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chore(grid):sample project with dapper (#129)
* chore(grid):sample project with dapper * Update grid/dapper/README.md Co-authored-by: Dimo Dimov <961014+dimodi@users.noreply.github.com> Co-authored-by: Dimo Dimov <961014+dimodi@users.noreply.github.com>
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‎grid/dapper/.gitignore

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CornixLoggerFunctions20210416162430 - Zip Deploy.pubxml

‎grid/dapper/README.md

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# TelerikBlazorGrid-Dapper
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Demonstrates a Telerik Grid in Blazor, using the OnRead event along with Dapper and Dapper.SqlBuilder, to generate your SQL queries on the fly supporting most aspects of Telerik Grid.
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Telerik Grid works nicely with Entity Framework, you can use `.ToDataSourceResultAsync()` and everything for sorting etc happens on the database. If you are using Dapper you can use that, however as Dapper doesn't return an IQueryable, you will be fetching the entire dataset and then filtering, paging and sorting in code, rather than on your database.
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**Special thanks to @pingu2k4 for the sample.**
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## Features
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- [x] Paging
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- [x] Sorting
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- [x] Filtering
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- [ ] Grouping
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- [ ] Aggregate Information
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## Setup
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1. Open the project, right click on the `TelerikBlazorGrid.SqlDB.sqlproj` file and then `Import` -> `Script(*.sql)`
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2. Click **Next** on the window that popped
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3. After that, choose **Multiple files** and click **Browse...**
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![third step screenshot](images/third-step.png)
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4. Select the **Scripts** folder in the project and click **Finish**
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![fourth step screenshot](images/fourth-step.png)
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5. Right click again on the `TelerikBlazorGrid.SqlDB.sqlproj` file and then `Publish...`
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6. Click **Edit** in the popped window
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7. Type **Server Name** and **User Name** from your SQL Server
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![seventh step screenshot](images/seventh-step.png)
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8. Copy the generated connection string and close the window
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![eighth step screenshot](images/eighth-step.png)
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9. Paste the connection string in the `appsettings.Development.json` file and you are ready to go
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## The Magic
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If you are looking for where the majority of the code that performs this is held, take a look at `TelerikBlazorGrid_Dapper.DataAccess.Extensions.SqlBuilderExtensions`. We build up 2 sql templates, one for the query to get our data, and another to query the total count.
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By default, you should only need to provide this method the table (or view) name you wish to query. However there are instances where you wish to query a different table or view for both the data selection and the count - For example where you have a view containing a join as the count will become inaccurate, counting all the duplicate rows.
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You may also specify a different default sort field and direction.
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## The Result
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This picture shows the end result. A table with full sort, filter and paging functionality - Using OnRead through dapper, and passing the handling of all the Grid functionalities over to the database.
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![dapper grid](images/dapper-grid.png)
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## Disclaimer
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Integration with Dapper is not subject to technical support by Progress.

‎grid/dapper/dapper/TelerikBlazorGrid-Dapper.Blazor/App.razor

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<Router AppAssembly="@typeof(Program).Assembly" PreferExactMatches="@true">
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<Found Context="routeData">
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<RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
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</Found>
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<NotFound>
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<LayoutView Layout="@typeof(MainLayout)">
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<p>Sorry, there's nothing at this address.</p>
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</LayoutView>
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</NotFound>
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</Router>

‎grid/dapper/dapper/TelerikBlazorGrid-Dapper.Blazor/Pages/Error.cshtml

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@page
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@model TelerikBlazorGrid_Dapper.Blazor.Pages.ErrorModel
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
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<title>Error</title>
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<link href="~/css/bootstrap/bootstrap.min.css" rel="stylesheet" />
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<link href="~/css/app.css" rel="stylesheet" />
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</head>
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<body>
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<div class="main">
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<div class="content px-4">
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<h1 class="text-danger">Error.</h1>
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<h2 class="text-danger">An error occurred while processing your request.</h2>
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@if (Model.ShowRequestId)
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{
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<p>
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<strong>Request ID:</strong> <code>@Model.RequestId</code>
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</p>
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}
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<h3>Development Mode</h3>
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<p>
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Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
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</p>
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<p>
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<strong>The Development environment shouldn't be enabled for deployed applications.</strong>
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It can result in displaying sensitive information from exceptions to end users.
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For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
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and restarting the app.
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</p>
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</div>
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</div>
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</body>
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</html>

‎grid/dapper/dapper/TelerikBlazorGrid-Dapper.Blazor/Pages/Error.cshtml.cs

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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using Microsoft.Extensions.Logging;
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Threading.Tasks;
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namespace TelerikBlazorGrid_Dapper.Blazor.Pages
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{
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[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
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[IgnoreAntiforgeryToken]
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public class ErrorModel : PageModel
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{
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public string RequestId { get; set; }
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public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
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private readonly ILogger<ErrorModel> _logger;
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public ErrorModel(ILogger<ErrorModel> logger)
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{
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_logger = logger;
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}
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public void OnGet()
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{
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RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
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}
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}
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}

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