blocks|key|675663|text|string+Code+=+new+String(txtDesc.text.Where(c+=>+IsUpper(c)).ToArray());|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|675664|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>string Code = new String(txtDesc.text.Where(c =&gt; IsUpper(c)).ToArray());
</code></pre>

blocks|key|675686|text|您可以尝试使用'Replace+lowercase+characters+with+star‘实现，但将'*’更改为'‘(空白)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|675687|所以代码应该是这样的：|675688|txtDesc.Text+=+"Blue+Cross+Blue+Shield";
string+TargetString+=+txt.Desc.Text;
string+MainString+=+TargetString;
for+(int+i+=+0;+i+<+TargetString.Length;+i%2B%2B)
{
++++if+(char.IsLower(TargetString[i]))
++++{
++++++++TargetString+=+TargetString.Replace(+TargetString[+i+].ToString(),+string.Empty+);
++++}
}
Console.WriteLine("The+string+{0}+has+converted+to+{1}",+MainString,+TargetString);|code-block|syntax|javascript|675689|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/5533163/replace-lowercase-characters-with-star^0|8|12|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

You can try use the '<a href="https://stackoverflow.com/questions/5533163/replace-lowercase-characters-with-star">Replace lowercase characters with star</a>' implementation, but change '*' to '' (blank)

So the code would look something like this:

<pre><code>txtDesc.Text = "Blue Cross Blue Shield";
string TargetString = txt.Desc.Text;
string MainString = TargetString;
for (int i = 0; i &lt; TargetString.Length; i++)
{
 if (char.IsLower(TargetString[i]))
 {
 TargetString = TargetString.Replace( TargetString[ i ].ToString(), string.Empty );
 }
}
Console.WriteLine("The string {0} has converted to {1}", MainString, TargetString);
</code></pre>

blocks|key|675712|text|我会将值映射到字典中的缩写，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|675713|Dictionary<string,+string>+valueMap+=+new+Dictionary<string,+string>();
valueMap.Add("Blue+Cross+Blue+Shield",+"BCBS");

string+Code+=+"";
if(valueMap.ContainsKey(txtDesc.Text))
++Code+=+valueMap[txtDesc.Text];
else
++//+Handle|code-block|syntax|javascript|675714|但是，如果您仍然需要您提到的功能，请使用linq：|675715|string+newString+=+new+string(txtDesc.Text.Where(c+=>+char.IsUpper(c).ToArray());|675716|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I´d map the value to your abbreviation in a dictionary like:

<pre><code>Dictionary&lt;string, string&gt; valueMap = new Dictionary&lt;string, string&gt;();
valueMap.Add("Blue Cross Blue Shield", "BCBS");

string Code = "";
if(valueMap.ContainsKey(txtDesc.Text))
 Code = valueMap[txtDesc.Text];
else
 // Handle
</code></pre>

But if you still want the functionality you mention use linq:

<pre><code>string newString = new string(txtDesc.Text.Where(c =&gt; char.IsUpper(c).ToArray());
</code></pre>

blocks|key|675720|text|string+Code+=+Regex.Replace(txtDesc.text,+"[a-z]",+"");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|675721|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>string Code = Regex.Replace(txtDesc.text, "[a-z]", "");
</code></pre>

blocks|key|675775|text|不使用正则表达式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|675776|string+input+=+"Blue+Cross+Blue+Shield";
string+output+=+new+string(input.Where(Char.IsUpper).ToArray());
Response.Write(output);|code-block|syntax|javascript|675777|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|$]]

Without Regex:

<pre><code>string input = "Blue Cross Blue Shield";
string output = new string(input.Where(Char.IsUpper).ToArray());
Response.Write(output);
</code></pre>

blocks|key|892482|text|string+caps+=+"ABCDEFGHIJKLMNOPQRSTUVWXYZ";

string.Join("",
+++"Blue+Cross+Blue+Shield".Select(c+=>+caps.IndexOf(c)+>+-1+?+c.ToString()+:+"")
+++++++++++++++++++++++++++.ToArray());|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|892483|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>string caps = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

string.Join("",
 "Blue Cross Blue Shield".Select(c =&gt; caps.IndexOf(c) &gt; -1 ? c.ToString() : "")
 .ToArray());
</code></pre>

blocks|key|892507|text|我认为规范要求匹配所有单词中的第一个字符，而不是所有大写字母都匹配。这将允许不一致的输入，但从长远来看仍然是可靠的。因此，我建议使用以下代码。它使用来自Regex对象的每个字符串的聚合，并将该值附加到名为output的Match对象中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|892508|string+input+=+"Blue+Cross+BLUE+shield+12356";
Regex+regex+=+new+Regex("\\b\\w");
string+output+=+regex.Matches(input).Cast<Match>().Aggregate("",+(current,+match)+=>+current+%2B+match.Value);
Console.WriteLine(output.ToUpper());+//+outputs+BCBS1|code-block|syntax|javascript|892509|entityMap^0|24|5|2U|6|31|5|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

Rather than matching on all capitals, I think the specification would require matching the first character from all the words. This would allow for inconsitent input but still be reliable in the long run. For this reason, I suggest using the following code. It uses an aggregate on each <code>Match</code> from the <code>Regex</code> object and appends the value to a string object called <code>output</code>.

<pre><code>string input = "Blue Cross BLUE shield 12356";
Regex regex = new Regex("\\b\\w");
string output = regex.Matches(input).Cast&lt;Match&gt;().Aggregate("", (current, match) =&gt; current + match.Value);
Console.WriteLine(output.ToUpper()); // outputs BCBS1
</code></pre>

blocks|key|892476|text|string+Code+=+Regex.Replace(txtDesc.text,+"[a-z]",+"");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|892477|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|$]]

blocks|key|675801|text|这并不完美，但应该可以工作(并通过您的BCBS测试)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|675802|private+static+string+AlphaCode(String+Input)
{
++++List<String>+capLetter+=+new+List<String>();
++++foreach+(Char+c+in+Input)
++++{
++++++++if+(char.IsLetter(c))
++++++++{
++++++++++++String+letter+=+c.ToString();
++++++++++++if+(letter+==+letter.ToUpper())+{+capLetter.Add(letter);+}
++++++++}
++++}
++++return+String.Join(String.Empty,+capLetter.ToArray());
}|code-block|syntax|javascript|675803|这个版本将处理奇怪的输入场景(这确保每个单词的第一个字母都是大写的)。|675804|private+static+string+AlphaCode(String+Input)
{
++++String+capCase+=+System.Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Input.ToString().ToLower());

++++List<String>+capLetter+=+new+List<String>();
++++foreach+(Char+c+in+capCase)
++++{
++++++++if+(char.IsLetter(c))
++++++++{
++++++++++++String+letter+=+c.ToString();
++++++++++++if+(letter+==+letter.ToUpper())+{+capLetter.Add(letter);+}
++++++++}
++++}
++++return+String.Join(String.Empty,+capLetter.ToArray());
}|675805|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

This isn't perfect but should work (and passes your BCBS test):

<pre><code>private static string AlphaCode(String Input)
{
 List&lt;String&gt; capLetter = new List&lt;String&gt;();
 foreach (Char c in Input)
 {
 if (char.IsLetter(c))
 {
 String letter = c.ToString();
 if (letter == letter.ToUpper()) { capLetter.Add(letter); }
 }
 }
 return String.Join(String.Empty, capLetter.ToArray());
}
</code></pre>

And this version will handle strange input scenarios (this makes sure the first letter of each word is capitalized).

<pre><code>private static string AlphaCode(String Input)
{
 String capCase = System.Globalization.CultureInfo.CurrentCulture.TextInfo.ToTitleCase(Input.ToString().ToLower());

 List&lt;String&gt; capLetter = new List&lt;String&gt;();
 foreach (Char c in capCase)
 {
 if (char.IsLetter(c))
 {
 String letter = c.ToString();
 if (letter == letter.ToUpper()) { capLetter.Add(letter); }
 }
 }
 return String.Join(String.Empty, capLetter.ToArray());
}
</code></pre>

I'm trying to remove the lower case letters on a <code>TextBox</code>.. 

For example, short alpha code representing the insurance (e.g., 'BCBS' for 'Blue Cross Blue Shield'):

<pre><code>txtDesc.text = "Blue Cross Blue Shield";

string Code = //This must be BCBS.. 
</code></pre>

Is it possible? Please help me. Thanks!

How to remove lowercase on a textbox?

我正在尝试删除TextBox上的小写字母..例如，表示保险的简短alpha代码(例如，'BCBS‘代表'Blue Cross Blue Shield')：txtDesc.text = "Blue Cross Blue Shield";string Code = //This must be BCBS.. 有可能吗？请帮帮我。谢谢!

问如何删除文本框上的小写？
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问如何删除文本框上的小写？EN

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问如何删除文本框上的小写？
EN