asp.net core webapp\u3067\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u306b\u306f\u3001\u4e00\u822c\u7684\u306aHTML\u3068\u540c\u69d8\u3001form\u30bf\u30b0\u306benctype=”multipart\/form-data”\u3092\u4ed8\u3051\u3001<input type=”file”>\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u672c\u4f53\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u3002<\/p>\n\n\n\n
<form enctype="multipart\/form-data" method="post">\n\t\u30fb\u30fb\u30fb\n\t\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30d5\u30a1\u30a4\u30eb\uff1a<input type="file" name="fupFile"\/>\n\t<button class="btn btn-primary" type="submit">\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9<\/button>\n<\/form><\/code><\/pre><\/div>\n\n\n\n\u53d7\u53d6\u5074\u306f\u3001IFormFile\u30af\u30e9\u30b9\u3092\u6307\u5b9a\u3057\u3066\u3001\u5f15\u6570\u3068\u3057\u3066\u53d7\u53d6\u308b\u3053\u3068\u304c\u53ef\u80fd\u3002<\/p>\n\n\n\n
public async Task OnPost([FromForm]IFormFile fupFile) {\n\n \u30fb\u30fb\u30fb\n Stream stm = fupFile.OpenReadStream();\n\t\/\/ \u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3059\u308b\u51e6\u7406\n\t\u30fb\u30fb\u30fb\n}<\/code><\/pre><\/div>\n\n\n\n\u307e\u3060\u8a66\u3057\u3066\u3044\u306a\u3044\u304c\u3001Blazor\u306e\u5834\u5408\u306f\u5c11\u3005\u7570\u306a\u308a\u3001<InputFile>\u30bf\u30b0\u3068\u305d\u306e\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3067\u51e6\u7406\u304c\u3067\u304d\u308b\u3088\u3046\u3060\u3002<\/p>\n\n\n\n
\u30fb\u30fb\u30fb\n<InputFile OnChange="@OnInputFileChange"\/>\n\u30fb\u30fb\u30fb\n@code {\n\t\u30fb\u30fb\u30fb\n\tprotected void OnInputFileChange(InputFileChangeEventArgs e) {\n\t\tStream stm = e.File.OpenReadStream();\n\t\t\/\/ \u30d5\u30a1\u30a4\u30eb\u51e6\u7406\n\t}\n}<\/code><\/pre><\/div>\n\n\n\n\u3061\u306a\u307f\u306b\u3001webapp\u4e2d\u306e\u30cf\u30f3\u30c9\u30e9\u3067\u52d5\u7684\u306b\u4f5c\u6210\u3057\u305f\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3060\u304c\u3001ASP.NET\u3067\u4f7f\u3063\u3066\u3044\u305f\u65b9\u6cd5\u3067\u306f\u3001\u30df\u30c9\u30eb\u30a6\u30a7\u30a2\u306e\u305b\u3044\u3067\u5b9f\u884c\u6642\u30a8\u30e9\u30fc(Response\u30d8\u30c3\u30c0\u306f\u4e0a\u66f8\u304d\u7981\u6b62)\u304c\u51fa\u3066\u3001\u52d5\u4f5c\u3057\u306a\u304b\u3063\u305f\u3002<\/p>\n\n\n\n
\u8272\u3005\u8a66\u3057\u3066\u307f\u3066\u3001\u7d50\u5c40MVC(FileContentResult\u3092\u8fd4\u3059)\u3092\u4e00\u90e8\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u304c\u3001\u4ed6\u306b\u65b9\u6cd5\u306f\u306a\u3044\u3082\u306e\u3060\u308d\u3046\u304b\u30fb\u30fb\u30fb<\/p>\n\n\n\n
@{\n\tDictionary<string,string> prm = new Dictionary<string,string>() {\n\t\t{"Query" : Model.Query}\n\t};\n}\n\u30fb\u30fb\u30fb\n<button class="btn btn-primary" asp-controller="[\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9]" asp-action="Download" asp-asp-all-route-data="prm">\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/button><\/code><\/pre><\/div>\n\n\n\npublic async Task<FileContentResult> Download(string Query) {\n\t\u30fb\u30fb\u30fb\n\tMemoryStream stm = new MemoryStream();\n\t\/\/ MemoryStream\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u51e6\u7406\n\t\u30fb\u30fb\u30fb\n\tbyte[] buff = stm.ToArray();\n return new FileContentResult(\n buff,\n "application\/octet-stream"\n ) {\n FileDownloadName = filename\n };\n}<\/code><\/pre><\/div>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
asp.net core webapp\u3067\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u306b\u306f\u3001 … \u7d9a\u304d\u3092\u8aad\u3080