How to add values to array using Linq?

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I am adding to array using the foreach loop. I want to do the same via linq.

My code is as below:

C#

foreach (string SourceExcelFilePath in SourceExcelTemplateCollection)
                   {
                       //Fetch the Template Id from Destination Excel Template(In DATA Folder)if any to validate if Template Id already exists
                       string SourceExcelTemplateName = Path.GetFileNameWithoutExtension(SourceExcelFilePath);
                       string[] SourceExcelTemplateId = SourceExcelTemplateName.Split('_');
                       StdExcelTemplateIdList.Add(SourceExcelTemplateId[1].ToString());
                       StdExcelTemplateIdValues = StdExcelTemplateIdList.ToArray();

                   }

Posted 7-Jan-16 18:39pm

Korathu123

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Maciej Los 8-Jan-16 2:06am

What kind of data returns SourceExcelTemplateCollection?
What returns Path.GetFileNameWithoutExtension(SourceExcelFilePath)?
If you want our help, you must be more specific.

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Maciej Los · Answer 1 · 2016-01-07T20:54:00

My best shot:

C#

var result = SourceExcelTemplateCollection
                .Select(x=>new 
                    {
                        SourceExcelTemplateId = Path.GetFileNameWithoutExtension(x).Split('_')[1]                    
                    });

It should return IEnumerable<string>. To get an array or a list of string, use ToArray() or ToList() method at the end of above statement.

[EDIT]
I suspect that you want to achieve something like this:

C#

string[] SourceExcelTemplateCollection = new string[]{@"C:\Template_C012.xslt",
		@"C:\Template_D511.xslt",
		@"C:\Template_H914.xslt",
		@"C:\Template_A011.xslt"};
		
List<string> StdExcelTemplateIdList = SourceExcelTemplateCollection
                .Select(x=>Path.GetFileNameWithoutExtension(x).Split('_')[1])
				.ToList<string>();

Result: