us/library/system.data.dataview.rowfilter(v=vs.110).aspx

Answer 2

我通过安装Xammp并在其上运行mysql查询解决了所有问题