can not the string.Empty as the default parameter method?

Question

Hi To all users When the value of  string.Empty  parameter method I use I encountered the following error: Error 1 Default parameter value for 'Name' must be a compile-time constant. public void SetName(string Name = string.Empty) { this.mName = Name; } thanks.

Saroj Kumar Sahu · Answer

Hi You can not use String.Empty because Empty is not a Constantits a ReadOnly Field which is defined as public static readonly string Empty So You can use  instead as below public void SetName(string Name = ) { this.mName = Name; } For more infovisit below link. http://stackoverflow.com/questions/10825423/why-cant-i-use-string-empty-as-a-default-parameter-value

Pankaj Kumar Choudhary · Answer

Hello @Behzad Instead of your method try this public void SetName(string Name) { this.mName= string.Empty ?? Name; }

behzad pakniyat · Answer

Hi Dear user I would not use the default value for the parameter. Check the following links: http://www.dotnetperls.com/optional-parameters https://msdn.microsoft.com/en-us/library/dd264739.aspx thanks.

Ramesh Maruthi · Answer

Hi Behzad public void SetName(string Name) { Name = string.Empty; this.mName = Name; }

can not the "string.Empty" as the default parameter method?