If a folder does not exist, create it

Just write this line:

System.IO.Directory.CreateDirectory("my folder");

- If the folder does **not exist yet**, it will be **created**.
- If the folder **exists already**, the line will be **ignored**.

Reference: [Article about Directory.CreateDirectory at MSDN][1]

*Of course, you can also write `using System.IO;` at the top of the source file and then just write `Directory.CreateDirectory("my folder");` every time you want to create a folder.*

[1]:

[To see links please register here]

This method will create the folder if it does not exist and do nothing if it exists:

Directory.CreateDirectory(path);

Use the below code. I use this code for file copy and creating a new folder.

string fileToCopy = "filelocation\\file_name.txt";
String server = Environment.UserName;
string newLocation = "C:\\Users\\" + server + "\\Pictures\\Tenders\\file_name.txt";
string folderLocation = "C:\\Users\\" + server + "\\Pictures\\Tenders\\";
bool exists = System.IO.Directory.Exists(folderLocation);

if (!exists)
{
System.IO.Directory.CreateDirectory(folderLocation);
if (System.IO.File.Exists(fileToCopy))
{
MessageBox.Show("file copied");
System.IO.File.Copy(fileToCopy, newLocation, true);
}
else
{
MessageBox.Show("no such files");
}
}

The following code is the best line(s) of code I use that will create the directory if not present.

System.IO.Directory.CreateDirectory(HttpContext.Current.Server.MapPath("~/temp/"));

If the directory already exists, this method does not create a new directory, but it returns a DirectoryInfo object for the existing directory. [>][1]

[1]:

[To see links please register here]

## Create a new folder, given a parent folder's path:

string pathToNewFolder = System.IO.Path.Combine(parentFolderPath, "NewSubFolder");
DirectoryInfo directory = Directory.CreateDirectory(pathToNewFolder);
// Will create if does not already exist (otherwise will ignore)

- path to new folder given
- directory information variable so you can continue to manipulate it as you please.

**Use this code if the folder is not presented under the image folder or other folders**

string subPath = HttpContext.Current.Server.MapPath(@"~/Images/RequisitionBarCode/");

bool exists = System.IO.Directory.Exists(subPath);
if(!exists)
System.IO.Directory.CreateDirectory(subPath);

string path = HttpContext.Current.Server.MapPath(@"~/Images/RequisitionBarCode/" + OrderId + ".png");

##### Use **`System.IO.Directory.CreateDirectory`**.

<br>

According to the official [".NET" docs][1], you don't need to check if it exists first.

> ##### [System.io][2]   >   [Directory][3]   >   [Directory.CreateDirectory][1]
> Any and all directories specified in `path` are created, unless they already exist or unless some part of `path` is invalid. If the directory already exists, this method does not create a new directory, but it returns a `DirectoryInfo` object for the existing directory.
> ######         ***[— learn.microsoft.com/dotnet/api/][4]***
----------------------------------------


[1]:

[To see links please register here]

[2]:

[To see links please register here]

[3]:

[To see links please register here]

[4]:

[To see links please register here]