Add support for immediate changes to RadzenTextBox (enabled via Immediate=true). Closes #909.

Author: akorchev

Radzen.Blazor/RadzenTextBox.razor

@@ -1,6 +1,14 @@
 @inherits FormComponentWithAutoComplete<string>
 @if (Visible)
 {
+    @if (Immediate)
+    {
+    <input @ref="@Element" id="@GetId()" disabled="@Disabled" readonly="@ReadOnly" name="@Name" style="@Style" @attributes="Attributes" class="@GetCssClass()" tabindex="@(Disabled ? "-1" : $"{TabIndex}")"
+           placeholder="@CurrentPlaceholder" maxlength="@MaxLength" autocomplete="@AutoCompleteAttribute" aria-autocomplete="@AriaAutoCompleteAttribute" value="@Value" @oninput="@OnChange" />
+    }
+    else
+    {
     <input @ref="@Element" id="@GetId()" disabled="@Disabled" readonly="@ReadOnly" name="@Name" style="@Style" @attributes="Attributes" class="@GetCssClass()" tabindex="@(Disabled ? "-1" : $"{TabIndex}")"
            placeholder="@CurrentPlaceholder" maxlength="@MaxLength" autocomplete="@AutoCompleteAttribute" aria-autocomplete="@AriaAutoCompleteAttribute" value="@Value" @onchange="@OnChange" />
+    }
 }

Radzen.Blazor/RadzenTextBox.razor.cs

@@ -36,7 +36,13 @@ public partial class RadzenTextBox : FormComponentWithAutoComplete<string>
         public bool Trim { get; set; }
 
         /// <summary>
-        /// Handles change event of the built-in <c>input</c> elementt.
+        /// Gets or sets a value indicating whether the component should update the value immediately when the user types. Set to <c>false</c> by default.
+        /// </summary>
+        [Parameter]
+        public bool Immediate { get; set; }
+
+        /// <summary>
+        /// Handles change event of the built-in <c>input</c> element.
         /// </summary>
         protected async Task OnChange(ChangeEventArgs args)
         {

RadzenBlazorDemos/Pages/TextBoxConfig.razor

@@ -20,7 +20,7 @@
     <RadzenColumn Size="12" SizeMD="4">
         <RadzenCard>
             <RadzenText TextStyle="TextStyle.Subtitle2" TagName="TagName.H3">Change on every input</RadzenText>
-            <RadzenTextBox @oninput=@(args => OnChange(args.Value.ToString(), "TextBox with change on every input")) Style="width: 100%" aria-label="TextBox with change on every input" />
+            <RadzenTextBox Immediate="true" Change=@(value => OnChange(value, "TextBox with change on every input")) Style="width: 100%" aria-label="TextBox with change on every input" />
         </RadzenCard>
     </RadzenColumn>
     <RadzenColumn Size="12" SizeMD="4">