Datatable Select() Method

Question

I have a Datagridview and the Data Source is dtCustomer I just want to filter the content of grid view based on a search text. Itried the follow

Answer 1

You could try using a DataView (code not tested) -

DataView dv = new DataView(dtSearch);
dv.RowFilter = "cust_Name like '" + txtSearch.Text + "%'";
grvCustomer.DataSource = dv;

Answer 2

Or Try this;

dataGridView.Datasource = datatable.Select("....").CopyToDataTable()

Answer 3

I think this is what you're looking for?

//DataTable dtSearch =  dtCustomer;
//dtSearch.Select("cust_Name like '" + txtSearch.Text + "%'");


grvCustomer.DataSource = dtCustomer.Select("cust_Name like '" + txtSearch.Text + "%'");

And when you want to go back to the original data

grvCustomer.DataSource = dtCustomer;

Answer 4

dtCustomer.Rows.Cast<DataRow>().Select(dr => (string)dr["cust_Name"].Startswith("zzz")).ToList()

Answer 5

The return value for DataTable.Select is a DataRow[] array. It returns a list of matching DataRows. Your code does nothing with those rows at the moment.

You can setup a DataView with a filter and set the grid's DataSource to the DataView:

DataView dv = new DataView(dtSearch);
dv.RowFilter = "...";
grvCustomer.DataSource = dv;

Answer 6

DataTable.Select returns array of row, but you are binding entire data table not filtered rows. use this way or DataView

DataTable dtSearch =  dtCustomer;
var filter = dtSearch.Select("cust_Name like '" + txtSearch.Text + "%'");
grvCustomer.DataSource = filter.ToList();