Add project files.

ConstructorAppUI/Views/ProjectGallery/CreateProjectGallery.cshtml

@@ -0,0 +1,25 @@
+@model int // ProjectID
+@{
+    ViewData["Title"] = "CreateProjectGallery";
+    Layout = "~/Views/AdminLayout/Index.cshtml";
+}
+
+<form asp-action="CreateProjectGallery" asp-controller="ProjectGallery" method="post" enctype="multipart/form-data">
+
+    <div class="form-group">
+        <label>Proje Seçiniz:</label>
+        <select asp-items="ViewBag.ProjectList" class="form-control" name="projectId" required>
+            <option value="">-- Proje Seçiniz --</option>
+        </select>
+    </div>
+
+    <div class="form-group mt-3">
+        <label>Galeri Görselleri:</label>
+        <input type="file" name="GalleryFiles" multiple class="form-control" required />
+    </div>
+
+    <button type="submit" class="btn btn-primary">Görselleri Yükle</button>
+    <a href="/ProjectGallery/Index/" class="btn btn-warning ml-2">Listeye Dön</a>
+
+</form>
+