<br><b>Code</b>: rsb:print<br><b>Error</b>: Formatter [ rootadoname ] failed in the evaluation of <p> Blazor ??.NET ???????????????Web UI ??????????????????JavaScript ?????C# ?????UI ???????????????????.NET ??????.NET ???????????????????????</p> <p> [company_name] ADO.NET Provider for [service] ??LINQ ?Entity Framework ??????ADO.NET ????????????[service] ??????????Blazor ?.NET Core ??????????Blazor ??ADO.NET Provider ??????????????????Blazor ??[service] ???????SQL ????????????????? </p> <img src="../articles/ado-blazor-1.png" title="Blazor ?ADO.NET Provider ??????"/> <h2>[company_name] ADO.NET Provider for [service] ???????</h2> <p>CData ADO.NET Provider ????????RDB ??????????????? ADO.NET DataAdapter ?LinqToSQL(????Dapper ???ORM ?????????)????[service] ??????RDB ??????????????????</p> <p>CData ?Website ??Provider ????????????????????????NuGet ??????????????????[Service] ADO.NET Data Provider ??????????</p> <img src="../articles/ado-blazor-2.png" title="NuGet ?ADO.NET [service] Provider ???????"/> <h2>Blazor ?[service] ??????????????</h2> <h3>Blazor ?ADO.NET Provider for [service] ???</h3> <ul> <li>Visual Studio ???????Blazor ?????????????????</li> <img src="../articles/ado-blazor-3.png" title="Blazor ??????"/> <li>?????????????????????????????????????????????????</li> <li>????????????????????????????????????????ADO.NET Provider ?.dll ????????C:\Program Files\CData\CData ADO.NET Provider for [rootadoname] 2019J\lib\netstandard2.0???System.Data.CData.[rootadoname].dll??????????</li> <img src="../articles/ado-blazor-4.png" title="ADO.NET for [service] ?.dll ?Blazor ???????"/> </ul> <h3>Blazor ?[service] ????SELECT </h3> <p>????????????Page???Index.razor???????</p> <p>????????????????????????????SQL ???[service] ???API ???????RDB ?????SQL ????????ADO.NET Prover for [service] ??????<br> <pre> <code lang=csharp> @page "/" @using System.Data; @using System.Data.CData.[rootadoname]; <h1>Hello, world!</h1> Welcome to your Data app. <div class="row"> <div class="col-12"> @using ([rootadoname]Connection connection = new [rootadoname]Connection( "[extraconnectionprops]. The error was: The value of the attribute could not be accessed: The attribute does not exist.<br><b>URL</b>: /jp/kb/tech/adp-ado-blazor.rst