Develop Reference

Saving files to a folder with a numeric system C#

I am having some trouble with my program. Is there anyway to store an array to a file but every file have a different name. For Example:
1.txt
2.txt
3.txt
4.txt
I am using Visual Studio 2019 and Coding in C#. This is some of the code im using:
string selectedsite = this.comboBox1.GetItemText(this.comboBox1.SelectedItem);
string selectedsize = this.comboBox1.GetItemText(this.comboBox2.SelectedItem);
string selectedproduct = this.comboBox1.GetItemText(this.comboBox3.SelectedItem);
string selectedproxies = this.comboBox1.GetItemText(this.comboBox4.SelectedItem);
string selectedprofiles = this.comboBox1.GetItemText(this.comboBox5.SelectedItem);
string path = "d:\\bot\\bot\\Task.txt";
string[] FileInfo = { selectedsite," ", selectedsize, " ", selectedproduct, " ", selectedproxies, " ", selectedprofiles };

You can use File.WriteAllLines method to store an array to a file and every file have a different name.
Here is a code example you can refer to.
int count = 1;
string path =#"C:\Users\Desktop\Test\{0}.txt";
private void button2_Click(object sender, EventArgs e)
{
while (System.IO.File.Exists(string.Format(#"C:\Users\Desktop\Test\{0}.txt", count)))
{
count++;
}
string selectedsite = this.comboBox1.GetItemText(this.comboBox1.SelectedItem);
string selectedsize = this.comboBox1.GetItemText(this.comboBox2.SelectedItem);
string selectedproduct = this.comboBox1.GetItemText(this.comboBox3.SelectedItem);
string selectedproxies = this.comboBox1.GetItemText(this.comboBox4.SelectedItem);
string selectedprofiles = this.comboBox1.GetItemText(this.comboBox5.SelectedItem);
string[] FileInfo = { selectedsite, " ", selectedsize, " ", selectedproduct, " ", selectedproxies, " ", selectedprofiles };
var newFileName = string.Format(#"C:\Users\Desktop\Test\{0}.txt", count);
count++;
System.IO.File.WriteAllLines(newFileName, FileInfo);
}

How to save multiple image names into database by using dropzone?

I am using dropzone to upload the images. image will be uploaded to server folder while image name will be saved in database table.
here is my code :
public class FormUploader_dz : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string dirFullPath = HttpContext.Current.Server.MapPath("/images/");
string[] files;
int numFiles;
files = System.IO.Directory.GetFiles(dirFullPath);
numFiles = files.Length;
numFiles = numFiles + 1;
string str_image = "";
foreach (string s in context.Request.Files)
{
HttpPostedFile file = context.Request.Files[s];
// int fileSizeInBytes = file.ContentLength;
string fileName = file.FileName;
string fileExtension = file.ContentType;
if (!string.IsNullOrEmpty(fileName))
{
fileExtension = System.IO.Path.GetExtension(fileName);
str_image = "MyPHOTO_" + numFiles.ToString() + fileExtension;
string pathToSave_100 = HttpContext.Current.Server.MapPath("/images/") + str_image;
file.SaveAs(pathToSave_100);
Service.SaveImage(strFileName, context.Session["Id"].ToString());
}
}
context.Response.Write(str_image);
}
public bool IsReusable
{
get
{
return false;
}
}
}
Service file code : which will insert image name into table.
public static void SaveImage(string strImage, string Id)
{
string strSql = #"update tablename set image=#image where id=#Id
";
SqlParameter[] objSqlParameter ={
new SqlParameter("#image",strImage),
new SqlParameter("#Id",Id)
};
SqlHelper.ExecuteNonQuery(strConnectionString, CommandType.Text, strSql, objSqlParameter);
}
Now here problem is i have 4 columns in table to save 4 different image name. what i am actually doing is allowing user to upload max 4 images. i have 4 columns as img1, img2, img3, img4.
here how to insert/update image name into table, as their are 4 diffrent columns for images!
here if user wants he can upload 4 images. so how to decide that in which column the image name will go?????
any suggestions??????

I am not sure about the exact syntax but something like this could work.
// **********************************
int counter = 0; // set up the counter
// **********************************
foreach (string s in context.Request.Files)
{
HttpPostedFile file = context.Request.Files[s];
// int fileSizeInBytes = file.ContentLength;
string fileName = file.FileName;
string fileExtension = file.ContentType;
if (!string.IsNullOrEmpty(fileName))
{
// **********************************
counter++; // increment the counter
// **********************************
fileExtension = System.IO.Path.GetExtension(fileName);
str_image = "MyPHOTO_" + numFiles.ToString() + fileExtension;
string pathToSave_100 = HttpContext.Current.Server.MapPath("/images/") + str_image;
file.SaveAs(pathToSave_100);
// **********************************
Service.SaveImage(strFileName, context.Session["Id"].ToString(), counter); // add counter variable to the path.
// **********************************
}
}
// **********************************
// add a column variable and then add it to your column name. like string columnName = "img+columnCount"
// **********************************
public static void SaveImage(string strImage, string Id, int columnCount)
{
// **********************************
string strSql = #"update tablename set img#columnName=#image where id=#Id";
// **********************************
SqlParameter[] objSqlParameter ={
new SqlParameter("#strImage",strImage),
new SqlParameter("#Id",Id)
};
SqlHelper.ExecuteNonQuery(strConnectionString, CommandType.Text, strSql, objSqlParameter);
}

The given path's format is not supported - IE8

Trying to upload an excel file. The code works fine in chrome & firefox. It throws up the above error in IE8. How can I fix this.
private const string ExcelUploadPath = "~/UploadedFiles/";
private void SomeFunction()
{
string dirPath = Server.MapPath(ExcelUploadPath);
string ErrorMsg = SaveUploadedFile(fupCtrl, dirPath)
}
private string SaveUploadedFile(FileUpload fupCtrl, string dirPath)
{
try
{
string sFileName = "";
Random ranObj = null;
int nRandomNum = 0;
ranObj = new Random();
nRandomNum = ranObj.Next();
sFileName = fupCtrl.PostedFile.FileName;
sFileName = sFileName.Substring(0, sFileName.LastIndexOf(".") - 1);
sFileName = sFileName + "_" + nRandomNum.ToString();
sFileName = sFileName +
fupCtrl.FileName.Substring(fupCtrl.FileName.LastIndexOf("."));
fupCtrl.SaveAs(dirPath + sFileName); //exception here
return sFileName;
}
catch (Exception ex)
{
return ex.Message.ToString();
}
}

The FileUpload.PostedFile.FileName returns the full file name on the client (including path)
The Path class offers numerous methods to work with strings that represent paths.
sFileName = Path.GetFileNameWithoutExtension(fupCtrl.PostedFile.FileName);
sFileName += "_" + nRandomNum.ToString();
sFileName += Path.GetExtension(fupCtrl.FileName);
fupCtrl.SaveAs(Path.Combine(dirPath, sFileName));

Try this, it can be work.
private const string ExcelUploadPath = "~//UploadedFiles//";

HttpPostedFile postedFile = context.Request.Files[FileObject];
string filename = Path.GetFileNameWithoutExtension(postedFile.FileName);

How to check parent folder

I have get my website path using HttpRuntime.AppDomainAppPath (like this C:/personal/Website/page.aspx)
Web service is always located on page.aspx parent of parent folder (like this C:/personal/Service/service.asmx ). I get the webservice-path using a ABC.dll in servicePath variable like this string servicePath="C:/personal/Service/service.asmx".
How to check service path against website path?
If (GetWebPath()== GetServicePath())
{
// ... do something
}
private string GetWebPath()
{
string path = HttpRuntime.AppDomainAppPath;
string[] array = path.Split('\\');
string removeString = "";
for(int i = array.Length; --i >= 0; )
{
removeString = array[array.Length - 2];
break;
}
path = path.Replace(#"\" + removeString + #"\", "");
return path;
}
private string GetServicePath()
{
string path = #"C:\MNJ\OLK\ABC.asmx"
string[] array = path.Split('\\');
string removeString = "";
for(int i = array.Length; --i >= 0; )
{
removeString = #"\" + array[array.Length - 2] + #"\" + array[array.Length - 1];
path = path.Replace(removeString, "");
break;
}
return path;
}

string webPath = #"C:\blabla\CS_Web\website\";
string servicePath = #"C:\blabla\CS_Web\SPM\Server.asmx";
if(Path.GetDirectory(Path.GetDirectoryName(servicePath))==Path.GetDirectoryName(webPath)
{
//You do something here
}
You have to up page to parent folder using Path.GetDirectoryName()

Try this:
System.Web.Server.MapPath(webPath);
This will return the physical file path of the currently executing web file.
More information can be found here: System.Web.Server

Providing you want to check the following pathes:
string webPath = #"C:\blabla\CS_Web\website\";
string servicePath = #"C:\blabla\CS_Web\SPM\Server.asmx";
you should call
string webPathParentDir = GetParentDirectoryName(webPath);
string servicePathParentDir = GetParentDirectoryName(servicePath);
if (servicePathParentDir.Equals(webPathParentDir, StringComparison.OrdinalIgnoreCase))
{
// ... do something
}
with method:
private string GetParentDirectoryName(string path)
{
string pathDirectory = Path.GetDirectoryName(servicePath);
return new DirectoryInfo(pathDirectory).Parent.FullName;
}

Change filename on file upload in .net (asp)

How to change file name on upload ?
I have such code :
<%# WebHandler Language="C#" Class="Upload" %>
using System;
using System.Web;
using System.IO;
public class Upload : IHttpHandler {
public void ProcessRequest(HttpContext context) {
HttpPostedFile oFile = context.Request.Files["Filedata"];
string newFileName1 = HttpContext.Current.Server.MapPath(#context.Request["orderID"]);
string newFileName2 = HttpContext.Current.Server.MapPath(#context.Request["productCombinationString"]);
string newName;
if(newFileName2 != "" && newFileName2 != null && newFileName2 != "<!--#Ecom:productCombinationString-->") {
newName = newFileName1 + newFileName2 + oFile.ContentType;
} else {
newName = newFileName1 + oFile.ContentType;
}
string sDirectory = HttpContext.Current.Server.MapPath(#context.Request["folder"]);
oFile.SaveAs(sDirectory + "/" + oFile.FileName);
if (!Directory.Exists(sDirectory)) Directory.CreateDirectory(sDirectory);
context.Response.Write("1");
}
public bool IsReusable {
get { return false; }
}
}
And if i change oFile.Filename to newName it does not work ... what is the problem ? :)
Thank you

You can pass your Custom File Name along with Directory to SaveAs Method
oFile.SaveAs(sDirectory + "/" + "abc");

try:
// Get the extension of the uploaded file.
string fileName = Server.HtmlEncode(FileUpload1.FileName);
string extension = System.IO.Path.GetExtension(fileName);
string newName;
if(newFileName2 != "" && newFileName2 != null && newFileName2 != "<!--#Ecom:productCombinationString-->") {
newName = newFileName1 + newFileName2 + extension ;
} else {
newName = newFileName1 + extension ;
}
oFile.SaveAs(sDirectory + "/" + newName );

I haven't tried this code but I do want to point out two things of from the original code:
The first is this order of operations:
oFile.SaveAs(sDirectory + "/" + oFile.FileName);
if (!Directory.Exists(sDirectory)) Directory.CreateDirectory(sDirectory);
I believe it should be this instead. In the above sequence, there is a potential edge case of saving into a non-existing folder. This ensures that the folder is created:
if (!Directory.Exists(sDirectory))
{
Directory.CreateDirectory(sDirectory);
}
oFile.SaveAs(sDirectory + "/" + oFile.FileName);
The other thing is that you might be running into issues with / as the path separator. I think it should be much safer to do something like:
var saveLocation = Path.Combine(sDirectory, oFile.FileName);
oFile.SaveAs(saveLocation);
I hope this helps!

Here is an example i used when saving an image look at the save as section
////saving file in the physical folder;
FileUpload FileUpload1 = file_Image;
string virtualFolder = "~/Resourceimages/";
string physicalFolder = HostingEnvironment.MapPath(virtualFolder);
string PhotoName = ((string)Session["UserName"] + (string)Session["UserSurname"]);
FileUpload1.SaveAs(physicalFolder + PhotoName + FileUpload1.FileName);
string location = virtualFolder + PhotoName + FileUpload1.FileName;
webservice.UpdateResourceImage((int)Session["UserID"], location);
lbl_Result.Text = "Your file " + FileUpload1.FileName + " has been uploaded.";
Image1.Visible = true;
Image1.ImageUrl = location;

string uploadFolder = Request.PhysicalApplicationPath + "UploadFile\\";
if (FileUpload1.HasFile)
{
string extension = Path.GetExtension(FileUpload1.PostedFile.FileName);
FileUpload1.SaveAs(uploadFolder + "Test"+ extension);
Label1.Text = "File uploaded successfully as: " + "Test"+ extension;
}
else
{
Label1.Text = "First select a file.";
}

private string UpdateFilename(string filename)
{
try
{
filename = Server.HtmlEncode(FUJD.FileName);
string extension = System.IO.Path.GetExtension(filename);
filename = filename.Replace(extension, "");
return filename + '-' + DateTime.Now.ToString("yyyyMMddHHmmss") + extension;
}
catch (Exception ex)
{
throw ex;
}
}