{"id":3160,"date":"2023-11-14T15:35:24","date_gmt":"2023-11-14T07:35:24","guid":{"rendered":""},"modified":"2023-11-14T15:35:24","modified_gmt":"2023-11-14T07:35:24","slug":"Angular Forms","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/3160.html","title":{"rendered":"Angular Forms"},"content":{"rendered":"<div class=\"titlebox\">\n<h1>Angular Forms<\/h1>\n<\/div>\n<div class=\"desc\">\n  Angular\u8868\u5355\u7528\u4e8e\u5904\u7406\u7528\u6237\u7684\u8f93\u5165\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528Angular\u8868\u5355\u6765\u4f7f\u7528\u6237\u767b\u5f55\uff0c\u66f4\u65b0\u914d\u7f6e\u6587\u4ef6\uff0c\u8f93\u5165\u4fe1\u606f\u5e76\u6267\u884c\u8bb8\u591a\u5176\u4ed6\u6570\u636e\u8f93\u5165\u4efb\u52a1\u3002\n<\/div>\n<div class=\"desc\">\n  \u5728Angular 7\u4e2d\uff0c\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5904\u7406\u7528\u6237\u901a\u8fc7\u8868\u5355\u8f93\u5165\u7684\u5185\u5bb9:\n<\/div>\n<p><span class=\"line\">Reactive forms<\/span><br \/>\n<span class=\"line\">Template-driven forms<\/span> <\/p>\n<div class=\"desc\">\n  \u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u7528\u4e8e\u4ece\u89c6\u56fe\u6536\u96c6\u7528\u6237\u8f93\u5165\u4e8b\u4ef6\uff0c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\uff0c\u521b\u5efa\u8981\u66f4\u65b0\u7684\u8868\u5355\u6a21\u578b\u548c\u6570\u636e\u6a21\u578b\u4ee5\u53ca\u63d0\u4f9b\u8ddf\u8e2a\u66f4\u6539\u7684\u65b9\u6cd5\u3002\n<\/div>\n<h2 class=\"h2\">Reactive forms\u4e0eTemplate-driven forms<\/h2>\n<div class=\"desc\">\n  \u53cd\u5e94\u5f0f\u8868\u5355\u548c\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u5bf9\u6570\u636e\u7684\u7ba1\u7406\u548c\u5904\u7406\u65b9\u5f0f\u4e0d\u540c\u3002\u6bcf\u4e2a\u90fd\u6709\u4e0d\u540c\u7684\u4f18\u52bf\u3002\n<\/div>\n<h3 class=\"h3\">Reactive forms<\/h3>\n<p><span class=\"line\">Reactive forms\u66f4\u5f3a\u5927\u3002<\/span><br \/>\n<span class=\"line\">Reactive forms\u66f4\u5177\u53ef\u4f38\u7f29\u6027\uff0c\u53ef\u91cd\u7528\u6027\u548c\u53ef\u6d4b\u8bd5\u6027\u3002<\/span><br \/>\n<span class=\"line\">\u5982\u679c\u8868\u5355\u662f\u5e94\u7528\u7a0b\u5e8f\u7684\u5173\u952e\u90e8\u5206\uff0c\u6216\u8005\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u5df2\u7ecf\u4f7f\u7528\u54cd\u5e94\u6a21\u5f0f\u6784\u5efa\uff0c\u5219\u6700\u9002\u5408\u4f7f\u7528\u5b83\u4eec\u3002\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u6700\u597d\u4f7f\u7528Reactive forms\u3002<\/span> <\/p>\n<h3 class=\"h3\">Template-driven forms<\/h3>\n<p><span class=\"line\">\u5982\u679c\u8981\u5411\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u7b80\u5355\u8868\u5355\uff0c\u6700\u597d\u4f7f\u7528Template-driven forms\u3002\u4f8b\u5982: \u7535\u5b50\u90ae\u4ef6\u5217\u8868\u6ce8\u518c\u8868\u5355\u3002<\/span><br \/>\n<span class=\"line\">Template-driven forms\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6613\u4e8e\u4f7f\u7528\uff0c\u4f46\u4e0d\u5982Reactive\u8868\u5355\u90a3\u6837\u53ef\u6269\u5c55\u3002<\/span><br \/>\n<span class=\"line\">Template-driven forms\u4e3b\u8981\u7528\u4e8e\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u975e\u5e38\u57fa\u672c\u7684\u8868\u5355\u548c\u903b\u8f91\u7684\u60c5\u51b5\u3002\u53ef\u4ee5\u8f7b\u677e\u5730\u5728\u6a21\u677f\u4e2d\u5bf9\u5176\u8fdb\u884c\u7ba1\u7406\u3002<\/span> <\/p>\n<h2 class=\"h2\">\u53cd\u5e94\u578b\u8868\u5355\u548c\u6a21\u677f\u9a71\u52a8\u578b\u8868\u5355\u4e4b\u95f4\u7684\u533a\u522b<\/h2>\n<table>\n<tbody>\n<tr>\n<td>\u6bd4\u8f83\u6307\u6570<\/td>\n<td>Reactive Forms<\/td>\n<td>Template-driven Forms<\/td>\n<\/tr>\n<tr>\n<td>\u8bbe\u7f6e(\u8868\u5355\u6a21\u578b)<\/td>\n<td>\u53cd\u5e94\u5f62\u5f0f\u66f4\u4e3a\u660e\u786e\u3002\u5b83\u4eec\u662f\u5728\u7ec4\u4ef6\u7c7b\u4e2d\u521b\u5efa\u7684\u3002<\/td>\n<td>\u6a21\u677f\u9a71\u52a8\u7684\u5f62\u5f0f\u4e0d\u592a\u660e\u786e\u3002\u5b83\u4eec\u662f\u7531\u6307\u4ee4\u521b\u5efa\u7684\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u6a21\u578b<\/td>\n<td>\u7ed3\u6784\u5316<\/td>\n<td>\u975e\u7ed3\u6784\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u9884\u6d4b\u6027<\/td>\n<td>\u540c\u6b65<\/td>\n<td>\u5f02\u6b65<\/td>\n<\/tr>\n<tr>\n<td>\u8868\u5355\u9a8c\u8bc1<\/td>\n<td>\u529f\u80fd<\/td>\n<td>\u6307\u4ee4<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u53d8\u6027<\/td>\n<td>\u4e0d\u53ef\u53d8<\/td>\n<td>\u53ef\u53d8<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u6269\u5c55\u6027<\/td>\n<td>\u4f4e\u7ea7\u522b\u7684API\u8bbf\u95ee\u6743\u9650<\/td>\n<td>\u57fa\u4e8eAPI\u7684\u62bd\u8c61<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\"h2\">\u53cd\u5e94\u5f0f\u8868\u5355\u548c\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u4e4b\u95f4\u7684\u76f8\u4f3c\u6027<\/h2>\n<div class=\"desc\">\n  \u53cd\u5e94\u5f0f\u8868\u5355\u548c\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u5171\u4eab\u4e00\u4e9b\u6784\u5efa\u57fa\u5757:\n<\/div>\n<p><span class=\"line\"> FormControl: \u7528\u4e8e\u8ddf\u8e2a\u5355\u4e2a\u8868\u5355\u63a7\u4ef6\u7684\u503c\u548c\u9a8c\u8bc1\u72b6\u6001\u3002<\/span><br \/>\n<span class=\"line\"> FormGroup: \u7528\u4e8e\u8ddf\u8e2a\u8868\u5355\u63a7\u4ef6\u96c6\u5408\u7684\u76f8\u540c\u503c\u548c\u72b6\u6001\u3002<\/span><br \/>\n<span class=\"line\"> FormArray: \u5b83\u7528\u4e8e\u8ddf\u8e2a\u8868\u5355\u63a7\u4ef6\u6570\u7ec4\u7684\u76f8\u540c\u503c\u548c\u72b6\u6001\u3002<\/span><br \/>\n<span class=\"line\"> ControlValueAccessor: \u5b83\u7528\u4e8e\u5728Angular FormControl\u5b9e\u4f8b\u548c\u672c\u673aDOM\u5143\u7d20\u4e4b\u95f4\u5efa\u7acb\u6865\u6881\u3002<\/span> <\/p>\n<h2 class=\"h2\">\u8868\u5355\u6a21\u578b\u8bbe\u7f6e<\/h2>\n<div class=\"desc\">\n  \u8868\u5355\u6a21\u578b\u8bbe\u7f6e\u7528\u4e8e\u8ddf\u8e2aAngular\u8868\u5355\u548c\u8868\u5355\u8f93\u5165\u5143\u7d20\u4e4b\u95f4\u7684\u503c\u66f4\u6539\u3002\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u793a\u4f8b\uff0c\u770b\u770b\u5982\u4f55\u5b9a\u4e49\u548c\u521b\u5efa\u8868\u5355\u6a21\u578b\u3002\n<\/div>\n<h3 class=\"h3\">\u4ee5\u53cd\u5e94\u5f0f\u5f62\u5f0f\u8bbe\u7f6e\u8868\u5355\u6a21\u578b<\/h3>\n<div class=\"desc\">\n  \u6709\u5173\u4f7f\u7528\u53cd\u5e94\u5f0f\u5f62\u5f0f\u5b9e\u73b0\u7684\u5355\u4e2a\u63a7\u4ef6\uff0c\u8bf7\u53c2\u89c1\u4e0b\u9762\u7684\u7ec4\u4ef6\uff0c\u5176\u4e2d\u5e26\u6709\u8f93\u5165\u5b57\u6bb5\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><pre class=\"language-java prettyprint linenums\">\nimport { Component } from <span class=\"brown b\">'@angular\/core'<\/span>;\nimport { FormControl } from <span class=\"brown b\">'@angular\/forms'<\/span>;\n@Component({\n  selector: <span class=\"brown b\">'app-reactive-favorite-color'<\/span>,\n  template: `\n    Favorite Color: &lt;input type=<span class=\"brown b\">\"text\"<\/span> [formControl]=<span class=\"brown b\">\"favoriteColorControl\"<\/span>&gt; `\n})\nexport <span class=\"brown b\">class <\/span>FavoriteColorComponent {\n  favoriteColorControl =<span class=\"brown b\"> new <\/span>FormControl(<span class=\"brown b\">''<\/span>);\n}<\/pre>\n<p><\/code>\n<\/div>\n<div class=\"desc\">\n  \u5728\u53cd\u5e94\u5f62\u5f0f\u4e2d\uff0c\u5f62\u5f0f\u6a21\u578b\u662f\u771f\u76f8\u7684\u6765\u6e90\u3002\u771f\u7406\u7684\u6765\u6e90\u63d0\u4f9b\u4e86\u8868\u5355\u5143\u7d20\u5728\u7ed9\u5b9a\u65f6\u95f4\u70b9\u7684\u4ef7\u503c\u548c\u5730\u4f4d\u3002\n<\/div>\n<div class=\"desc\">\n  \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u8868\u5355\u6a21\u578b\u662f FormControl \u5b9e\u4f8b\u3002\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/bianchenghao6_com\/2023-11-14-efb51301f8d34b6dbc1443fba079235b.png\"  alt='Angular Forms_https:\/\/bianchenghao6.com_\u3010Angular7 \u6559\u7a0b\u3011_\u7b2c1\u5f20' title='Angular Forms_\u3010Angular7 \u6559\u7a0b\u3011_\u7b2c1\u5f20_\u7f16\u7a0b\u597d6\u6587\u6863'\/> <\/p>\n<div class=\"desc\">\n  \u5728\u53cd\u5e94\u5f62\u5f0f\u4e2d\uff0c\u8868\u5355\u6a21\u578b\u5728\u7ec4\u4ef6\u7c7b\u4e2d\u660e\u786e\u5b9a\u4e49\u3002\u4e4b\u540e\uff0c\u53cd\u5e94\u5f0f\u8868\u5355\u6307\u4ee4(\u8fd9\u91cc\u662f: FormControlDirective)\u4f7f\u7528\u503c\u8bbf\u95ee\u5668(ControlValueAccessor\u5b9e\u4f8b)\u5c06\u73b0\u6709FormControl\u5b9e\u4f8b\u94fe\u63a5\u5230\u89c6\u56fe\u4e2d\u7684\u7279\u5b9a\u8868\u5355\u5143\u7d20\u3002\n<\/div>\n<h3 class=\"h3\">\u8868\u5355\u6a21\u578b\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u4e2d\u7684\u8bbe\u7f6e<\/h3>\n<div class=\"desc\">\n  \u4f7f\u7528\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u5b9e\u73b0\u5355\u4e2a\u63a7\u200b\u200b\u4ef6\u7684\u8f93\u5165\u5b57\u6bb5\uff0c\u8bf7\u53c2\u89c1\u4e0a\u8ff0\u76f8\u540c\u7ec4\u4ef6\u3002\n<\/div>\n<div class=\"codebox codeshow\">\n<pre class=\"pure-highlightjs\"><code class=\"null\"><pre class=\"language-java prettyprint linenums\">\nimport { Component } from <span class=\"brown b\">'@angular\/core'<\/span>;\n@Component({\n  selector: <span class=\"brown b\">'app-template-favorite-color'<\/span>,\n  template: `\n    Favorite Color: &lt;input type=<span class=\"brown b\">\"text\"<\/span> [(ngModel)]=<span class=\"brown b\">\"favoriteColor\"<\/span>&gt; `\n})\nexport <span class=\"brown b\">class <\/span>FavoriteColorComponent {\n  favoriteColor = <span class=\"brown b\">''<\/span>;\n}<\/pre>\n<p><\/code>\n<\/div>\n<div class=\"desc\">\n  \u5728\u6a21\u677f\u9a71\u52a8\u7684\u5f62\u5f0f\u4e2d\uff0c\u771f\u7406\u7684\u6765\u6e90\u662f\u6a21\u677f\u672c\u8eab\u3002\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/bianchenghao6_com\/2023-11-14-f6a32fc9d4e34d078d248e37fceaa28f.png\"  alt='Angular Forms_https:\/\/bianchenghao6.com_\u3010Angular7 \u6559\u7a0b\u3011_\u7b2c2\u5f20' title='Angular Forms_\u3010Angular7 \u6559\u7a0b\u3011_\u7b2c2\u5f20_\u7f16\u7a0b\u597d6\u6587\u6863'\/> <\/p>\n<div class=\"desc\">\n  \u8868\u5355\u6a21\u578b\u7684\u62bd\u8c61\u4fc3\u8fdb\u4e86\u7ed3\u6784\u7684\u7b80\u5316\u3002\u6a21\u677f\u9a71\u52a8\u7684\u8868\u5355\u6307\u4ee4NgModel\u4e3a\u7ed9\u5b9a\u7684\u8868\u5355\u5143\u7d20\u521b\u5efa\u548c\u7ba1\u7406FormControl\u5b9e\u4f8b\u3002\u5b83\u4e0d\u592a\u660e\u786e\uff0c\u4f46\u662f\u5220\u9664\u4e86\u5bf9\u8868\u5355\u6a21\u578b\u7684\u76f4\u63a5\u63a7\u5236\u3002\n<\/div>\n<hr>\n","protected":false},"excerpt":{"rendered":"Angular Formszh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[189],"tags":[],"class_list":["post-3160","post","type-post","status-publish","format-standard","hentry","category-angular7-jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/3160"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=3160"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/3160\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=3160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=3160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=3160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}