So I've been trying to figure out how to bring an entire line of a .csv file but only the ones who's first string matches another one.
This is what I got so far, all im getting back in my listbox is info from the same random line.
If you guys can help me with the logic it would help out a lot thanks
cbocustinfo.Items.Clear();
lstcustinfo.Items.Clear();
StreamReader infile, transdata;
infile = File.OpenText(#"E:\AS2customers.csv");
transdata= File.OpenText(#"E:\AS2data.csv");
string[] custinfo, names;
string[] custtrans;
do
{
custtrans = transdata.ReadLine().Split(',');
if (custinfo[1] == custtrans[0])
{
lstcustinfo.Items.Add(custtrans[3] + " " + custtrans[4]);
}
}
while (transdata.EndOfStream != True);
infile.Close();
transdata.Close();
Here is where I initialize custinfo
do
{
custinfo = infile.ReadLine().Split(',');
names = custinfo[0].Split(' ');
cbocustinfo.Items.Add(names[0] +" "+ names[1]+ " " + custinfo[1]);
}
while (infile.EndOfStream != true);
If I understand what you're trying to do correctly, maybe it would be easier to just read the files into two strings, then do the splitting and looping over those. I don't know your file formats, so this may be doing unnecessary processing (looping through all the transactions for every customer).
For example:
cbocustinfo.Items.Clear();
lstcustinfo.Items.Clear();
var customers = File.ReadAllText(#"E:\AS2customers.csv")
.Split(new []{Environment.NewLine}, StringSplitOptions.None);
var transactions = File.ReadAllText(#"E:\AS2data.csv")
.Split(new []{Environment.NewLine}, StringSplitOptions.None);
foreach (var customer in customers)
{
var custInfo = customer.Split(',');
var names = custInfo[0].Split(' ');
cbocustinfo.Items.Add(names[0] + " " + names[1]+ " " + custinfo[1]);
foreach (var transaction in transactions)
{
var transInfo = transaction.Split(',');
if (custInfo[1] == transInfo[0])
{
lstcustinfo.Items.Add(transInfo[3] + " " + transInfo[4]);
}
}
}
I've been trying to figure out a way for the program to read all of the files from the path or zip file as input. Than read all of the file names inside of the input folder and split it so I can get information such as what is product id and chip name. Than store the pdf file in the correct db that matches with the product id and chip name.
The product id would be KHSA1234C and chip name LK454154.
Example File name: N3405-H-KAD_K-KHSA1234C-542164143_LK454154_GFK.pdf
public void btnUploadAttach_Click(object sender, EventArgs e)
{
string fName = this.FileUploadCFC.FileName;
string path = #"C:\mydir\";
string result;
result = Path.GetFileNameWithoutExtension(fName);
Console.WriteLine("GetFileNameWithoutExtension('{0}') return '{1}'",
fName, result);
result = Path.GetFileName(path);
Console.WriteLine("GetFileName('{0}') return '{1}'", path, result);
string[] sSplitFileName = fName.ToUpper().Split("-".ToCharArray());
foreach (char file in fName)
{
try
{
result = sSplitFileName[0] + "_" + sSplitFileName[1] + "-" +
sSplitFileName[2] + "_" + sSplitFileName[3] + "_" +
sSplitFileName[4] + "_" + sSplitFileName[5] + "_" +
sSplitFileName[6];
}
catch
{
return;
}
}
}
I don't know if I'm on the right track or not.
Can someone help me? Thank you.
first of all, in order to read all files in a folder you should use Directory.GetFiles, then you will iterate through this folder's files. Then you split file name's.. here you go..
using System.IO;
..
..
..
static void Main(string[] args)
{
string[] filePaths = Directory.GetFiles(#"c:\", "*.pdf");
string result;
foreach (var file in filePaths)
{
result = Path.GetFileNameWithoutExtension(file);
Console.WriteLine("GetFileNameWithoutExtension('{0}') return '{1}'",
file, result);
var sSplitFileName = file.ToUpper().Split('-');
var i = 0;
foreach (var item in sSplitFileName)
{
if (i == 3)
//it is product id
if (i == 7)
//it is chip name
i++;
}
}
}
To make a affirmative statement: You are on the right track - but not there yet :-)
First you need to read the files from your path, you don't do this currently.
Directory.GetFiles() may be the thing to search for. This will return a list of filenames as string[] array.
The you need to iterate over the files and apply the splitting, which looks ok to me in your code.
When you have the parts of your file, you want to decide on the database to use. It may be wise to split the filename your own filename class, that exposes properties for each part of the filename, but this is not required.
Next you need to get the db programming right, there are numerous examples on how to do this. Good luck :-)
Assuming the files all follow the same pattern you can probably just split on all of the deliminator characters '-' and '_'.
class Program
{
static void Main(string[] args)
{
string[] files = Directory.GetFiles(#"C:\mydir\", "*.pdf");
foreach (var file in files)
{
var fileName = Path.GetFileNameWithoutExtension(file);
var tokens = fileName.Split('-', '_');
for(int i=0;i<tokens.Length;i++)
{
string token = tokens[i];
Console.WriteLine("{0}-{1}", i, token);
}
Console.WriteLine();
}
Console.ReadLine();
}
}
I'm trying to split an array, which gets its data from a list string. I've managed to split the string, but I can't seem to work out how to use each element of the split string separately. Here's what I have:
DriveInfo[] loadedDrives = DriveInfo.GetDrives();
foreach (DriveInfo ld in loadedDrives)
{
if (ld.DriveType == DriveType.Removable)
{
if (ld.IsReady == true)
{
deviceInfo.Add(ld.VolumeLabel + ": , " + ld.TotalSize + ": , " + ld.AvailableFreeSpace + ": , " + ld.DriveFormat); //Add data to list
}
}
}
foreach (String st in deviceInfo)
{
string[] deviceSel;
deviceSel = st.Split(splitChar);
string toDisplay = string.Join(Environment.NewLine, deviceSel);
MessageBox.Show(toDisplay);
}
Now the output I get from this is something like:
USB Device Name
Total Storage Size
Total Free Space
Type of Drive Format
These change depending on the USB in question. Is there a way that I can get each one of those points in separate variables, or is there a better way to what I have done?
Would something like this work:
deviceSel = st.Split(splitChar);
string toDisplay = "";
foreach (string device in deviceSel)
{
toDisplay += device + Environment.NewLine;
}
MessageBox.Show(toDisplay);
You can either do it in a loop or access based on index as #dasblinkenlight suggested.
Struggling with a C# Component. What I am trying to do is take a column that is ntext in my input source which is delimited with pipes, and then write the array to a text file. When I run my component my output looks like this:
DealerID,StockNumber,Option
161552,P1427,Microsoft.SqlServer.Dts.Pipeline.BlobColumn
Ive been working with the GetBlobData method and im struggling with it. Any help with be greatly appreciated! Here is the full script:
public override void Input0_ProcessInputRow(Input0Buffer Row)
{
string vehicleoptionsdelimited = Row.Options.ToString();
//string OptionBlob = Row.Options.GetBlobData(int ;
//string vehicleoptionsdelimited = System.Text.Encoding.GetEncoding(Row.Options.ColumnInfo.CodePage).GetChars(OptionBlob);
string[] option = vehicleoptionsdelimited.Split('|');
string path = #"C:\Users\User\Desktop\Local_DS_CSVs\";
string[] headerline =
{
"DealerID" + "," + "StockNumber" + "," + "Option"
};
System.IO.File.WriteAllLines(path + "OptionInput.txt", headerline);
using (System.IO.StreamWriter file = new System.IO.StreamWriter(path + "OptionInput.txt", true))
{
foreach (string s in option)
{
file.WriteLine(Row.DealerID.ToString() + "," + Row.StockNumber.ToString() + "," + s);
}
}
Try using
BlobToString(Row.Options)
using this function:
private string BlobToString(BlobColumn blob)
{
string result = "";
try
{
if (blob != null)
{
result = System.Text.Encoding.Unicode.GetString(blob.GetBlobData(0, Convert.ToInt32(blob.Length)));
}
}
catch (Exception ex)
{
result = ex.Message;
}
return result;
}
Adapted from:
http://mscrmtech.com/201001257/converting-microsoftsqlserverdtspipelineblobcolumn-to-string-in-ssis-using-c
Another very easy solution to this problem, because it is a total PITA, is to route the error output to a derived column component and cast your blob data to a to a STR or WSTR as a new column.
Route the output of that to your script component and the data will come in as an additional column on the pipeline ready for you to parse.
This will probably only work if your data is less than 8000 characters long.
The following code writes the data and is working fine, but I want to add more than one client (maybe 10) in the .csv file. How can I achieve this. Thanks in advance.
private void createFileButton_Click(object sender, EventArgs e)
{
string newFileName = "C:\\client_20100913.csv";
string clientDetails = clientNameTextBox.Text + "," + mIDTextBox.Text + "," + billToTextBox.Text;
//Header of the .csv File
string clientHeader = "Client Name(ie. Billto_desc)" + "," + "Mid_id,billing number(ie billto_id)" + "," + "business unit id" + Environment.NewLine;
File.WriteAllText(newFileName, clientHeader);
File.AppendAllText(newFileName, clientDetails);
MessageBox.Show("Client Added", "Added", MessageBoxButtons.OK);
}
If you want to append the client information to an existing file, how about:
string newFileName = "C:\\client_20100913.csv";
string clientDetails = clientNameTextBox.Text + "," + mIDTextBox.Text + "," + billToTextBox.Text;
if (!File.Exists(newFileName))
{
string clientHeader = "Client Name(ie. Billto_desc)" + "," + "Mid_id,billing number(ie billto_id)" + "," + "business unit id" + Environment.NewLine;
File.WriteAllText(newFileName, clientHeader);
}
File.AppendAllText(newFileName, clientDetails);
This way the header line is only written the first time, when the file is created.
Although it would probably be even nicer to provide a list-detail view that lets you view all clients, add and remove clients, select a client to edit details, and save the complete file with all clients.
It looks to me like you want a new client to be added every time you click the button.
If that's the case, the reason why it doesn't work currently is that the file is being cleared by the line
File.WriteAllText(newFileName, clientHeader);
The simplest change would be to check if the file exists before writing over it:
if (!File.Exists(newFileName))
{
//Header of the .csv File
string clientHeader = "Client Name(ie. Billto_desc)" + "," + "Mid_id,billing number(ie billto_id)" + "," + "business unit id" + Environment.NewLine;
File.WriteAllText(newFileName, clientHeader);
}
Although you could use other strategies, such as creating the file on startup of the application and keeping it open (using something like a StreamWriter). You would then close the writer when your application exited. This would pretty much guarantee that the file couldn't be messed with while your application is open.
You might want to do this because there is a race condition in that code - after you check the file exists, and before you write to the file, a user could delete it. Keeping the file open helps to avoid this, but you may or may not want to do it.
The underlying problem here seems to be where you're getting the data from to append to your CSV file. Your example code looks like it gets the various pieces of data from text boxes on the page, so if you want multiple clients, are they all going to have their data on the screen in text boxes? My instinct is probably not.
It sounds to me like you should be handling this client data using a class of some sort (perhaps persisted in a database) and then implement a method in the class called something like void AppendToCSV(string filename), which appends that client data to the CSV file. Then you can loop over your client objects, appending each one in turn.
How you produce/store your client objects, in relation to the text boxes you have on the screen, depends on what your app is trying to achieve.
I know this has been answered but there is what i did to create a "log" of subscribers. This uses reflection to get the properties and values of the object. Hope this helps someone in the future.
internal static bool UpdateSubscriberList(MailingListEmail subscriber)
{
PropertyInfo[] propertyinfo;
propertyinfo = typeof(MailingListEmail).GetProperties();
var values = string.Empty;
try
{
string fileName = #"C:\Development\test.csv";
if (!File.Exists(fileName))
{
var header = string.Empty;
foreach (var prop in propertyinfo)
{
if (string.IsNullOrEmpty(header))
header += prop.Name;
else
header = string.Format("{0},{1}", header, prop.Name);
}
header = string.Format("{0},{1}", header, "CreatedDate");
header += Environment.NewLine;
File.WriteAllText(fileName, header);
}
foreach (var prop in propertyinfo)
{
var value = prop.GetValue(subscriber, null);
if (string.IsNullOrEmpty(values))
values += value;
else
values = string.Format("{0},{1}", values, value);
}
values = string.Format("{0},{1}", values, DateTime.Now.ToShortDateString());
values += Environment.NewLine;
File.AppendAllText(fileName, values);
}
catch (Exception ex)
{
Elmah.ErrorSignal.FromCurrentContext().Raise(ex);
return false;
}
return true;
}
here is what i have done, and it works for me perfectly :
first you need to creat DataTable from your listview, or just put data from textboxes:
`public Boolean PreparCVS(string DateOne, string DataTwo)
{
try
{
// Create the `DataTable` structure according to your data source
DataTable table = new DataTable();
table.Columns.Add("HeaderOne", typeof(string));
table.Columns.Add("HeaderTwo", typeof(String));
// Iterate through data source object and fill the table
table.Rows.Add(HeaderOne, HeaderTwo);
//Creat CSV File
CreateCSVFile(table, sCsvFilePath);
return true;
}
catch (Exception ex)
{
throw new System.Exception(ex.Message);
}
}`
once dataTable is created you can generate CSV file by this method :
in the streamwriter constructor you must specify in the second parameter True, by this, you can append data to you existing .csv file :
public void CreateCSVFile(DataTable dt, string strFilePath)
{
StreamWriter sw = new StreamWriter(strFilePath, true);
int iColCount = dt.Columns.Count;
for (int i = 0; i < iColCount; i++)
{
sw.Write(dt.Columns[i]);
if (i < iColCount - 1)
{
sw.Write(",");
}
}
sw.Write(sw.NewLine);
foreach (DataRow dr in dt.Rows)
{
for (int i = 0; i < iColCount; i++)
{
if (!Convert.IsDBNull(dr[i]))
{
sw.Write(dr[i].ToString());
}
if (i < iColCount - 1)
{
sw.Write(",");
}
}
sw.Write(sw.NewLine);
}
sw.Close();
}
// At first read all the data from your first CSV
StreamReader oStreamReader = new StreamReader(#"d:\test\SourceFile.csv");
string recordsFromFirstFile = oStreamReader.ReadToEnd();
oStreamReader.Close();
// Now read the new records from your another csv file
oStreamReader = new StreamReader(#"d:\test\DestinationFile.csv");
string recordsFromSecondFile = oStreamReader.ReadToEnd();
oStreamReader.Close();
oStreamReader.Dispose();
// Here Records from second file will also contain column headers so we need to truncate them using Substring() method
recordsFromSecondFile = recordsFromSecondFile.Substring(recordsFromSecondFile.IndexOf('\n') + 1);
// Now merge the records either in SourceFile.csv or in Targetfile.csv or as per your required file
StreamWriter oStreamWriter= new StreamWriter(#"d:\testdata\TargetFile.csv");
oStreamWriter.Write(recordsFromFirstFile + recordsFromSecondFile);
oStreamWriter.Close();
oStreamWriter.Dispose();
Happy Coding.....
c#csv
using CsvHelper;
public void WriteDataToCsv(MsgEnvironmentData[] data, string csvPath)
{
if (!File.Exists(csvPath))
{
using (var writer = new StreamWriter(csvPath))
using (var csvWriter = new CsvWriter(writer,firstConfiguration))
{
csvWriter.WriteHeader<MsgEnvironmentData>();
csvWriter.NextRecord();
csvWriter.WriteRecords(data);
}
}
else
{
using (var stream = new FileStream(csvPath, FileMode.Append))
using (var writer = new StreamWriter(stream))
using (var csvWriter = new CsvWriter(writer, secondConfiguration))
{
csvWriter.WriteRecords(data);
}
}
}
Jeramy's answer writing the contents on last cell and from their horizontally in a row in csv file. I mixed and matched his solution with answer given here. I know this questions been asked long before but for the ones who doing research I'm posting the answer here.
string newFileName = #"C:\.NET\test.csv"; //filepath
var csv = new StringBuilder();
string clientDetails = "content1,content2,content3" + Environment.NewLine;
csv.Append(clientDetails);
File.AppendAllText(newFileName, csv.ToString());
I use this simple piece of code to append data to an existing CSV file:
string[] data = { "John", "Doe", "25" };
string csvFilePath = "example.csv";
// Open the file for writing
using (StreamWriter writer = File.AppendText(csvFilePath))
{
// Write the data row
writer.WriteLine(string.Join(",", data));
}