From ccc82e5a61b8e7d778e773fe76754fb6df484fe0 Mon Sep 17 00:00:00 2001
From: Vladimir Enchev <vladimir.enchev@gmail.com>
Date: Mon, 2 Sep 2024 14:08:43 +0300
Subject: [PATCH] DropDownDataGrid @bind-SelectedItem can cause endless loop in
 some cases

---
 Radzen.Blazor/RadzenDropDownDataGrid.razor.cs | 21 ++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/Radzen.Blazor/RadzenDropDownDataGrid.razor.cs b/Radzen.Blazor/RadzenDropDownDataGrid.razor.cs
index 2fbc6aa2eed..f86d2f2e1dc 100644
--- a/Radzen.Blazor/RadzenDropDownDataGrid.razor.cs
+++ b/Radzen.Blazor/RadzenDropDownDataGrid.razor.cs
@@ -555,21 +555,32 @@ protected override void SelectItemFromValue(object value)
             {
                 if (!Multiple)
                 {
+                    bool raiseChange = false;
+
                     if (!string.IsNullOrEmpty(ValueProperty))
                     {
                         var item = Query.Where(DynamicLinqCustomTypeProvider.ParsingConfig, $@"{ValueProperty} == @0", value).FirstOrDefault();
-                        if (item != null)
+                        if (item != null && SelectedItem != item)
                         {
                             SelectedItem = item;
+                            raiseChange = true;
                         }
                     }
                     else
                     {
-                        SelectedItem = internalValue;
+                        if (SelectedItem != internalValue)
+                        {
+                            SelectedItem = internalValue;
+                            raiseChange = true;
+                        }
+                    }
+
+                    if (raiseChange)
+                    {
+                        SelectedItemChanged.InvokeAsync(SelectedItem);
+                        selectedItems.Clear();
+                        selectedItems.Add(SelectedItem);
                     }
-                    SelectedItemChanged.InvokeAsync(SelectedItem);
-                    selectedItems.Clear();
-                    selectedItems.Add(SelectedItem);
                 }
                 else
                 {