How to properly format date fields coming out of an MS SQL database

I have this SQL command and the aplydate and glpostdt fields are dates.

DataCommand.CommandText = "select aplydate,glpostdt,distref from job_linker where companyid = '" + CompanyID + "' and bchsourc = 'Apply_Documents' and transnmbr ='" + ApplyToVoucherNumber + "' and trxtype = 'Apply Payments ' and dstsqnum = 16384 and cntrltyp = 0 and aptvchnm = '" + ApplyToDocumentNumber + "' and spcldist = 0 and len(rtrim(jobnumber))>0";

I obtain the values with this code

                DataDataAdapter = new System.Data.SqlClient.SqlDataAdapter();
                DataDataAdapter.SelectCommand = DataCommand;
                DataDataAdapter.TableMappings.Add("Table", "DISTREF");

                this.txtApplyDate.DataBindings.Add("Text", DataDataSet.Tables["DISTREF"], "aplydate").ToString();
                this.txtApplyPostingDate.DataBindings.Add("Text", DataDataSet.Tables["DISTREF"], "glpostdt").ToString();

It is the last two lines where I am stumped. I want the format of the dates to be MM/dd/yyyy.  When I try
                this.txtApplyDate.DataBindings.Add("Text", DataDataSet.Tables["DISTREF"], "aplydate").ToString("MM/dd/yyyy")
I receive an error.

What is the correct way to format these date fields?