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On this page
  • «Home» papkasi
  • «Shared» papkasi
  • _ViewImports.cshtml fayli
  • _ViewStart.cshtml fayli

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  1. C# / .NET
  2. Web Dasturlash
  3. ASP.NET Core MVC

View

Ravshan Sodiqov

Views Frontend dasturchilar tomonidan ishlab chiqiladigan veb sahifalar uchun foydalanuvchi interfeyslari, ya’ni ma`lumotlarni foydalanuvchilar uchun qulay dizayn asosida taqdim etadi. ASP.NET Core frameworkida ko’rinishlar asosan Razor sahifalar sifatida tasvirlanadi. Razor sahifalar - HTML sahifalarning C#, F# va VBA dasturlash tillariga mansub kodlar bilan integrallashgan shaklidir (.cshtml kengaytma ostida). Ushbu Razor sahifalarni HTML shabloniga ega dinamik veb sahifalar deb ham atash mumkin.

ASP.NET Core MVC asosida quriladigan loyihalarning veb sahifalari «Views» papkasida saqlanadi. Namunaviy holda taqdim etiladigan «Views» papkasi quyidagicha tuzilishga ega bo’ladi:

  • «Home» papkasi

  • «Shared» papkasi

  • _ViewImports.cshtml fayli

  • _ViewStart.cshtml fayli

«Home» papkasi

Ushbu papka shu nom bilan ataluvchi, ya’ni HomeController boshqaruvidagi sahifalarni o’zida saqlovchi papkadir. Agar HomeControllerda quyidagicha metodlar aniqlangan bo’lsa:

public IActionResult Index()
    {
        return View();
    }

    public IActionResult Privacy()
    {
        return View();
    }

demak «Home» papkasida ham Index.cshtml va Privacy.cshtml fayllari mavjud bo’ladi. Yuqorida controller da aniqlangan metodlar «Home» papkasida saqlanadigan ko’rinishlarni brauzerda tasvirlash uchun xizmat qiladi. Bordi-yu, «Home» papkasiga Contact.cshtml sahifasini qo’shsak-u, HomeControllerda

public  IActionResult  Contact()
{
	return View();
}

metodini yozmasak, ushbu ko’rinish brauzerda tasvirlanmaydi.

Shuni yodda tuting !

  1. Controller boshqaruvidagi barcha sahifalar «Views» papkasida ichida joylashgan, Controller nomi bilan bir xil bo’lgan papkada saqlanadi. Agar-da loyihamizning «Controllers» papkasiga AdminController ni qo’shsak, ushbu controller boshqaradigan sahifalar «Views» papkasi ichidagi «Admin» papkasida saqlanadi.

  2. Har bir ko’rinishni brauzerda aks ettirish uchun controller ichida ko’rinish nomi bilan bir xil metod aniqlanishi kerak. Aks holda ko’rinish brauzerda aks ettirilmaydi.

«Shared» papkasi

Ushbu papka quyidagicha fayllarga ega:

  • _Layout.cshtml

  • _Layout.cshtml.css

  • _ValidationScripts.cshtml

  • Error.cshtml

Ma’lumki barcha HTML shabloniga ega sahifalar bir xil ko’rinishda tasvirlanadi: <!DOCTYPE html> … va ko’pgina holatda barcha sahifalarning header va footer qismlarning dizayni ham bir xil ko’rinish kasb etadi. Biz esa loyihamizda foydalaniladigan view lardagi ushbu doim takrorlanuvchi kodlardan xalos bo’lish uchun, takrorlanuvchi kodlarni _Layout.cshtml faylida saqlaymiz.

_ViewImports.cshtml fayli

Dinamik view lar controller tomonidan yuborilgan ma’lumotlarni o’zida saqlaydi va bu ma’lumotlar odatda C# sinflari ko’rinishida bo’lishi mumkin. _ViewImports.cshtml fayli esa mana shu C# sinflarning nomlar fazo (namespace) larini o’zida saqlaydi. Odatiy holda ushbu fayl quyidagicha ko’rinishga ega bo’ladi:

@using <Loyiha_nomi>
@using <Loyiha_nomi>.Models
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

_ViewStart.cshtml fayli

Faylning nomidan ham anglab olish mumkin-ki, ushbu fayl ko’rinish qismida ilk ishga tushadigan kodni o’zida saqlaydi:

@{
    Layout = "_Layout";
}

Yuqoridagi kod har bir sahifa uchun HTML shablonini hosil qiluvchi _Layout.cshtml faylini ishga tushirishni ta’minlaydi. Shu o’rinda savol tug’ilishi mumkin. Nega endi birdaniga _Layout.cshtml faylini ishga tushirmaslik kerak ?

Sababi, barcha sahifalar <!DOCTYPE html> … kabi kod bilan boshlanishi mumkin, ammo ularning header va footer qismlarning tuzilishi va dizayni farq qilish ehtimoli ham yo’q emas. Shu sababdan avval qaysi layout viewni ishga tushirishni aniqlab, so’ng fayl ishga tushiriladi.

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Last updated 2 years ago

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