[4.1] docs(selects): add refresh method for selects

_contentTemplates/dropdowns/methods.md

@@ -6,4 +6,5 @@
 | `Close` | Closes the popup. |
 | `FocusAsync` | Focuses the main element of the component. Always `await` this call, as it relies on `JSInterop`. |
 | `Open` | Opens the popup. |
+| `Refresh` | Re-renders the component popup. |
 #end

components/autocomplete/overview.md

@@ -151,6 +151,8 @@ Add a reference to the component instance to use the [AutoComplete's methods](/b
     private void OpenPopup()
     {
         AutoCompleteRef.Open();
+
+        AutoCompleteRef.Refresh();
     }
 }
 ````

components/combobox/overview.md

@@ -151,6 +151,10 @@ Add a reference to the component instance to use the [ComboBox's methods](/blazo
     private void OpenPopup()
     {
         ComboBoxRef.Open();
+
+        ComboBoxValue = Suggestions.First();
+
+        ComboBoxRef.Refresh();
     }
 }
 ````

components/dropdownlist/overview.md

@@ -136,7 +136,7 @@ Add a reference to the component instance to use the [DropDownList's methods](/b
 <TelerikDropDownList @ref="@DropDownListRef"
                      Data="@DropDownListData"
                      @bind-Value="@DropDownListValue"
-                     Width="300px"/>
+                     Width="300px" />
 
 <TelerikButton OnClick="@OpenPopup">Open Popup</TelerikButton>
 
@@ -150,6 +150,10 @@ Add a reference to the component instance to use the [DropDownList's methods](/b
     private void OpenPopup()
     {
         DropDownListRef.Open();
+
+        DropDownListValue = DropDownListData.First();
+
+        DropDownListRef.Refresh();
     }
 }
 ````

components/multicolumncombobox/overview.md

@@ -179,6 +179,7 @@ The table below lists the MultiComboBox methods. Also consult the [MultiColumnCo
 | `FocusAsync` | Focuses the component textbox. |
 | `Open` | Opens the component dropdown. |
 | `Rebind` | [Refreshes the component data]({%slug common-features-data-binding-overview%}#refresh-data). |
+| `Refresh` | Re-renders the component popup. |
 
 >caption Using MultiColumnComboBox methods
 
@@ -207,18 +208,22 @@ The table below lists the MultiComboBox methods. Also consult the [MultiColumnCo
     private void Open()
     {
         MultiColumnComboRef.Open();
+
+        SelectedProduct = 3;
+
+        MultiColumnComboRef.Refresh();
     }
 
     protected override void OnInitialized()
     {
         var rnd = new Random();
 
         Products = Enumerable.Range(1, 30).Select(x => new Product()
-        {
-            Id = x,
-            Name = $"Product {x}",
-            Quantity = rnd.Next(0, 30)
-        }).ToList();
+            {
+                Id = x,
+                Name = $"Product {x}",
+                Quantity = rnd.Next(0, 30)
+            }).ToList();
 
         base.OnInitialized();
     }

components/multiselect/overview.md

@@ -167,6 +167,10 @@ Add a reference to the component instance to use the [MultiSelect's methods](/bl
     private void OpenPopup()
     {
         MultiSelectRef.Open();
+
+        MultiSelectValue = new List<string>() { MultiSelectData.First() };
+
+        MultiSelectRef.Refresh();
     }
 }
 ````