在asp.net中 把一个文本文档的中的数据一行一行添加到textbox中

先把文本文档上传到服务器上用viewstate保存路径

/// <summary>

/// 上传文件

/// </summary>

/// <returns></returns>

public bool StartPostFile()

{

bool mark = true;

string fileName = this.fuText.FileName;

string fileType = fileName.Substring(fileName.LastIndexOf('.'));

if (fileType == ".txt" && fuText.PostedFile.ContentLength <= 2097152)

{

string tempFileName = Guid.NewGuid().ToString();

string tempFilePath = Server.MapPath("TempFiles/") + tempFileName + ".txt";

ViewState["tempFileP"] = tempFilePath;

this.fuText.PostedFile.SaveAs(tempFilePath);

}

else

{

mark = false;

this.Page.ClientScript.RegisterStartupScript(this.GetType(), "zz", "alert('文件导入失败,请确保文件为excel文件，并且文件不大于2MB')", true);

}

return mark;

}

然后读取文本中内容，一行一行读取数据(有要求必须是一行一行的)

/// <summary>

/// 文本的导入

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

protected void btnText_Click(object sender, EventArgs e)

{

if (StartPostFile())

{

int result = 0;//显示添加的行数

string path = ViewState["tempFileP"].ToString();

StreamReader srReadLine = new StreamReader((System.IO.Stream)File.OpenRead(path),System.Text.Encoding.ASCII);

srReadLine.BaseStream.Seek(0, SeekOrigin.Begin);

while (srReadLine.Peek() > -1)

{

result++;

this.txtNames.Text += srReadLine.ReadLine() + "/n";

}

srReadLine.Close();

int count = Convert.ToInt32(this.lblCount.Text);

this.lblCount.Text = count + result+"";//总共的行数

}

}