diff --git a/src/MatBlazor.Demo/Demo/DemoTable.razor b/src/MatBlazor.Demo/Demo/DemoTable.razor
index f36474a4..0379e3ff 100644
--- a/src/MatBlazor.Demo/Demo/DemoTable.razor
+++ b/src/MatBlazor.Demo/Demo/DemoTable.razor
@@ -3,7 +3,14 @@
 <h5 class="mat-h5">Example</h5>
 <DemoContainer>
     <Content>
-        <MatTable Items="@cars" class="mat-elevation-z5">
+        <MatTable Items="@cars" class="mat-elevation-z5" OnRowsGenerating="() => TestRowGenerating()">
+            <MatColGroup>
+                <colgroup>
+                    <col span="1" style="width: 60%;">
+                    <col span="1" style="width: auto;">
+                    <col span="1" style="width: auto;">
+                </colgroup>
+            </MatColGroup>
             <MatTableHeader>
                 <th>Name</th>
                 <th>Price</th>
@@ -18,6 +25,10 @@
 
         @code
         {
+            void TestRowGenerating()
+            {
+                System.Diagnostics.Debug.WriteLine("RowGenerating called successful.");
+            }
 
             public class Car
             {
@@ -49,7 +60,14 @@
     </Content>
     <SourceContent>
     	<BlazorFiddle Template="MatBlazor" Code=@(@"
-        <MatTable Items=""@cars"" class=""mat-elevation-z5"">
+        <MatTable Items=""@cars"" class=""mat-elevation-z5"" OnRowsGenerating=""() => TestRowGenerating()"">
+            <MatColGroup>
+                <colgroup>
+                    <col span=""1"" style=""width: 60%;"">
+                    <col span=""1"" style=""width: auto;"">
+                    <col span=""1"" style=""width: auto;"">
+                </colgroup>
+            </MatColGroup>
             <MatTableHeader>
                 <th>Name</th>
                 <th>Price</th>
@@ -90,6 +108,12 @@
                 new Car(""Ford Mondeo"", 16000, 120),
             };
 
+            void TestRowGenerating()
+            {
+                System.Diagnostics.Debug.WriteLine(""RowGenerating called successful."");
+            }
+
+
         }
 
     ")></BlazorFiddle>
diff --git a/src/MatBlazor/Components/MatTable/MatTable.razor b/src/MatBlazor/Components/MatTable/MatTable.razor
index 8cfbf12c..fdf03291 100644
--- a/src/MatBlazor/Components/MatTable/MatTable.razor
+++ b/src/MatBlazor/Components/MatTable/MatTable.razor
@@ -14,6 +14,7 @@
 }
 <CascadingValue Value="@this">
     <table class="@ClassMapper.AsString()" style="@StyleMapper.AsString()" @ref="Ref" @attributes="Attributes" Id="@Id">
+        @MatColGroup
         <thead>
             @if (UseSortHeaderRow)
             {
@@ -27,6 +28,7 @@
         <tbody>
             @if (ItemList != null)
             {
+                @CallRowGenerating()
                 @foreach (var item in ItemList)
                 {
                     <TableRow Class="@RowClass"
@@ -109,6 +111,10 @@
     [Parameter]
     public RenderFragment<TableItem> MatTableRow { get; set; }
 
+    [Parameter]
+    public RenderFragment MatColGroup { get; set; }
+
+
     /// <summary>
     /// Not Functioning
     /// </summary>
@@ -123,6 +129,9 @@
 
     protected IEnumerable<TableItem> ItemList { get; set; }
 
+    [Parameter]
+    public Action OnRowsGenerating { get; set; }
+
     private string[] FilteredColumns => FilterByColumnName?.Split(";") ?? Array.Empty<string>();
 
     protected override async Task OnInitializedAsync()
@@ -154,7 +163,7 @@
             if (PageSize <= 0)
                 PageSize = 5;
         }
-        
+
         StartPage = 1;
         CurrentPage = StartPage;
 
@@ -458,7 +467,7 @@
 
         foreach (var item in items)
         {
-            var values = properties.Where(x => x.GetValue(item, null).ToString() != null).Select(x => x.GetValue(item, null).ToString());
+            var values = properties.Where(x => x.GetValue(item, null)?.ToString() != null).Select(x => x.GetValue(item, null).ToString());
 
             if (!values.Any())
             {
@@ -474,4 +483,9 @@
         return filteredCollection;
     }
 
+    string CallRowGenerating()
+    {
+        OnRowsGenerating?.Invoke();
+        return "";
+    }
 }