Blazor QueryBuilder Component in WebAssembly App using Visual Studio
23 Oct 20234 minutes to read
This article provides a step-by-step instructions for building Blazor WebAssembly App with Blazor QueryBuilder component using Visual Studio.
Prerequisites
Create a Blazor WebAssembly App in Visual Studio
You can create a Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion Blazor Extension.
Install Syncfusion Blazor QueryBuilder and Themes NuGet in the App
To add Blazor QueryBuilder
component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search and install Syncfusion.Blazor.QueryBuilder and Syncfusion.Blazor.Themes. Alternatively, you can utilize the following package manager command to achieve the same.
Install-Package Syncfusion.Blazor.QueryBuilder -Version 27.1.48
Install-Package Syncfusion.Blazor.Themes -Version 27.1.48
NOTE
Syncfusion Blazor components are available in nuget.org. Refer to NuGet packages topic for available NuGet packages list with component details.
Register Syncfusion Blazor Service
Open ~/_Imports.razor file and import the Syncfusion.Blazor
and Syncfusion.Blazor.QueryBuilder
namespace.
@using Syncfusion.Blazor
@using Syncfusion.Blazor.QueryBuilder
Now, register the Syncfusion Blazor Service in the ~/Program.cs file of your Blazor WebAssembly App.
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Syncfusion.Blazor;
var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");
builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
builder.Services.AddSyncfusionBlazor();
await builder.Build().RunAsync();
....
Add stylesheet and script resources
The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Reference the stylesheet and script in the <head>
of the main page as follows:
- For Blazor WebAssembly app, include it in the ~/index.html file.
<head>
....
<link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
<script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
</head>
NOTE
Check out the Blazor Themes topic to discover various methods (Static Web Assets, CDN, and CRG) for referencing themes in your Blazor application. Also, check out the Adding Script Reference topic to learn different approaches for adding script references in your Blazor application.
Add Blazor QueryBuilder component
Add the Syncfusion Blazor QueryBuilder component in the ~/Pages/Index.razor file.
<SfQueryBuilder TValue="EmployeeDetails">
<QueryBuilderColumns>
<QueryBuilderColumn Field="EmployeeID" Label="Employee ID" Type="ColumnType.Number"></QueryBuilderColumn>
<QueryBuilderColumn Field="FirstName" Label="First Name" Type="ColumnType.String"></QueryBuilderColumn>
<QueryBuilderColumn Field="TitleOfCourtesy" Label="Title of Courtesy" Type="ColumnType.Boolean" Values="Values"></QueryBuilderColumn>
<QueryBuilderColumn Field="Title" Label="Title" Type="ColumnType.String"></QueryBuilderColumn>
<QueryBuilderColumn Field="HireDate" Label="Hire Date" Type="ColumnType.Date"></QueryBuilderColumn>
<QueryBuilderColumn Field="Country" Label="Country" Type="ColumnType.String"></QueryBuilderColumn>
<QueryBuilderColumn Field="City" Label="City" Type="ColumnType.String"></QueryBuilderColumn>
</QueryBuilderColumns>
</SfQueryBuilder>
@code {
private string[] Values = new string[] { "Mr.", "Mrs." };
public class EmployeeDetails
{
public int EmployeeID { get; set; }
public string FirstName { get; set; }
public bool TitleOfCourtesy { get; set; }
public string Title { get; set; }
public DateTime HireDate { get; set; }
public string Country { get; set; }
public string City { get; set; }
}
}
- Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. This will render the Syncfusion Blazor QueryBuilder component in your default web browser.