ASP.NET provides a handy JsonConstructor annotation for deserializing a complex type from a string:

I would like to make some heap allocation free methods for performing some operations. Some of these methods accept a delegate as their parameters. My concern is about what if passing in a lambda function to these methods would cause heap allocations. For example, consider the following code:

As per my requirement, I download multiple files from server, and I am getting few csv files with below data inside.

I have url to download csv file. I want to check file exists or not before i download it. I did try using HttpWebRequest but it didnot work out. Am i doing anything wrong or is there better option to check file exists or not before download.

I have url to download csv file. I want to check file exists or not before i download it. I did try using HttpWebRequest but it didnot work out. Am i doing anything wrong or is there better option to check file exists or not before download.

private static string GetCellValue(SpreadsheetDocument doc, Cell cell, ref List<ValidationResult> errors) { try{// If the cell does not exist, return an empty string.var result = string.Empty; if (cell == null || doc?.WorkbookPart?.SharedStringTablePart?.SharedStringTable == null) { return null; } if (cell.DataType != null && cell.DataType.Value == CellValues.SharedString) { var sharedStringTable = doc.WorkbookPart.SharedStringTablePart.SharedStringTable; if (int.TryParse(cell.CellValue?.InnerText, out int index) […]

I am currently trying to decide between the two options below. I am using the Worker class, which inherits from BackgroundService. The way I see it, I have three options to handle cleaning up my windows service when a shutdown request is received:

I need to add keys into Configuration for multi-tenants azure function while the function is executing.
For example :

I need to add keys into Configuration for multi-tenants azure function while the function is executing.
For example :

I want to do something like this