Encrypt Text File - Save Data From Datagridview To Text File
Jul 22, 2009
I save data from datagridview to text file. I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt. Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program
I have two windows vb.net form. I got a text file. I am trying to encrypt some data and save it to a text file with the 1st windows vb.net 2005 form. Now with the second one am trying to decrypt the data and retrieve it here.
This is what i need my program to do...I have a form with 1 textbox and 2 buttons (save and load) If i type information into the textbox and then click save, i need it to encrypt the text first and then save the file to database If i click the load button i need it to decrypt the file and display the decrypted data into the textbox i just need a way to save my text files so the information inside them cant be changed without using my program but yet again i find myself at a loss as to how i do this.
I save data from datagridview to text file . I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt.Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program
I save data from datagridview to text file . I also load the same data from text file into datagridview for edit and update the same thing to text file. Let say this text file i called as Drill.txt. I have another text file called header.txt which need to match its value with the value of Drill.txt file then overwrite value from Drill.txt to header.txt. Now i want to make my Drill.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program How can we do like this?
I have 5 column in my unbound datagridview. after user enter all the values i want to save the content to the text file. I want to save one row as one line of text. Then if user open a gridview and enter dataon it then the new data should append with the previous data in text file. Is that posible to do. How can we do this
Its a League Organizer, basicly ive started it off with 16 teams and end up with 1(winner) 16 box's on the far left, then 8, then 4, then 2, then 1. the 16 box's have "Team 1" "Team 2" etc... ive put a new/clear/open/save button in that order.
BUT this is my problem..when i save(Save Button) the text file saves all the text wrong it ends up like this...Team 1Team 2Team 3Team 4 Etc...
But i want it to save like this
Team 1 Team 2 Team 3 Team 4 Etc...
The code is...
Dim Save As New SaveFileDialog Save.Filter = "Text Files (*.txt)|*.txt|ALL FILES (*.*)|*.*"
I'm using VB.Net 2008 application program.I'm using DataGridView. I have a Print Preview option where i need to print the DataGridView.Using "DataGridView1.Rows.Add" i'm adding rows to datagridview.I'm using this code for Print Preview.[code]If you know how i can Save Print Preview inside text file or Excel, please help me.
I have a question because in my I.O.File. I use this to save the data in the listview in a c: est.txt but the problem is that it only save one data and every time I click the save the previous data that I save is deleted and it change the new one that I save. And also when I click the remove in the listview it will also delete the data that save in the c: est.txt and the format should like this
First name | lastname | address | rae alanah new york john smith los angeles
Here the code that I did... Dim myFile As String = "C: est.txt" '//file location System.IO.File.WriteAllText(myFile, TextBox1.Text & " " & ComboBox1.Text & " " & TextBox4.Text & " " & ComboBox2.Text & " " & TextBox3.Text & " " & TextBox2.Text & " " & TextBox5.Text) Or you can also create new code base on ur understanding. This is the first time I use the I.O file or file stream in vb.net because my crystal report does not detect my database that's why I need to do this.
how to save hashtable object to data or text file like (sample.dat or sample.txt) i got this class Name Book.
[code...]
if i run this application it works, but if i close the application the hashtable items will be erase.i want to save the items to dat file or txt file.i got some idea but it doesnt work, i use the file stream :[code...]
I am interested in knowing if non-text files like .xls/.xlsx or .doc files can be encrypted... From the Devlopers Guide on MSDN, I found code snippets that allow encryption / decryption of .txt files. This works absolutely fine. However, I would like to know if similar procedure can be used to encrypt/decrypt file other than .txt file.
I have created a encryptor/decryptor that allows you to encrypt/decrypt text in a textbox, or a file. The basis of the system is to allow a user to thoroughly protect data within their system. Is there anyone that would be willing to test the program?
I save data from datagridview to text file . I also load the same data from text file into datagridview for edit and update the same thing to text file. Now i want to make my Drill layer header.txt in encrypted format to prevent anyone to open that file and modify out of program. They only can modify it through the program How can we do like this?
This code can encryp the text file. But accrding to this code EncryptFile("c:\Drill Layer Header.txt", _ "c:\Drill Layer Header original1.txt", _ sSecretKey) It ask for input and output file. So it take data from Drill Layer Header then encrypt the save in drill layer header original.txt. I want it to take data from drill layer header and encrypt and save in same file.
[Code] Private Sub SaveFileToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveFileToolStripMenuItem1.Click Dim MyStream As Stream Dim SaveFileDialog1 As New SaveFileDialog() [Code] .....
I wanna save the data present on the form to the text file.I am using vb.net for this. how can i write the text present on the form in the same formate (showing on the form) in the .txt file.
i want to retrieve data from text file and save it to sql database bt i just have to implement some conditions like if there are 3 entries exists in text file with the same ID but i just have to get only 2 of them so in what manner should i write the code....
Dim sbIDs As New System.Text.StringBuilder Dim sbPunchDateStamp As New System.Text.StringBuilder Dim sbPunchTimeStamp As New System.Text.StringBuilder
I am using this code to save my Binding source data to a text file:
Dim sfd As New SaveFileDialog Using sw As New System.IO.StreamWriter(My.Computer.FileSystem.SpecialDirectories.MyMusic & "iFX 2011 Playlists" & TextBox1.Text & ".txt")
I'd like to save data to a text file on a remote server I have. There are no security issues here, just the method.
Dim FILE_NAME As String = "123.456.789.012/variables.txt" If System.IO.File.Exists(FILE_NAME) = True Then Dim objWriter As New System.IO.StreamWriter(FILE_NAME)
[Code].....
I know it's not the most secure way of doing things, but the end data has to be in the txt format, otherwise I'd have used MySQL.
Im new here and hoping that I post this in the right forum. I am SLOWLY learning VB, and have run into a problem that I cant figure out. I have a standard form that you can enter data into.I want to take that data that is entered, and save it to a text file once I click the submit button at the bottom of the form. The form could have up to 500 entries into the form.
So i want to display this data in datagried view. I must display the number beside T to T column, the number beside C to C column and so on. It should only display number in the respective column. It should not display the T,C and so on.
I have the option to save the contents of the listview that was saved into text file.now i would like to load the text file into datagridview in vb.net but i have no idea how to do it as this is my first time in doing it and i had googled around but couldn't find the information i needed.
I would like to encrypt login password and store it inside a text file. But I have no idea how to encrypt it. Can someone show me an example of code so that i can get an idea of how to go about it ?
1) How can I load data from Text file to DatagridView. I want it because I'm making a listener. And when I load a data from text file, i want to edit rows. And this calling the second question. 2) How can I save data, Datagrid to Text file.
I found a code Dim obj_oledb_da As System.Data.Odbc.OdbcDataAdapter Public Function ConnectCSV1(ByVal filetable As String) As DataSet Dim dataSet As New DataSet [Code] ..... I can load data with this code but I can't save.
My Text File must be like this: #IP 127.0.0.1 localhost
I want to export data from a DataGridView to a CSV/text file. I then also want to be able to load that same CSV/text file and populate that same DataGridView at a later point in time. My information is loaded into columns in the DataGridView. That is, I am not using rows to represent records, I am using columns. As such, I need to load all the data in each column and export this, by column to the CSV/Text file. Likewise, when I load the control from the CSV/text file, I need to load each column with this information.How do you export/import from/to a DataGridView controlHow do you organize the data in the CSV/File
I have been using this code, see below, to try and write data from the DataGridView to a text file. It works but it puts an extra comma after each line and thinks that there has been another line so puts an extra 4 commas on a new line. So the text file looks like this:
9,Here to There,1,15, 8,Hell to Heaven,16,34,
I'm looking for any help for a way to get rid of the extra commas or an entirely different way of doing this whole process.
1) How can i load data from Text file to DatagridView.I Want it because i'm making a lister. And when i load a data from text file, i want to edit rows. And this calling the second question.
