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Grid row selection - highlight the row #769 (#782)
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‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_22_Selection.razor‎ renamed to ‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_01_Selection.razor‎

File renamed without changes.

‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_23_Multiple_Selection.razor‎ renamed to ‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_02_Multiple_Selection.razor‎

File renamed without changes.

‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_24_Disable_Selection.razor‎ renamed to ‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_03_Disable_Selection.razor‎

File renamed without changes.

‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_04_A_Change_Selected_Row_Background_Color.razor‎

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<Grid TItem="Employee1"
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Class="table table-hover table-bordered"
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Style="--bb-table-selected-row-color: #fff;--bb-table-selected-row-background-color: #4c0bce;--bb-table-selected-row-hover-color: #fff;--bb-table-selected-row-hover-background-color: #4c0bce;"
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DataProvider="EmployeesDataProvider"
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AllowFiltering="true"
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AllowSelection="true"
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SelectionMode="GridSelectionMode.Multiple"
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SelectedItemsChanged="OnSelectedItemsChanged"
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Responsive="true">
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<GridColumns>
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<GridColumn TItem="Employee1" HeaderText="Id" PropertyName="Id">
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@context.Id
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Employee Name" PropertyName="Name">
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@context.Name
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Designation" PropertyName="Designation">
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@context.Designation
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="DOJ" PropertyName="DOJ">
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@context.DOJ
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Active" PropertyName="IsActive">
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@context.IsActive
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</GridColumn>
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</GridColumns>
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</Grid>
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<div class="mt-3">
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Selected Items Count: @selectedEmployees.Count
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</div>
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<div class="mt-2">
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Selected Employees:
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<ul>
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@foreach (var emp in selectedEmployees)
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{
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<li>@emp.Name</li>
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}
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</ul>
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</div>
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@code {
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private IEnumerable<Employee1> employees = default!;
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private HashSet<Employee1> selectedEmployees = new();
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private async Task<GridDataProviderResult<Employee1>> EmployeesDataProvider(GridDataProviderRequest<Employee1> request)
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{
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Console.WriteLine("EmployeesDataProvider called...");
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if (employees is null) // pull employees only one time for client-side filtering, sorting, and paging
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employees = GetEmployees(); // call a service or an API to pull the employees
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return await Task.FromResult(request.ApplyTo(employees));
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}
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private IEnumerable<Employee1> GetEmployees()
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{
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return new List<Employee1>
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{
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new Employee1 { Id = 107, Name = "Alice", Designation = "AI Engineer", DOJ = new DateOnly(1998, 11, 17), IsActive = true },
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new Employee1 { Id = 103, Name = "Bob", Designation = "Senior DevOps Engineer", DOJ = new DateOnly(1985, 1, 5), IsActive = true },
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new Employee1 { Id = 106, Name = "John", Designation = "Data Engineer", DOJ = new DateOnly(1995, 4, 17), IsActive = true },
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new Employee1 { Id = 104, Name = "Pop", Designation = "Associate Architect", DOJ = new DateOnly(1985, 6, 8), IsActive = false },
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new Employee1 { Id = 105, Name = "Ronald", Designation = "Senior Data Engineer", DOJ = new DateOnly(1991, 8, 23), IsActive = true },
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new Employee1 { Id = 102, Name = "Line", Designation = "Architect", DOJ = new DateOnly(1977, 1, 12), IsActive = true },
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new Employee1 { Id = 101, Name = "Daniel", Designation = "Architect", DOJ = new DateOnly(1977, 1, 12), IsActive = true },
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new Employee1 { Id = 108, Name = "Zayne", Designation = "Data Analyst", DOJ = new DateOnly(1991, 1, 1), IsActive = true },
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new Employee1 { Id = 109, Name = "Isha", Designation = "App Maker", DOJ = new DateOnly(1996, 7, 1), IsActive = true },
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};
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}
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private Task OnSelectedItemsChanged(HashSet<Employee1> employees)
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{
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selectedEmployees = employees is not null && employees.Any() ? employees : new();
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return Task.CompletedTask;
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}
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}

‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Demo_04_B_Selected_Row_CSS_Variables.razor‎

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--bb-table-selected-row-color: rgba(0, 0, 0, 0.0725);
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--bb-table-selected-row-background-color: rgba(0, 0, 0, 0.075);
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--bb-table-selected-row-hover-color: #000;
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--bb-table-selected-row-hover-background-color: rgba(0, 0, 0, 0.075);

‎BlazorBootstrap.Demo.RCL/Components/Pages/Grid/06-selection/Grid_Selection_Documentation.razor‎

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Set <code>AllowSelection="true"</code> to enable the selection on the <code>Grid</code>.
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By default, <code>SelectionMode</code> is <b>Single</b>.
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</div>
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<Demo Type="typeof(Grid_Demo_22_Selection)" Tabs="true" />
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<Demo Type="typeof(Grid_Demo_01_Selection)" Tabs="true" />
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<SectionHeading Size="HeadingSize.H2" Text="Multiple Selection" PageUrl="@pageUrl" HashTagName="multiple-selection" />
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<div class="mb-3">
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To select multiple rows, set <code>SelectionMode="GridSelectionMode.Multiple"</code>.
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</div>
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<Demo Type="typeof(Grid_Demo_23_Multiple_Selection)" Tabs="true" />
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<Demo Type="typeof(Grid_Demo_02_Multiple_Selection)" Tabs="true" />
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<Callout Color="CalloutColor.Danger" Heading="Note">
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<p>Selected items are removed from the selection if they are not rendered after paging, sorting, filtering, etc.</p>
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</Callout>
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For this, we have <code>DisableAllRowsSelection</code> and <code>DisableRowSelection</code> delegate parameters. In the below example, we disabled the header checkbox if any of the employee Id is less than 105.
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Also, disable check the row level checkbox if the employee Id is less than 105.
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</div>
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<Demo Type="typeof(Grid_Demo_24_Disable_Selection)" Tabs="true" />
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<Demo Type="typeof(Grid_Demo_03_Disable_Selection)" Tabs="true" />
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<SectionHeading Size="HeadingSize.H2" Text="Change selected row background color" PageUrl="@pageUrl" HashTagName="change-selected-row-background-color" />
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<Demo Type="typeof(Grid_Demo_04_B_Selected_Row_CSS_Variables)" ShowCodeOnly="true" LanguageCode="LanguageCode.Css" />
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<div class="mb-3">
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These CSS variables are used to set the default colors and background color of a row when it's selected.
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You can override the <Badge>--bb-table-selected-row-color</Badge>, <Badge>--bb-table-selected-row-background-color</Badge>, <Badge>--bb-table-selected-row-hover-color</Badge>, and <Badge>--bb-table-selected-row-hover-background-color</Badge> variables in the application's specific CSS file to change the selected row's appearance. Please see the following example where the row text color is set to #fff (white) and the background color is set to #4c0bce (purple) when the row is selected.
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</div>
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<Demo Type="typeof(Grid_Demo_04_A_Change_Selected_Row_Background_Color)" Tabs="true" />
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@code {
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private const string pageUrl = "/grid/selection";

‎BlazorBootstrap.Demo.RCL/Components/Shared/Demo.razor‎

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{
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<div class="bd-example-snippet bd-code-snippet">
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<div class="d-flex align-items-center highlight-toolbar px-4 py-2 border">
8-
<small class="font-monospace text-body-secondary text-uppercase">razor</small>
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<small class="font-monospace text-body-secondary text-uppercase">@LanguageCode.ToLanguageCodeString()</small>
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<div class="d-flex ms-auto">
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<Tooltip Title="@clipboardTooltipTitle" role="button" @onclick="CopyToClipboardAsync">
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<Icon Name="@clipboardTooltipIconName" Color="@clipboardTooltipIconColor" />
@@ -31,7 +31,7 @@ else if (!Tabs)
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<DynamicComponent Type="this.Type"/>
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</div>
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<div class="d-flex align-items-center highlight-toolbar px-4 py-2 border border-top-0">
34-
<small class="font-monospace text-body-secondary text-uppercase">razor</small>
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<small class="font-monospace text-body-secondary text-uppercase">@LanguageCode.ToLanguageCodeString()</small>
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<div class="d-flex ms-auto">
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<Tooltip Title="@clipboardTooltipTitle" role="button" @onclick="CopyToClipboardAsync">
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<Icon Name="@clipboardTooltipIconName" Color="@clipboardTooltipIconColor" />

‎BlazorBootstrap.Demo.RCL/Components/Shared/Extensions/EnumExtensions.cs‎

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{
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LanguageCode.AspNet => "language-aspnet",
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LanguageCode.CSharp => "language-csharp",
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LanguageCode.Css => "language-css",
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LanguageCode.HTML => "language-html",
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LanguageCode.JavaScript => "language-js",
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LanguageCode.JSON => "language-json",
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LanguageCode.JSONP => "language-jsonp",
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LanguageCode.YAML => "language-yaml",
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_ => null
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};
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public static string? ToLanguageCodeString(this LanguageCode languageCode) =>
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languageCode switch
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{
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LanguageCode.AspNet => "ASP.NET",
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LanguageCode.CSharp => "C#",
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LanguageCode.Css => "CSS",
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LanguageCode.HTML => "HTML",
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LanguageCode.JavaScript => "JS",
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LanguageCode.JSON => "JSON",
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LanguageCode.JSONP => "JSONP",
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LanguageCode.Markdown => "Markdown",
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LanguageCode.PowerShell => "PowerShell",
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LanguageCode.Razor => "Razor",
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LanguageCode.Text => "Text",
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LanguageCode.YAML => "yaml",
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_ => null
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};
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}

‎blazorbootstrap/wwwroot/blazor.bootstrap.css‎

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/* table */
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--bb-table-sticky-background-color: #fff;
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--bb-table-freeze-column-background-color: #efefef;
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--bb-table-selected-row-color: #000;
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--bb-table-selected-row-hover-color: #000;
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--bb-table-selected-row-background-color: rgba(0,0,0,0.075);
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--bb-table-selected-row-hover-background-color: rgba(0,0,0,0.075);
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/* callout */
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--bb-callout-link: 10, 88, 202;
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--bb-callout-code-color: #ab296a;
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--bs-table-bg: inherit !important;
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}
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.bb-table tr:has(input[type=checkbox]:checked) {
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color: var(--bb-table-selected-row-color);
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background-color: var(--bb-table-selected-row-background-color);
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}
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.bb-table tr:has(input[type=checkbox]:checked):hover,
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.bb-table tr:has(input[type=checkbox]:checked):hover > * {
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color: var(--bb-table-selected-row-hover-color);
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background-color: var(--bb-table-selected-row-hover-background-color);
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}
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.bb-table-sticky {
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border-collapse: collapse;
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border-spacing: 0;

‎docs/docs/05-components/grid.mdx‎

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[See demo here](https://demos.blazorbootstrap.com/grid/selection#disable-selection)
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### Change selected row background color
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```css
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--bb-table-selected-row-color: rgba(0, 0, 0, 0.0725);
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--bb-table-selected-row-background-color: rgba(0, 0, 0, 0.075);
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--bb-table-selected-row-hover-color: #000;
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--bb-table-selected-row-hover-background-color: rgba(0, 0, 0, 0.075);
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```
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These CSS variables are used to set the default colors and background color of a row when it's selected.
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You can override the `--bb-table-selected-row-color`, `--bb-table-selected-row-background-color`, `--bb-table-selected-row-hover-color`, and `--bb-table-selected-row-hover-background-color` variables in the application's specific CSS file to change the selected row's appearance.
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Please see the following example where the row text color is set to **#fff (white)** and the background color is set to **#4c0bce (purple)** when the row is selected.
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<img src="https://i.imgur.com/64kqzO6.png" alt="Blazor Bootstrap: Grid Component - Change selected row background color" />
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```cshtml {} showLineNumbers
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<Grid TItem="Employee1"
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Class="table table-hover table-bordered"
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Style="--bb-table-selected-row-color: #fff;--bb-table-selected-row-background-color: #4c0bce;--bb-table-selected-row-hover-color: #fff;--bb-table-selected-row-hover-background-color: #4c0bce;"
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DataProvider="EmployeesDataProvider"
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AllowFiltering="true"
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AllowSelection="true"
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SelectionMode="GridSelectionMode.Multiple"
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SelectedItemsChanged="OnSelectedItemsChanged"
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Responsive="true">
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<GridColumns>
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<GridColumn TItem="Employee1" HeaderText="Id" PropertyName="Id">
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@context.Id
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Employee Name" PropertyName="Name">
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@context.Name
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Designation" PropertyName="Designation">
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@context.Designation
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="DOJ" PropertyName="DOJ">
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@context.DOJ
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</GridColumn>
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<GridColumn TItem="Employee1" HeaderText="Active" PropertyName="IsActive">
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@context.IsActive
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</GridColumn>
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</GridColumns>
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</Grid>
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<div class="mt-3">
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Selected Items Count: @selectedEmployees.Count
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</div>
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<div class="mt-2">
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Selected Employees:
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<ul>
2206+
@foreach (var emp in selectedEmployees)
2207+
{
2208+
<li>@emp.Name</li>
2209+
}
2210+
</ul>
2211+
</div>
2212+
```
2213+
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```cs {} showLineNumbers
2215+
@code {
2216+
private IEnumerable<Employee1> employees = default!;
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2218+
private HashSet<Employee1> selectedEmployees = new();
2219+
2220+
private async Task<GridDataProviderResult<Employee1>> EmployeesDataProvider(GridDataProviderRequest<Employee1> request)
2221+
{
2222+
Console.WriteLine("EmployeesDataProvider called...");
2223+
2224+
if (employees is null) // pull employees only one time for client-side filtering, sorting, and paging
2225+
employees = GetEmployees(); // call a service or an API to pull the employees
2226+
2227+
return await Task.FromResult(request.ApplyTo(employees));
2228+
}
2229+
2230+
private IEnumerable<Employee1> GetEmployees()
2231+
{
2232+
return new List<Employee1>
2233+
{
2234+
new Employee1 { Id = 107, Name = "Alice", Designation = "AI Engineer", DOJ = new DateOnly(1998, 11, 17), IsActive = true },
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new Employee1 { Id = 103, Name = "Bob", Designation = "Senior DevOps Engineer", DOJ = new DateOnly(1985, 1, 5), IsActive = true },
2236+
new Employee1 { Id = 106, Name = "John", Designation = "Data Engineer", DOJ = new DateOnly(1995, 4, 17), IsActive = true },
2237+
new Employee1 { Id = 104, Name = "Pop", Designation = "Associate Architect", DOJ = new DateOnly(1985, 6, 8), IsActive = false },
2238+
new Employee1 { Id = 105, Name = "Ronald", Designation = "Senior Data Engineer", DOJ = new DateOnly(1991, 8, 23), IsActive = true },
2239+
new Employee1 { Id = 102, Name = "Line", Designation = "Architect", DOJ = new DateOnly(1977, 1, 12), IsActive = true },
2240+
new Employee1 { Id = 101, Name = "Daniel", Designation = "Architect", DOJ = new DateOnly(1977, 1, 12), IsActive = true },
2241+
new Employee1 { Id = 108, Name = "Zayne", Designation = "Data Analyst", DOJ = new DateOnly(1991, 1, 1), IsActive = true },
2242+
new Employee1 { Id = 109, Name = "Isha", Designation = "App Maker", DOJ = new DateOnly(1996, 7, 1), IsActive = true },
2243+
};
2244+
}
2245+
2246+
private Task OnSelectedItemsChanged(HashSet<Employee1> employees)
2247+
{
2248+
selectedEmployees = employees is not null && employees.Any() ? employees : new();
2249+
return Task.CompletedTask;
2250+
}
2251+
}
2252+
```
2253+
2254+
21532255
### Dynamic page size
21542256

21552257
<img src="https://user-images.githubusercontent.com/2337067/239613002-c7b4b6f6-be67-4f14-accc-b3dd390eb0f9.png" alt="Blazor Bootstrap: Grid Component - Dynamic page size" />

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