我无法将任何控件添加到我的视觉工作室 [英] I Cant add any control to my visual studio

问题描述

嗨 我的Visual Studio无法正常工作
我无法从工具箱中将任何控件添加到表单.
我正在修理.
问题仍然存在.
我现在该怎么办?
我也正在卸载Visual Studio.
并再次设置
但问题仍然存在.
请帮帮我.

Hi My visual studio does''nt work corectly
i cant add any control from my toolbox to the form.
i was repair it.
and the problem exist yet.
what do i do now?
also i was uninstall visual studio.
and again setting up it
but the problem exist yet.
Please help me.
cheers shahin.

推荐答案

我会说你几乎肯定做错了.您是否在许多项目中都尝试过?您确定文件不是只读的吗?您选择一个控件，然后单击该表单将其添加?

I would say you''re almost certainly not doing it right. Have you tried it across many projects ? Are you sure the files are not read only ? You select a control, then click the form to add it ?

1-请不要按"answer"来发布非答案
2-您希望我们做什么?我该如何修理您的计算机? Visual Studio适用于使用它的每个人，因此，除了您的安装以外，我看不到任何问题，或者，如果您删除并重新安装了该程序，那么问题就是我列出的问题之一.我们肯定会根据您含糊不清的帖子为您提供帮助.

1 - please don''t push ''answer'' to post a non answer
2 - what do you expect us to do ? How can I fix your computer ? Visual Studio works for everyone who uses it, so, I don''t see how the problem can be anything but your install or, if you''ve removed and reinstalled the program, then the issue is one of the things I listed. We sure as hell cannot help you based on your vague posts.

只需在c#中创建自定义cortrol
< pre lang ="cs">使用System.ComponentModel;
使用System.Security.Permissions;
使用System.Web;
使用System.Web.UI;
使用System.Web.UI.WebControls;

命名空间Samples.AspNet.CS.Controls
{
[
AspNetHostingPermission(SecurityAction.Demand，
级别= AspNetHostingPermissionLevel.Minimal)，
AspNetHostingPermission(SecurityAction.InheritanceDemand，
Level = AspNetHostingPermissionLevel.Minimal)，
DefaultProperty(& quot;文本& quot;)，
ToolboxData(& lt; {0}:WelcomeLabel runat = \&服务器\& quot;& lt;/{0}:WelcomeLabel& quot;)
]
公共类WelcomeLabel:WebControl
{
[
可绑定(true)，
类别(外观")，
DefaultValue(&&")，
说明(&欢迎消息文本.")，
可本地化(true)
]
公共虚拟字符串Text
{
获取
{
字符串s =(string)ViewState [& quot; Text& quot;] ;;
返回(s == null)吗? String.Empty:s;
}
设置
{
ViewState [& quot;文本& quot]] =值;
}
}

受保护的重写void RenderContents(HtmlTextWriter writer)
{
writer.WriteEncodedText(Text);
如果(上下文！= null)
{
字符串s = Context.User.Identity.Name;
if(s！= null&& s！= String.Empty)
{
string [] split = s.Split(&#39; \\&#39;);
int n = split.Length-1;
如果(split [n]！= String.Empty)
{
writer.Write(&，& quot;);
writer.Write(split [n]);
}
}
}
writer.Write(&！& quot;);
}
}
}</pre>


然后按照以下步骤操作.

< b>•创建ASP.NET服务器控件.
•将元数据添加到控件及其成员，以控制安全性和设计时行为.
•使用ASP.NET网站中的App_Code目录来测试您的控件，而无需手动编译步骤.
•在配置文件和控件的程序集中指定标签前缀.
•将控件编译为程序集并将其添加到Bin目录.
•将位图作为控件的工具箱图标嵌入到控件的程序集中.
•在页面中使用编译后的控件.</b>

just create a custom cortrol in c#
<pre lang="cs">using System.ComponentModel;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Samples.AspNet.CS.Controls
{
[
AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal),
AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level=AspNetHostingPermissionLevel.Minimal),
DefaultProperty(&quot;Text&quot;),
ToolboxData(&quot;&lt;{0}:WelcomeLabel runat=\&quot;server\&quot;&gt; &lt;/{0}:WelcomeLabel&gt;&quot;)
]
public class WelcomeLabel : WebControl
{
[
Bindable(true),
Category(&quot;Appearance&quot;),
DefaultValue(&quot;&quot;),
Description(&quot;The welcome message text.&quot;),
Localizable(true)
]
public virtual string Text
{
get
{
string s = (string)ViewState[&quot;Text&quot;];
return (s == null) ? String.Empty : s;
}
set
{
ViewState[&quot;Text&quot;] = value;
}
}

protected override void RenderContents(HtmlTextWriter writer)
{
writer.WriteEncodedText(Text);
if (Context != null)
{
string s = Context.User.Identity.Name;
if (s != null &amp;&amp; s != String.Empty)
{
string[] split = s.Split(&#39;\\&#39;);
int n = split.Length - 1;
if (split[n] != String.Empty)
{
writer.Write(&quot;, &quot;);
writer.Write(split[n]);
}
}
}
writer.Write(&quot;!&quot;);
}
}
}</pre>


then follow the folowing steps.

<b>•Create an ASP.NET server control.
•Add metadata to the control and its members to control security and design-time behavior.
•Use the App_Code directory in an ASP.NET Web site to test your control without manual compilation steps.
•Specify a tag prefix in a configuration file and in the control''s assembly.
•Compile the control into an assembly and add it to the Bin directory.
•Embed a bitmap into the control''s assembly as the toolbox icon for a visual designer.
•Use the compiled control in a page.</b>

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