Remove duplicate data in the datatable

A method is written. The dataview in the able is used to obtain the table view, and dataview is converted back to the datatable to remove the repeated row values of a field.

//DT is the table to be converted

// Primarykeycolumns is the name of the column in DT that does not contain duplicate row values.

Public Datatable getdistinctprimarykeycolumntable (datatable DT, String [] Primarykeycolumns)
{
Dataview dv = DT. defaultview;
Datatable dtdistinct = DV. totable ( True , Primarykeycolumns );

//The first parameter is critical. If it is set to true, the returned system. Data. able will contain rows with different values for all columns. The default value is false.
ReturnDtdistinct;
}