blocks|key|2053214|text|考虑到所选文本为PinturaA+$105。您可以使用正则表达式(或)字符串库方法来仅获取如下数字|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2053215|string+str+=+"PinturaA+$105";
string+val+=+(str.IndexOf("$")+>+0)+
++++++++++++++?+str.Substring(str.IndexOf("$"),+str.Length+-+str.IndexOf("$"))+
++++++++++++++:+string.Empty;|code-block|syntax|javascript|2053216|entityMap^0|8|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Considering the selected text is <code>PinturaA $105</code> .. you can use regular expression (or) string library method to get only the numbers like

<pre><code>string str = "PinturaA $105";
string val = (str.IndexOf("$") &gt; 0) 
 ? str.Substring(str.IndexOf("$"), str.Length - str.IndexOf("$")) 
 : string.Empty;
</code></pre>

blocks|key|2053231|text|您可以使用正则表达式轻松完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2053232|var+oldtext+=+"Solvente+$101";
var+newtest+=+Regex.Match(oldText,+"\\d%2B$").Groups[0].Value;|code-block|syntax|javascript|2053233|变量newtext将包含数字。|offset|length|style|CODE|2053234|entityMap^0|0|0|2|7|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|$]]

You can do this easily with a regex:

<pre><code>var oldtext = "Solvente $101";
var newtest = Regex.Match(oldText, "\\d+$").Groups[0].Value;
</code></pre>

The variable <code>newtext</code> will contain the digits.

blocks|key|4369884|text|您可以使用正则表达式并执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4369885|++++var+item+=+"Solvente+$101";
++++var+val+=+Regex.Match(item,+@"\$(\d%2B)").Groups[1];|code-block|syntax|javascript|4369886|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 could use Regex and just do 

<pre><code> var item = "Solvente $101";
 var val = Regex.Match(item, @"\$(\d+)").Groups[1];
</code></pre>

blocks|key|4369909|text|您应该使用Regex来获得所需的输出。您需要在ListBox+event中应用Regex。请查看下面的Regex和C#示例。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4369910|正则表达式：|4369911|\d%2B|code-block|syntax|javascript|4369912|上面的Regex将为您提供来自string的所有digit|4369913|代码C#：|4369914|private+void+listBox1_SelectedIndexChanged(object+sender,+EventArgs+e)
{
++++//+Your+others+code+&+logic

++++//string+data+=+"PinturaV+$100";
++++string+data+=+listBox1.Text;
++++textBox1.Text+=+Regex.Match(data,+@"\d%2B").Value;
}|4369915|entityMap^0|5|5|N|7|V|5|13|5|1F|5|1L|2|0|0|0|3|5|F|6|O|5|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1G|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|1H|8|@]|D|@]|E|$K|L]]|$1|S|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]]|T|$]]

You should use <code>Regex</code> to get your desired output. You need to apply <code>Regex</code> in your <code>ListBox</code> <code>event</code>. Please check below for <code>Regex</code> &amp; <code>C#</code> example.

Regex:

<pre><code>\d+
</code></pre>

Above <code>Regex</code> will give you all <code>digit</code> from your <code>string</code>

CODE C#:

<pre><code>private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
 // Your others code &amp; logic

 //string data = "PinturaV $100";
 string data = listBox1.Text;
 textBox1.Text = Regex.Match(data, @"\d+").Value;
}
</code></pre>

blocks|key|5838056|text|其他的答案都是可以的，并且可能会起作用。但正如您所知，处理这种事情的典型方法是将所需的数据放入ListItems的Value属性中，将文本放入Text属性中，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5838057|private+void+PopulateListBox1()
{
++++listBox1.Add(new+ListItem("100","PinturaV+$100"));
++++listBox1.Add(new+ListItem("105","PinturaA+$105"));
++++listBox1.Add(new+ListItem("115","PinturaE+$115"));
++++listBox1.Add(new+ListItem("112","Lijas_Ag+$112"));
++++listBox1.Add(new+ListItem("101","Solvente+$101"));
}|code-block|syntax|javascript|5838058|然后获取Value而不是Text，如下所示：|5838059|private+void+listBox1_SelectedIndexChanged(object+sender,+EventArgs+e)
{
++++textBox1.Text+=+listBox1.SelectedValue;+
}|5838060|正如您所看到的，这比解析ListItem.Text返回的字符串要简单得多。|5838061|entityMap^0|1L|5|1Z|4|0|0|4|5|C|4|0|0|C|D|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|R|$]]

The other answers are OK and will probably work. But just so you know, the typical way to handle this sort of thing is to put the data you want in the ListItems' <code>Value</code> property and the text in the <code>Text</code> property, like this:

<pre><code>private void PopulateListBox1()
{
 listBox1.Add(new ListItem("100","PinturaV $100"));
 listBox1.Add(new ListItem("105","PinturaA $105"));
 listBox1.Add(new ListItem("115","PinturaE $115"));
 listBox1.Add(new ListItem("112","Lijas_Ag $112"));
 listBox1.Add(new ListItem("101","Solvente $101"));
}
</code></pre>

And then get the <code>Value</code> instead of <code>Text</code>, like this:

<pre><code>private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
 textBox1.Text = listBox1.SelectedValue; 
}
</code></pre>

As you can see this is far, far simpler than parsing the string returned by <code>ListItem.Text</code>.

Hello sorry if the answer for this is already out there somewhere but I did not find it, or did not understand it. What I have to do is I have a list box in visual studio (C#) and in this list box are some options to click on.

PinturaV $100

PinturaA $105

PinturaE $115

Lijas_Ag $112

Solvente $101

If I select a line for example PinturaA $105 from the list box in a text box that I have it should show only 105. Then if I select for example Lijas_Ag $112, the text box should show...

105

112

And so on until I press the total button and it would give me the total.
My problem is having just the numbers appear on the text box. I coded so that the program can read the line selected and tell me where the space is located but I don't know if this was even needed to be able to get the number into the text box. I have no Idea how to do this. Any help would be much appreciated. I left some pics in case that helps.

Thank You

<a href="https://i.stack.imgur.com/abGZ7.png" rel="nofollow noreferrer">main selected</a>

<a href="https://i.stack.imgur.com/Uj5vC.png" rel="nofollow noreferrer">Code I have so far</a>

How can I show only specific parts of a text line in C#

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

你好，抱歉，如果这个问题的答案已经在某个地方，但我没有找到它，或者不理解它。我要做的是在visual studio (C#)中有一个列表框，在这个列表框中有一些可以点击的选项。PinturaV $100PinturaA $105PinturaE $115Lijas_Ag $112Solvente $101如果我从我拥有...

问如何在C#中仅显示文本行的特定部分
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在C#中仅显示文本行的特定部分EN