fix(igxCombo): combo-features sample adjustment - searchText on scroll + remoteData query

Author: ViktorSlavov

src/app/combo/combo-features/combo-features.component.ts

@@ -50,7 +50,7 @@ export class ComboFeatures {
             this.prevRequest.unsubscribe();
         }
 
-        this.prevRequest = this.remoteService.getData(this.combo2.virtualizationState, null, () => {
+        this.prevRequest = this.remoteService.getData(this.combo2.virtualizationState, this.combo2.searchValue, () => {
             this.cdr.detectChanges();
             this.combo2.triggerCheck();
         });

src/app/grid/services/remote.service.ts

@@ -39,10 +39,10 @@ export class RemoteService {
             qS += `$skip=${skip}&$top=10&$count=true&$inlinecount=allpages`;
 
             if (searchText) {
-                qS += `&$filter=substringof('` + searchText + `',ProductName)` +
-                    `&$filter=substringof('` + searchText.toLowerCase() + `',ProductName)` +
-                    `&$filter=substringof('` + searchText.toUpperCase() + `',ProductName)` +
-                    `&$filter=substringof('` + this.toTitleCase(searchText) + `',ProductName)`;
+                qS += `&$filter=substringof('` + searchText + `',ProductName)` + ` or ` +
+                    `substringof('` + searchText.toLowerCase() + `',ProductName)` + ` or ` +
+                    `substringof('` + searchText.toUpperCase() + `',ProductName)` + ` or ` +
+                    `substringof('` + this.toTitleCase(searchText) + `',ProductName)`;
             }
         }
         return `${this.url}${qS}`;