ASP.NET

public ReadOnlyCollection<string> ParameterValues
        {
            get
            {
                //This method first checks the current value of the ChildControlsCreated property. 
                //If this value is false, the CreateChildControls method is called. 
                this.EnsureChildControls();

                List<string> names = new List<string>();
                if (!string.IsNullOrEmpty(cName))
                {
                    for (int i = 0; i < cBList.Items.Count; i++)
                    {
                        if (cBList.Items[i].Selected)
                        {
                            names.Add(cBList.Items[i].Value);
                        }
                    }

                }
                for (int i = 0; i < cBList.Items.Count; i++)
                {
                    ListItem item = cBList.Items[i];
                    if (item.Value == cName.ToString())// The cName is the name of the column, this condition check is wrong. I have to change it to the selected values from the checkbox list and i dont know how to do that.
                    {
                        cBList.SelectedIndex = i;
                        item.Selected = true;
                    }
                }
                ReadOnlyCollection<string> result = new ReadOnlyCollection<string>(names);
                return result;
            }
        }
        [ConnectionConsumer("Input Values")]
        public void GetValues(ITransformableFilterValues values)
        {
            foreach (string val in values.ParameterValues)
            {
                //this.Provider_Values += this.Provider_Values != " " ?","+ "'" + val +"'" : "'" + val + "'" ;
               this.Provider_Values = val;
               this.Provider_Name = values.ParameterName;
               ds = new SqlDataSource();
               ds.ID = "Source ID";
               ds.ConnectionString = cString;
               ds.SelectCommand = this.SQLSelectCommand;//"select distinct " + cName + " from " + tName + " where " + this.Provider_Name+ " = '" + this.Provider_Values+ "';";
               cBList.DataTextField = cName;
               cBList.DataValueField = cName;
               cBList.DataSource = ds;
               cBList.ID = "List ID";
               cBList.Attributes.Add("onclick", "FindSelectedItems(this," + tB.ClientID + ");");
               cBList.DataBind();
        
            }
            
        }