如何创建文件夹名称？ [英] How to create folder name?

问题描述

我创建了文件夹，但我想以这种方式命名你。



我尝试过：



我创建文件夹，但我想以这种方式命名。



例如

I create folder but I'd like to name you this way.

What I have tried:

I create folder but I'd like to name you this way.

For example

Table Student

    ID   NAME  SURNAME
    1    Alex   John

代码是：

Code is:

string folder="StudentInformation";
    
    Directory.CreateDirectory(Path + folder);

**所以文件夹名称是** StudentInformation



但**我想要StudentInformation1 **因为我想获得1对1 ID < br $>

**so folder name is** StudentInformation

but **I want to StudentInformation1** because I want to get 1 for 1 ID

ID   NAME  SURNAME
     1    Alex   John
    
     2    Marry  Emily

我想要的名字是** StudentInformation2 **，因为ID是2.如果id是我想要的，我希望id为接下来。



我想创建一个文件夹，我想根据表格中的最后一个id来命名它。我怎么能这样做。

I want to name is **StudentInformation2** because ID is 2.If id is what I want, I want id to be next.

I want to create a folder and I want to name it according to the last id value in the table.How can I do it.

推荐答案

尝试 Path.Combine方法（System.IO）| Microsoft Docs [ ^ ]

Try the Path.Combine Method (System.IO) | Microsoft Docs[^]

string fullPath = Path.Combine(yourPath, folderName);

你可以尝试这个，这是假设表学生在数据库中....您可以根据需要更改DataTable源。

You can try this out, which was written under the assumption that Table Student is in a database.... You can alter the DataTable source as you need.

DataTable dt = new DataTable();

using (SqlConnection conn = new SqlConnection(YourConnectionString)) {
	SqlCommand cmd = new SqlCommand("SELECT [ID] FROM [Student]", conn);
	conn.Open()
	SqlDataReader dr = cmd.ExecuteReader();
	if (dr.HasRows) { dt.Load(dr); }
	conn.Close();
}

foreach(DataRow row in dt.Rows) {
	string folder="StudentInformation" + row["ID"].ToString();
	Directory.CreateDirectory(Path + folder);
}

好的，我们假设你有一个名为 Studen 的实体和这个实体有一个名为 ID 的属性/属性，不知怎的，你想要在你的实体的文件系统中创建一个文件夹。



解决方案：

Ok, let's assume that you have an entity called Studen and this entity has an attribute/property called ID and somehow you reach a point that you want to create a folder in file-system for your entity.

Solution:

//Model is your entity context which contains all students.<br />
Student student = Model.Students.FirstOrDefault(); <br />
string folder="StudentInformation";  <br />
Directory.CreateDirectory(Path + folder + sudent.ID.ToString());<br />

干杯，

AH

Cheers,
AH

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