If there is any way to open large rtf files in rich text text box ?when i try to open a large rtf file in rich text box it halt the system unlike windows word pad . win word pad open file smoothly may be read line by line how it possible in vb.net?
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I saved a file with the extension .doc. I use the RichText to write and save the text. I did not set any encoding type when I saved it. When I tried to open the file in the Richtextbox again, I got all the formatting characters in the RTF file. How do I correct this? How do I open and re-open a .doc file in the Rich Text box control without the formatting showing up in the box with the document contents?
View 4 RepliesI'm working on an application like WordPad but my problem is when I try to open a rich text file even though it contains colored text the whole text shows up in black unlike WordPad.
View 5 RepliesHow to Use of Backgroundworker while open a large text file
View 3 RepliesI would like to step through each *.txt file in a given directory, open it, find and replace all, perhaps a thousand, occurances of a given string (e.g. "00/00/00"), then close and save file, and step to next one in the directory to do the same find and replace. I've been looking at filestream classes and regular expressions but don't see a clear way to do this.
View 4 RepliesI have ~ 1 page how to that is currently in a text file which I want to add to a richtext box.I am just wondering if there is some way I can just copy/paste it so it keeps its formatting etc.
View 1 RepliesHow in the world do i save/open a rich text file (.doc .txt or other) that can work in a Windows Forms Project. They should be able to click a button to open, and one to save. How do i do this?
View 2 RepliesI am wanting to display the contents of the open CMD window in my Rich Text Box.
View 7 RepliesHi, i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated.This is the code im using right now:
Private Sub TreeView1_NodeMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Select Case e.Node.Index
Case 0
[code]....
Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
i'm trying to use the treeview to display the text of a rtf (rich text file) file when an specific node if clicked.HomeOMGWOOTFor example, if i pick OMG, i want the text of lol.rtf to be displayed on a richtextbox. But somehow i just can't manage to get it... I know to import the text of a .txt file to a textbox, but using the treeview makes it more complicated. [code] Another thing is, that i can't import the *.rtf text into a richtextbox and i don't know why.
View 3 RepliesI am unable to load rich text files into my rich text box. It worked fine yesterday, would there have been anything I could have changed by accident?
With OpenFileDialog
.Filter = "Text format (*.txt)|*.txt|Rich Text Format (*.rtf)|*.rtf|All files (*.*)|*.*"
[Code]...
but I am getting the error File format is not valid when i attempt to open any Rich Text file
That title is really confusing I know. But I will try and make sense of this.If you drag a file onto a rich text box, it will add this little watermark-ish thing with the file extensions icon, and the file name.
Is there a way that I can get that files address, upon a certain event?
I have a rich text box which I use in order the user is able to add pictures, coloured writing, different font etc... however I need to load specific text in the rich text box when the user load the Form.how I can add (I guess) the HTML to load this every time the user load the form.
P.S the text will change depending on who loads the form so I can not do a simple
RichTextBox1.LoadFile("C:Documents and SettingsDesktopSigniture.rtf")
I want to be able to save anything the user typed in the rich text box in my form into a .txt file in a location of their choosing after using the 'Save' option on the menu.[code]...
View 6 RepliesWhile displaying the .RTF file in rich text box control. It displays all the rtf formatting strings. how to display rich text in rich text box control.
View 21 RepliesI have created a text editor that enables the user to create and open both txt files and rich text files.When it comes to opening files, the text files are opening fine, but when it comes to rich text they are opening like this
{
tf1adeflang1025ansiansicpg1252uc1adeff31507deff0stshfdbch31506stshfloch31506stshfhich31506stshfbi31507deflang2057deflangfe2057 hemelang2057 hemelangfe0 hemelangcs0{fonttbl{f0fbidi fromanfcharset0fprq2{*panose 02020603050405020304}Times New Roman;}{f34fbidi fromanfcharset1fprq2{*panose 02040503050406030204}Cambria Math;}
[code]....
I am doing a data migration from Lotus notes to another type of software that does not support Rich Text Fields.I am trying to write a VB 2005 program that will take any rich text fields that are found and place them into an RTF file - which will be uploaded as an attachment in the new software.I cannot get the program to take the rich text formating or objects to the RTF file, only the plain text.I have tried everything under the sun using the COM library to get these objects out to no avail.
View 2 RepliesI am doing a data migration from Lotus notes to another type of software that does not support Rich Text Fields. I am trying to write a VB 2005 program that will take any rich text fields that are found and place them into an RTF file - which will be uploaded as an attachment in the new software
View 14 Repliesin saving the contents of a rich textbox into a batch file. The code that I written save it fines but when I open the batch file it seems to not recognize it as a batch file. Here is the code below:
Try
Dim savefiledialog1 As New SaveFileDialog
savefiledialog1.Title = "Save As Batch File"
[code].....
I have 2 files:
1.) fname (original file)
2.) TempHeader.txt (Header)
In my program, I'm reading each file with the StreamReader, then prepending the header onto the original file to create a 3rd file which is the combination of the two. My problem is that the original file contains the following:
[Code]...
My problem is I have very large text files (approx 2GBs+).They have records in them based in one per line.Each line is not the same length and the data can be different lengths all the time.I am currently reading the file line by line, then splitting the data by common characters in the records. To process the full file it currently takes 3hours. This is way too slow for its purpose.
View 4 RepliesI've a problem reading text file using StreamReader. The file have between 500 000 and 1 000 000 lines.When I try to read it in a cycle, I get an error. That's why I've tried the StreamReader.ReadToEnd method. It worked fine. I've get the entire contents of the file in one string. So far everything is okay, but I've a small problem searching this huge string. I have to reformat the string to my desired format. I'll try to be more specific: The format of the input file is as follows:
50471100 8 2 6 5 0<LF><CR>
00000016 365442 12231<LF><CR>
00000026 112166 31133<LF><CR>
<end>
[Code]...
I have a .rtf file, where I paste a row copied from excel, It looks fine (all content in each cell is wrapped and multiline). But When I open through VB.Net, i am not seeing the multiline rows which it is in .rtf file. It looks like the content comes out of the box and seams like the text coming out of the cell. Is there any way to display the content of a .rtf file in a Rich Text Box in VB.Net 2008. The below shown code used to get content from .rtf file and put in a Rich Text Box.[code]
View 1 RepliesI am faced with a rather large text file (200-400 lines)The file displays a lot of data however the problem is that it is not lined up. The data at the moment resembles this
Column1 Column2 Column3 Column4
Bobby Fisher Virginia Rural
Willis Johnson Oklahoma City
[code].....
The following code suppose to:
1. Read line-by-line a txt file with more than 500,000 lines, (each line 521 characters long)
2. extract an ID No from the line
3. query from a database for LCCIStatus
4. concatenate the value of LCCIStatus to the line
5. write the line to sample.txt
My problem is, this code works perfectly with the test file of 8000 lines but fail with the actual files which have over 500,000 lines. FYI, the test file contains data which I cut and paste from the actual file.
[Code]...
I have a windows app in vb.net , i am trying to read a xml file from my server(url...).I am able to read abc.xml . now i have a requirement to show abc.xml in a rich text box in vb.net and then i have to show node and its value in combobox. I am able to do this with a directory(suppose that file is in C:/abc.xml)[code]...
View 1 RepliesI am trying to parse a very large text file for certain strings. The text file is part of a level-making software for an old game I play. The text file basically contains all the information the level designer software needs, but the only important bit is the 'texture information'. Basically what I'm trying to create is a little program that parses the text files and shows the user a list of every texture in that text file. The problem is, the strings denoting textures are not really easy to find, and I can't think of any sensible and fast way to get them...
[Code]...
My app is a Bible Reader. At load up I can choose Genesis Ch1 and its entirety pops into a rtb. I enter a word to search for like 'God' and hit the SEARCH button. The results I get are initially what I want. I get the verse 1:1 In the beginning God created the heaven and the earth. But then the app replaces the script with other words containing God, but all jumbled up. Here is the code I am using: Private Sub ToolStripButton2Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton2Search.Click Dim stSearch As String stSearch = Me.ToolStripButton2Search.Text For Each Line As String In File.ReadAllLines(Path.Combine(Application.StartupPath, "Bible VersionsKJV 1611King James Version of the Holy Bible.txt")) If Line.Contains(Me.ToolStripTextBox1.Text) Then Me.RichTextBoxViewer.Text = (Line) End If Next LineBryn Ryver
View 2 RepliesI have some large csv files (1.5gb each) where I need to replace specific values. The method I'm currently using is terribly slow and I'm fairly certain that there should be a way to speed this up but I'm just not experienced enough to know what I should be doing. This is my first post and I tried searching through to find something relevant but didn't come across anything.
My other thought would be to break the file into chunks so that I can read the entire thing into memory, do all of the replacements there and then output to a consolidated file. I tried this but the way I did it actually ended up seeming slower than my current method.
Sub Main()
Dim fName As String = "2009.csv"
Dim wrtFile As String = "2009.1.csv"
[Code]....
When you need to do random access to the lines of a text file, the regular solution is to put those lines in a list and access them in that list.But doing this if the text file is large creates a large memory overhead and may cause some memory stress on the application.This class maps the file and provide the ability to read any particular line in the file at a random position, without the need to read or put in memory any other line but the desired line. The only memory overhead involve is the 1024 bytes buffer of the base stream.Even if the file mapping can be a process that consume a noticable amount of time if the file is very large ( ~ 5 seconds for each 100,000,000 caracteres) , once the mapping is done the access to a particular line becomes instantaneous regardless of the size of the file. (The file mapping can always be done at a convenient time (ex when the process load) and can be done on a worker thread The class is base on a StreamReader to support the differents Text Encodings Example uf usage ( As I say, if the file is very large, dont do it like that, but declare the class at a convenient time)
Imports Reader = System.IO.MyStreams
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
