Filtering A Win Form With Sql Command?

I am using VB Net (2008) and SQL (2008) in Windows Forms, I am trying to filter a DataGridView , this DataGridView is being fill by Add New Data Source to my win form thus Dataset, Binding Source, Table Adapter are added to my form. Also my win form has 4 combo Boxes, a button and a DataGridView . Cbobox1 hold all the columns Name of the DGV , let say for instance that Supplier is the name of the column selected by cboBox1, CboBox2 which hold all the operators (being fill manually) like ( =, <> =< , >=, < , > , like, not like, between, not between, is null, is not null ), CboBox3 hold all the names of the Suppliers in alphabetic order, CboBox4 hold the same as CobBox3, Note: Cbobox3 and Cbobox4 values change as CboBox1 select a different column name. When using BindingSource.Filter every thing work fine, for this ex: let say cboBox2 is worth <> See part of my code EX:BindingSource.Filter = String.Format ("{0} {1} {2}", cboBox1.text, cboBox2.text, boBox3.text) except when using the operator "Between" I get this message âœBindingSource.Filter do not support this type of operator". So this is why I am trying to use the Sql Select Command. Wandering if it is possible to use the already Sql Connection and Table Adapter to build a SQLString Filter and also could I use the curly braces.