{"id":493,"date":"2010-04-04T16:30:34","date_gmt":"2010-04-04T08:30:34","guid":{"rendered":"http:\/\/blog.newnaw.com\/?p=493"},"modified":"2010-04-04T16:30:34","modified_gmt":"2010-04-04T08:30:34","slug":"%e5%9c%a8silverlight%e4%b8%ad%e4%b8%bauielement-visibility%e6%b7%bb%e5%8a%a0%e5%8a%a8%e7%94%bb","status":"publish","type":"post","link":"https:\/\/blog.newnaw.com\/?p=493","title":{"rendered":"\u5728Silverlight\u4e2d\u4e3aUIElement.Visibility\u6dfb\u52a0\u52a8\u753b"},"content":{"rendered":"<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Visibility\u53ef\u4ee5\u63a7\u5236UIElement\u7684\u53ef\u89c1\u6027\uff0c\u4f46\u5176\u662f\u4e00\u4e2a\u679a\u4e3e\u53d8\u91cf\uff0cmsdn\u4e2d\u8bf4\uff1a\u201c\u82e5\u8981\u5bf9\u4f5c\u4e3a\u679a\u4e3e\u7684\u503c\u8fdb\u884c\u52a8\u753b\u5904\u7406\uff0c\u5fc5\u987b\u4f7f\u7528 DiscreteObjectKeyFrame\u3002\u201d\u800c\u5173\u952e\u5e27\u52a8\u753b\u6ca1\u6cd5\u505a\u51fa\u5e73\u6ed1\u7684\u8fc7\u6e21\u6548\u679c\u3002<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u53ef\u4ee5\u5229\u7528Action\u6765\u5b9e\u73b0\u6807\u9898\u5185\u5bb9\u3002<br \/>\n1\u3001\u521b\u5efa\u4e00\u4e2a\u5e26opacity\u52a8\u753b\u7684Action\u3002<\/p>\n<pre lang=\"csharp\" line=\"1\">\nusing System.Windows;\nusing System.Windows.Interactivity;\nusing System.Windows.Media.Animation;\nusing System;\n\nnamespace SilverlightApp.Actions\n{\n    public class ToggleVisibilityAction : TargetedTriggerAction<UIElement>\n    {\n        protected override void Invoke(object parameter)\n        {\n            DoubleAnimation da = new DoubleAnimation();\n            da.Duration = new System.Windows.Duration(TimeSpan.FromSeconds(0.3));\n            Storyboard sb = new Storyboard();\n            sb.Children.Add(da);\n            Storyboard.SetTarget(da, this.Target);\n            Storyboard.SetTargetProperty(da, new PropertyPath(\"Opacity\"));\n            \n            if (this.Target.Visibility==Visibility.Visible)\n            {\n                da.To = 0;\n                sb.Begin();\n                sb.Completed += (o, e) => { this.Target.Visibility = Visibility.Collapsed; };\n            } \n            else\n            {\n                this.Target.Visibility = Visibility.Visible;\n                da.To = 1;\n                sb.Begin();\n            }\n            \n        }\n    }\n}\n<\/pre>\n<p>2\u3001xaml\u4e2d\u7528\u4e4b\uff0c\u66ff\u4ee3visibility\u5c5e\u6027\u7684\u8bbe\u7f6e\u3002UIElement1\u662f\u9700\u8981\u5207\u6362\u53ef\u89c1\u6027\u7684\u7a7a\u95f4\u7684x:Name\u3002<\/p>\n<pre lang=\"xml\" line=\"1\">\n<Button x:Name=\"btn1\"  Content=\"\u70b9\u6211\u6709\u52a8\u753b\u6548\u679c\">\n      <i:Interaction.Triggers>\n               <i:EventTrigger EventName=\"Click\">\n                     <actions:ToggleVisibilityAction TargetName=\"UIElement1\" \/>\n              <\/i:EventTrigger>\n      <\/i:Interaction.Triggers>\n<\/Button>\n<\/pre>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u5176\u4e2d\uff1a<br \/>\nxmlns:i=&#8221;clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity&#8221;<br \/>\nxmlns:actions=&#8221;clr-namespace:SilverlightApp.Actions&#8221;<\/p>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ps\uff1at60\u98ce\u6247\u7f62\u5de5\u4e86\uff1a\u5f00\u673a\u4e00\u58f0\u6012\u543c\uff0c\u505c\u7559\u5728fan error\u3002\u641c\u7d22\u4e86\u4e00\u4e0b\uff0c\u636e\u8bf4\u662f\u7f3a\u6cb9\u4e86\uff0c\u7b49\u4e70\u7684\u87ba\u4e1d\u5200\u5230\u4e86\u4ee5\u540e\u7ed9\u5b83\u52a0\u52a0\u6cb9\uff0c\u5e0c\u671b\u4e0d\u7528\u53bb\u627ejs\u4fee\u3002\u8fd9\u8fd8\u4e0d\u52303\u5e74\uff0c51nb\u4e0a\u90a3\u4e48\u591a\u7528x31\u7684\uff0c\u6211\u4ee5\u4e3athinkpad\u5c11\u8bf4\u80fd\u752810\u5e74\u5462\u3002\u3002\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Visibility\u53ef\u4ee5\u63a7\u5236UIElement\u7684\u53ef\u89c1\u6027\uff0c\u4f46\u5176\u662f\u4e00\u4e2a\u679a\u4e3e\u53d8\u91cf\uff0cmsdn\u4e2d\u8bf4\uff1a\u201c\u82e5\u8981\u5bf9\u4f5c\u4e3a\u679a\u4e3e\u7684\u503c\u8fdb\u884c\u52a8\u753b\u5904\u7406\uff0c\u5fc5\u987b\u4f7f\u7528 DiscreteObjectKeyFrame\u3002\u201d\u800c\u5173\u952e\u5e27\u52a8\u753b\u6ca1\u6cd5\u505a\u51fa\u5e73\u6ed1\u7684\u8fc7\u6e21\u6548\u679c\u3002 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\u53ef\u4ee5\u5229\u7528Action\u6765\u5b9e\u73b0\u6807\u9898\u5185\u5bb9\u3002 1\u3001\u521b\u5efa\u4e00\u4e2a\u5e26opacity\u52a8\u753b\u7684Action\u3002 using System.Windows; using System.Windows.Interactivity; using System.Windows.Media.Animation; using System; namespace SilverlightApp.Actions { public class ToggleVisibilityAction : TargetedTriggerAction { protected override void Invoke(object parameter) { DoubleAnimation da = new DoubleAnimation(); da.Duration = new System.Windows.Duration(TimeSpan.FromSeconds(0.3)); Storyboard sb = new Storyboard(); sb.Children.Add(da); Storyboard.SetTarget(da, this.Target); Storyboard.SetTargetProperty(da, new PropertyPath(&#8220;Opacity&#8221;)); if (this.Target.Visibility==Visibility.Visible) { da.To = 0; sb.Begin(); sb.Completed += (o, e) => { this.Target.Visibility = Visibility.Collapsed; }; } &hellip; <a href=\"https:\/\/blog.newnaw.com\/?p=493\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">\u5728Silverlight\u4e2d\u4e3aUIElement.Visibility\u6dfb\u52a0\u52a8\u753b<\/span> <span class=\"meta-nav\">&raquo;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[24],"_links":{"self":[{"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=\/wp\/v2\/posts\/493"}],"collection":[{"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=493"}],"version-history":[{"count":0,"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=\/wp\/v2\/posts\/493\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.newnaw.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}