如何在csv文件中创建标题，还要写入登录和注销特定网站的用户凭据 [英] how to create headers in csv file and also write the user credential of login and logout of a specific website

问题描述

如何添加coloumn标头和注销时间，这里需要用户名和登录时间





静态字符串ConvertStringArrayToString（string []数组）

{

StringBuilder builder1 = new StringBuilder（）;

StringBuilder builder = new StringBuilder（）;

builder.Append（'，'）;

foreach（数组中的字符串值）

{

builder.Append（value）;

builder.Append（''）;

}

builder.Append（'，'）;

返回builder.ToString（）;

}



静态字符串ConvertStringArrayToStringJoin（string [] array）

{< br $>
//

//使用字符串Join来连接字符串元素。

//

string result = string .Join（，，array）;

返回结果;

}





protected void Button1_Click（object sender，EventArgs e）

{

string filePath = Server.MapPath（〜/ Text1.csv）;



string tm = DateTime.Now.ToString（） ;



会话[tm] = tm;





StringBuilder builder = new StringBuilder（）;



string [] contents = new string [8];

contents [0] = Environment。 NewLine;

contents [1] = txtUserName.Text +，;

contents [2] = DateTime.Now.ToString（）;

contents [3] = Environment.NewLine;

string Final = ConvertStringArrayToString（contents）;

System.IO.File.AppendAllText（Server.MapPath（〜/ Text1.csv），Final）;



//重置（）;

}

how add the coloumn headers and logout timings ,here it takes username and login time


static string ConvertStringArrayToString(string[] array)
{
StringBuilder builder1 = new StringBuilder();
StringBuilder builder = new StringBuilder();
builder.Append(',');
foreach (string value in array)
{
builder.Append(value);
builder.Append(' ');
}
builder.Append(',');
return builder.ToString();
}

static string ConvertStringArrayToStringJoin(string[] array)
{
//
// Use string Join to concatenate the string elements.
//
string result = string.Join(",", array);
return result;
}


protected void Button1_Click(object sender, EventArgs e)
{
string filePath = Server.MapPath("~/Text1.csv");

string tm = DateTime.Now.ToString();

Session["tm"] = tm;


StringBuilder builder = new StringBuilder();

string[] contents = new string[8];
contents[0] = Environment.NewLine;
contents[1] = txtUserName.Text + ",";
contents[2] = DateTime.Now.ToString();
contents[3] = Environment.NewLine;
string Final = ConvertStringArrayToString(contents);
System.IO.File.AppendAllText(Server.MapPath("~/Text1.csv"), Final);

//Reset();
}

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