Loop through a string to list the capital letters

[paulparkes]

Hi,

I’m using C# and need some help in trying to identify the capital letters in a string. I understand that I have to use a ‘For Each’ activity (I think! ) because I have to go through the string character by character to check if it’s upper case, but I’m not sure how to do this.

Thanks

[supermanPunch (Arpan)]

@paulparkes

I’m using C# and need some help in trying to identify the capital letters in a string

Hi @paulparkes ,

Could you let us know with an example of what you want to perform or check ? Do you want to check if all the letters in a String are upper case ?

[Palaniyappan (Forum Leader)]

Hope the below steps would help you resolve this

1. For dt get the array of characters from a text like this using assign activity

arrayvariable = value.ToCharArray()

Where arrayvariable is a variable of type array of string

2. Now use a FOR EACH activity and pass the above array as input and change the type argument as string

3. Inside the loop use a If activity like this

item.ToString.Equals(item.ToString.ToUpper)

If true it goes to then block and it’s in upper case
If false goes to else block and it’s in lower case

Hope this helps

Cheers @paulparkes

[ppr (Peter Preuss)]

@paulparkes

I understand that I have to use a ‘For Each’ activity

As mentioned by @supermanPunch it depends to your use case

Just to mentions some other options:
"Hello World".Intersect(Enumerable.Range(65,26).Select(x => (char)x)).ToArray()

• Using Regex.isMatch / Matches
• Using Linq Any / All / Where

[paulparkes]

Hi,

Sure, I’m using System.Environment.Username to get the username (FirstnameSurname) of the logged on user. The first letter of the first name and surname are capitalised. I’m trying to find a way to get the capitalised initials from the username.

Hope that helps

[ppr (Peter Preuss)]

@ppr

Using Regex.isMatch

A simple pattern

[paulparkes]

Sorry, I’m still very new to this, is there an activity for Regular Expression??

[ppr (Peter Preuss)]

you can use the Matches activity
https://docs.uipath.com/activities/other/latest/workflow/matches

[paulparkes]

I’m not seeing it when I search for it

[Palaniyappan (Forum Leader)]

@Palaniyappan

1. For dt get the array of characters from a text like this using assign activity

arrayvariable = value.ToCharArray()

Where arrayvariable is a variable of type array of string

2. Now use a FOR EACH activity and pass the above array as input and change the type argument as string
3. Inside the loop use a If activity like this

item.ToString.Equals(item.ToString.ToUpper

Did this help you out
Let us know for any clarification @paulparkes

[ppr (Peter Preuss)]

But we can also shorten to

Assign Activity
strInitials =
string.Join("", System.Text.RegularExpressions.Regex.Matches(strText, strPattern))

Kindly note: Short Statement has to be used on a Windows Compatibility Project

[paulparkes]

is ‘Matches’ one of these? These are the only ones that appear when I search

[ppr (Peter Preuss)]

Find matching Patterns is the new name in your version

We hope you had noticed the oneliner:

@ppr

Assign Activity
strInitials =
string.Join("", System.Text.RegularExpressions.Regex.Matches(strText, strPattern))

[paulparkes]

I did thank you…

I wasn’t sure what this bit was though, so was trying to work it out

[paulparkes]

Trying it now, thank you

[ppr (Peter Preuss)]

@paulparkes

wasn’t sure what this bit was though, so was trying to work it out

strText = Your Input Text
strPattern = the Regex Pattern from Above: "[A-Z]"

[CheatSheet] - System.Text.RegularExpressions | RegEx - News / Tutorials - UiPath Community Forum

[paulparkes]

Perfect, thank you!

I’ll spend some time becoming familiar with ‘Matching Patterns’, I have a feeling it’ll be useful, but in the meantime, the Assign activity works perfectly!

Thank you so much!!