How I can search rows in a datatable with a searchstring?

Question

I want to search rows in my DataTable.

I\'ve tried this:

 protected void imggastsuche_Click(object sender, EventArgs e) 
        {
              


        

Answer 1

you could build the query you are going to use in the select.

            if(TextBoxCusName.Text != "")
            {
                query = "CustomerName LIKE '%" + TextBoxCusName.Text.Trim()+"%' AND ";
            }
            if(TextBoxCusContact.Text != "")
            {
                query = query + "CustomerNo LIKE '%" + TextBoxCusContact.Text.Trim() + "%' AND ";
            }
            if(TextBoxVehicleNo.Text != "")
            {
                query = query + "VehicleNo LIKE '%" + TextBoxVehicleNo.Text.Trim()+"%'";
            }
            if(query.EndsWith("AND "))
            {
                query = query.Remove(query.Length - 4);
            }
            DataRow[] result = dataCustomerAndVehicle.Select(query);

this equivalent to

select * from dataCustomerAndVehicle where CustomerName LIKE '%...%' AND ...