blocks|key|1287369|text|尝试禁用和启用文本框。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287370|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Try disabling and enabling the textbox.

blocks|key|1287434|text|您需要一些其他的可聚焦控件来将焦点移动到其中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287435|请注意，您可以将焦点设置为标签。您可能需要考虑下一步使用Tab键的位置。|1287436|另请注意，您不能将其设置为表单。像Form和Panel这样的容器控件会将焦点传递给它们的第一个子控件。这可能是您希望它远离的TextBox。|1287437|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You need some other focusable control to move the focus to. 

Note that you can set the Focus to a Label. You might want to consider where you want the [Tab] key to take it next.

Also note that you cannot set it to the Form. Container controls like Form and Panel will pass the Focus on to their first child control. Which could be the TextBox you wanted it to move away from.

blocks|key|1287467|text|Focus设置输入焦点，因此将其设置为表单将不起作用，因为表单不接受输入。请尝试将窗体的ActiveControl属性设置为其他控件。您还可以使用Select来选择特定控件，或者使用SelectNextControl来选择Tab键顺序中的下一个控件。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1287468|entityMap^0|0|5|18|D|21|6|2J|H|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

<code>Focus</code> sets the input focus, so setting it to the form won't work because forms don't accept input. Try setting the form's <code>ActiveControl</code> property to a different control. You could also use <code>Select</code> to select a specific control or <code>SelectNextControl</code> to select the next control in the tab order.

blocks|key|1502331|text|我找到了一个很好的替代方案！它最适合我，不需要把注意力放在其他事情上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502332|试一试：|1502333|private+void+richTextBox_KeyDown(object+sender,+KeyEventArgs+e)
{++++
++++e.SuppressKeyPress+=+true;
}|code-block|syntax|javascript|1502334|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I've found a good alternative! It works best for me, without setting the focus on something else.

Try that:

<pre><code>private void richTextBox_KeyDown(object sender, KeyEventArgs e)
{ 
 e.SuppressKeyPress = true;
}
</code></pre>

blocks|key|1502375|text|专注于标签对我不起作用，做一些像label1.Focus()这样的事情，对吗？加载表单时，textbox仍然具有焦点，但是尝试Velociraptors+answer对我有效，将表单的活动控件设置为标签，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1502376|private+void+Form1_Load(object+sender,+EventArgs+e)++
{+
++++this.ActiveControl+=+label1;+++++++
}|code-block|syntax|javascript|1502377|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/122215/velociraptors^0|G|E|1R|D|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

Focusing on the label didn't work for me, doing something like <code>label1.Focus()</code> right?
the textbox still has focus when loading the form, however trying <a href="https://stackoverflow.com/users/122215/velociraptors">Velociraptors</a>
answer, worked for me, setting the Form's Active control to the label like this:

<pre class="lang-cs prettyprint-override"><code>private void Form1_Load(object sender, EventArgs e) 
{ 
 this.ActiveControl = label1; 
}
</code></pre>

blocks|key|1287614|text|看起来我不需要把焦点放在其他任何元素上。在Windows+phone7应用程序中，我一直在使用Focus方法取消设置文本框的焦点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287615|给出以下命令将焦点设置为nothing：|1287616|void+SearchBox_KeyDown(object+sender,+System.Windows.Input.KeyEventArgs+e)
{
++++if+(e.Key+==+Key.Enter)
++++{
++++++++Focus();
++++}
}|code-block|syntax|javascript|1287617|http://msdn.microsoft.com/en-us/library/system.windows.forms.control.focus.aspx|offset|length|1287618|它对我有效，但我不知道为什么它对你无效:/|1287619|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|27|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|X|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Y|8|@]|9|@$K|Z|L|10|1|11]]|A|$]]|$1|M|3|N|5|6|7|12|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|J]]]]

It seems that I don't have to set the focus to any other elements. On a Windows Phone 7 application, I've been using the Focus method to unset the Focus of a Textbox.

Giving the following command will set the focus to nothing:

<pre><code>void SearchBox_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
{
 if (e.Key == Key.Enter)
 {
 Focus();
 }
}
</code></pre>

<a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.focus.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/system.windows.forms.control.focus.aspx</a>

It worked for me, but I don't know why didn't it work for you :/

blocks|key|1287688|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287689|首先设置tab键顺序。|1287690|然后，在表单加载事件中，我们可以以编程方式向应用程序发送Tab键按下。因此应用程序将焦点放在Tab键顺序中第一个控件上。|1287691|在form+load中，甚至写下这一行。|1287692|SendKeys.Send("{TAB}");|code-block|syntax|javascript|1287693|这对我来说很管用。|1287694|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Try this one:

First set up tab order.

Then in form load event we can send a tab key press programmatically to application. So that application will give focus to 1st contol in the tab order.

in form load even write this line.

<pre><code>SendKeys.Send("{TAB}");
</code></pre>

This did work for me.

blocks|key|1502536|text|一个简单的解决方案是杀死焦点，只需创建自己的类：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502537|public+class+ViewOnlyTextBox+:+System.Windows.Forms.TextBox+{
++++//+constants+for+the+message+sending
++++const+int+WM_SETFOCUS+=+0x0007;
++++const+int+WM_KILLFOCUS+=+0x0008;

++++protected+override+void+WndProc(ref+Message+m)+{
++++++++if(m.Msg+==+WM_SETFOCUS)+m.Msg+=+WM_KILLFOCUS;

++++++++base.WndProc+(ref+m);
++++}
}|code-block|syntax|javascript|1502538|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A simple solution would be to kill the focus, just create your own class:

<pre><code>public class ViewOnlyTextBox : System.Windows.Forms.TextBox {
 // constants for the message sending
 const int WM_SETFOCUS = 0x0007;
 const int WM_KILLFOCUS = 0x0008;

 protected override void WndProc(ref Message m) {
 if(m.Msg == WM_SETFOCUS) m.Msg = WM_KILLFOCUS;

 base.WndProc (ref m);
 }
}
</code></pre>

blocks|key|1502563|text|还可以将forms+activecontrol属性设置为null，如下所示|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1502564|ActiveControl+=+null;|code-block|syntax|javascript|1502565|entityMap^0|A|D|S|4|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You can also set the forms <code>activecontrol</code> property to <code>null</code> like

<pre><code>ActiveControl = null;
</code></pre>

blocks|key|1287806|text|我在我的自定义控件上做了这个，我做了这个onFocus()|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287807|this.Parent.Focus();|code-block|syntax|javascript|1287808|因此，如果文本框被聚焦-它会立即聚焦于文本框父对象(窗体或面板...)如果你想在自定义控件上实现这一点，这是个不错的选择。|1287809|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I made this on my custom control, i done this onFocus()

<pre><code>this.Parent.Focus();
</code></pre>

So if texbox focused - it instantly focus textbox parent (form, or panel...)
This is good option if you want to make this on custom control.

blocks|key|1502654|text|这篇文章引导我这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502655|ActiveControl+=+null;|code-block|syntax|javascript|1502656|这使我能够捕获顶层的所有键盘输入，而不会让其他控件变得疯狂。|1502657|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This post lead me to do this:

<pre><code>ActiveControl = null;
</code></pre>

This allows me to capture all the keyboard input at the top level without other controls going nuts.

blocks|key|1502671|text|++++//using+System;
++++//using+System.Collections.Generic;
++++//using+System.Linq;

++++private+void+Form1_Load(object+sender,+EventArgs+e)
++++{
++++++++FocusOnOtherControl(Controls.Cast<Control>(),+button1);
++++}

++++private+void+FocusOnOtherControl<T>(IEnumerable<T>+controls,+Control+focusOnMe)+where+T+:+Control
++++{
++++++++foreach+(var+control+in+controls)
++++++++{
++++++++++++if+(control.GetType().Equals(typeof(TextBox)))
++++++++++++{
++++++++++++++++control.TabStop+=+false;
++++++++++++++++control.LostFocus+%2B=+new+EventHandler((object+sender,+EventArgs+e)+=>
++++++++++++++++{+++++++++++++++++++++
++++++++++++++++++++focusOnMe.Focus();
++++++++++++++++});
++++++++++++}
++++++++}
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1502672|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> //using System;
 //using System.Collections.Generic;
 //using System.Linq;

 private void Form1_Load(object sender, EventArgs e)
 {
 FocusOnOtherControl(Controls.Cast&lt;Control&gt;(), button1);
 }

 private void FocusOnOtherControl&lt;T&gt;(IEnumerable&lt;T&gt; controls, Control focusOnMe) where T : Control
 {
 foreach (var control in controls)
 {
 if (control.GetType().Equals(typeof(TextBox)))
 {
 control.TabStop = false;
 control.LostFocus += new EventHandler((object sender, EventArgs e) =&gt;
 { 
 focusOnMe.Focus();
 });
 }
 }
 }
</code></pre>

blocks|key|1287944|text|我解决这个问题的方法是把我所有的winform控件。我将所有标签和未选择的winform控件设置为Tab键顺序0，然后将我的第一个控件设置为Tab键顺序2，然后将每个可选控件的顺序递增1，因此为3、4、5等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287945|这样，当我的Winforms启动时，第一个TextBox就没有焦点了！|1287946|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

The way I get around it is to place all my winform controls. I make all labels and non-selecting winform controls as tab order 0, then my first control as tab order 2 and then increment each selectable control's order by 1, so 3, 4, 5 etc...

This way, when my Winforms start up, the first TextBox doesn't have focus!

blocks|key|1287959|text|您可以添加以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1287960|this.ActiveControl+=+null;++//this+=+form|code-block|syntax|javascript|1287961|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can add the following code:

<pre><code>this.ActiveControl = null; //this = form
</code></pre>

blocks|key|1288009|text|如果你想要的只是视觉效果，即文本框的内容上没有蓝色选项，只需选择无文本即可：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1288010|textBox_Log.SelectionStart+=+0;
textBox_Log.SelectionLength+=+0;
textBox_Log.Select();|code-block|syntax|javascript|1288011|此后，当使用.Text+%2B=+"..."添加内容时，不会显示蓝色选项。|offset|length|style|CODE|1288012|entityMap^0|0|0|6|E|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

If all you want is the optical effect that the textbox has no blue selection all over its contents, just select no text:

<pre><code>textBox_Log.SelectionStart = 0;
textBox_Log.SelectionLength = 0;
textBox_Log.Select();
</code></pre>

After this, when adding content with <code>.Text += "..."</code>, no blue selection will be shown.

blocks|key|1502843|text|请尝试将未被聚焦的视图控件的TabStop设置为False。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1502844|例如：|1502845|txtEmpID.TabStop+=+false;|code-block|syntax|javascript|1502846|entityMap^0|E|7|O|5|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|N|$]]

Please try set <code>TabStop</code> to <code>False</code> for your view control which is not be focused.

For eg:

<pre><code>txtEmpID.TabStop = false;
</code></pre>

blocks|key|1502877|text|在窗体的构造函数或包含TextBox的UserControl中写入|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502878|SetStyle(ControlStyles.Selectable,+false);|code-block|syntax|javascript|1502879|在InitializeComponent()之后；来源：https://stackoverflow.com/a/4811938/5750078|offset|length|1502880|示例：|1502881|public+partial+class+Main+:+UserControl
{

++++public+Main()
++++{
++++++++InitializeComponent();
++++++++SetStyle(ControlStyles.Selectable,+false);
++++}|1502882|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/4811938/5750078^0|0|0|S|17|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@$I|Z|J|10|1|11]]|A|$]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

In the constructor of the Form or UserControl holding the TextBox write

<pre><code>SetStyle(ControlStyles.Selectable, false);
</code></pre>

After the InitializeComponent();
Source: <a href="https://stackoverflow.com/a/4811938/5750078">https://stackoverflow.com/a/4811938/5750078</a>

Example:

<pre><code>public partial class Main : UserControl
{

 public Main()
 {
 InitializeComponent();
 SetStyle(ControlStyles.Selectable, false);
 }
</code></pre>

blocks|key|1502887|text|您可以尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502888|textBox1.Enable+=+false;|code-block|syntax|javascript|1502889|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can try:
<pre><code>textBox1.Enable = false;
</code></pre>

blocks|key|1288106|text|使用System.Windows.Input|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1288107|Keyboard.ClearFocus();|code-block|syntax|javascript|1288108|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

using System.Windows.Input
<pre><code>Keyboard.ClearFocus();
</code></pre>

blocks|key|1502953|text|2022年的聚会有点晚了，但是这里没有一个解决方案对我来说是有效的(为什么)使用.Net_6.0_windows，所以我提出了这个解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1502954|Label+focusoutLabel+=+new+Label()+{+
++++Text+=+"",
++++Name+=+"somegenericplaceholdernamethatwillneverbeusedinmyprogram",
++++Visible+=+false,
};
this.Controls.Add(focusoutLabel);
this.ActiveControl+=+focusoutLabel;|code-block|syntax|javascript|1502955|%5E将此代码放入窗体加载处理程序%5E|1502956|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Kinda late to the party in 2022, however none of the solutions here worked for me (idk why) using .Net_6.0_windows, so I've come up with this solution:
<pre><code>Label focusoutLabel = new Label() { 
 Text = &quot;&quot;,
 Name = &quot;somegenericplaceholdernamethatwillneverbeusedinmyprogram&quot;,
 Visible = false,
};
this.Controls.Add(focusoutLabel);
this.ActiveControl = focusoutLabel;
</code></pre>
^Place this code to your Form load handler^

I need to remove the focus from several TextBoxes. I tried using:

<pre><code>textBox1.Focused = false;
</code></pre>

Its <code>ReadOnly</code> property value is <code>true</code>.

I then tried setting the focus on the form, so as to remove it from all the TextBoxes, but this also fails to work:

<pre><code>this.Focus();
</code></pre>

and the function returns <code>false</code> when a textbox is selected.

So, how do I remove the focus from a TextBox?

How to remove the focus from a TextBox in WinForms?

Windows

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我需要从几个TextBoxes中移除焦点。我尝试使用：textBox1.Focused = false;其ReadOnly属性值为true。然后，我尝试在表单上设置焦点，以便从所有TextBoxes中删除它，但这也不起作用：this.Focus();当文本框被选中时，该函数返回false。那么，如何从TextBox中移...

问如何在WinForms中移除TextBox的焦点？
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问如何在WinForms中移除TextBox的焦点？
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