C# Discussion Boards - CodeProject

Re: code to generate text from the given string and how to detect "\" in the text as a text and not as a tag during parsing of rtf file

BillWoodruff9-Feb-14 19:03

BillWoodruff

9-Feb-14 19:03

The simplest solution is to just use a RichTextBox: add your RTF string to it; and, read back its 'Text Property:

YourRichTextBox.Rtf = YourRTFString;

string YourPlainText = YourRichTextBox.Text;

Or, you could use this:

// in Form scope 
private char[] cleanRTF = new char[] {'\\', ' ', '{', '}', '\r', '\n'};

// in a Method
string[] sAry = str.Split(cleanRTF, StringSplitOptions.RemoveEmptyEntries);

But, then, you've got to do something with the resulting string[], like combining it back into a continuous string, in which case you will still have lots of the RTF formatting codes.

For more sophisticated "cleaning" you should consider using a RegEx; but even that is not easy, as you can read about here: [^].

“But I don't want to go among mad people,” Alice remarked.

“Oh, you can't help that,” said the Cat: “we're all mad here. I'm mad. You're mad.”

“How do you know I'm mad?” said Alice.

“You must be," said the Cat, or you wouldn't have come here.” Lewis Carroll

Re: code to generate text from the given string and how to detect "\" in the text as a text and not as a tag during parsing of rtf file

Richard Deeming10-Feb-14 1:41

Richard Deeming

10-Feb-14 1:41

Have a look at this article: NRTFTree - A class library for RTF processing in C#[^]

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Disable combo box on selecting an option.

Mohan Subramani9-Feb-14 3:40

Mohan Subramani

9-Feb-14 3:40

Am back again with another issue in my tool.

i need to grade out a text box, on selecting an option in a combo box drop down.

A part of my tool looks like this:

Label1 (Status) Combobox1 (In-progress, On-Hold,
Label2 (Result) Combobox2 (Pass, Fail)

i need the Combobox2 need to be Disabled only when i select "In-Progress or On-Hold" in the combo box1

i tried with implementing checkbox instead of combobox (if checkbox1.checked = true) etc. it works.
But i donot want to implement the same using combox box.

please assist.

Re: Disable combo box on selecting an option.

OriginalGriff9-Feb-14 3:47

OriginalGriff

9-Feb-14 3:47

And what is the problem?
You clearly know how to disable a Textbox, and you presumably know that the ComboBox has SelectionChanged events - so what part of this do you need help with?

Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)

Re: Disable combo box on selecting an option.

BillWoodruff9-Feb-14 6:18

BillWoodruff

9-Feb-14 6:18

Try this:

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    comboBox2.Enabled = ! (comboBox1.SelectedItem == "In-progress" || comboBox1.SelectedItem == "On-Hold");
}

Here the assumption is made that there are other selectable Items in comboBox1 which, if selected, should enable the use of comboBox2.

video and gps

jas168-Feb-14 23:21

jas16

8-Feb-14 23:21

..how to grab coordinates from video screen and automatically save the longitude and latitude then it,,this coordinates will be used for mapping..pls. help me.

Re: video and gps

Ravi Bhavnani9-Feb-14 4:34

Ravi Bhavnani

9-Feb-14 4:34

Your question is too vague. What screen are we talking about here?

/ravi

My new year resolution: 2048 x 1536
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Getting Data From User

RebornProgrammer8-Feb-14 21:00

RebornProgrammer

8-Feb-14 21:00

Hi all, I'm pretty new to C# and would like to have some questions answered regarding getting data from the user. Suppose I have a class called MyClass like the following:

Class MyClass
{
string firstName;
string lastName;

MyClass(string fName, string lName)
{
this.firstName=fName;
this.lastName=lname;
}

public string fN{ get { return firstName; }set { firstName= value; } }
public string lN { get { return _firstName; } set { lastName= value; }}

}

Then in the code behind of my aspx page I want to create an array of type MyClass and get firstName and lastName from the user and put them in the array.

I plan to have the user enter firstName and lastName into textboxes and insert them into the array by sending them in as parameters during the instantiation of the array. The following is what I have done but it does not work.

 MyClass[] projects = new MyClass[4];
//Get firstName and lastName from textbox
            projects[0] = new Project(firstName, lastName);

Any help is greatly appreciated, thanks in advance

modified 9-Feb-14 3:08am.

Re: Getting Data From User

OriginalGriff8-Feb-14 23:21

OriginalGriff

8-Feb-14 23:21

No, it won't work.
Or rather, it will - but not for long.

The problem is that you aren't thinking website - you are thinking desktop.

Websites do not work in the same way: the application is not running all the time, waiting for the user to do something. Instead, the website application is started again each time the user does something like request a page, press a button, and so forth. Which means that unlike a desktop application any data you assemble in your application ceases to exist as soon as the last bytes of data have going back to the client. If you don't store it somewhere permanent (or semi-permanent) explicitly, it is discarded, to make way for the next website / user combination.

If you want to keep a list of users, then you need to explicitly save the data, in a database, or in the Session, or in Cookies, depending on how permanent you need it to be.

Write to notepad or other windows

alirezamansoori8-Feb-14 19:27

alirezamansoori

8-Feb-14 19:27

hi Want to write a example of textbox other windows with SendMessage API
thank

Re: Write to notepad or other windows

OriginalGriff8-Feb-14 19:58

OriginalGriff

8-Feb-14 19:58

Don't post in multiple places: it duplicates work and that's annoying.
You posted this in QA, so leave it there.

How to Fetch UserName & Current Date automatically.

Mohan Subramani8-Feb-14 7:01

Mohan Subramani

8-Feb-14 7:01

Hello Guys,

Am struck with a scenario here,
Am going to distribute my Front End tool developed using C# to 30 users computer.
They will be entering the values in it and that will be get stored in the SQL database in the Server location.

I want the computer name of users to be captured in the Sql database automatically with the user entering that value.

e.g:
User 1 will be entering the below details from Machine 1.
My Sql database will be getting the values entered by user 1 and additionally in one more column i want the "User 1" also to be captured.
(Can we use "LoggedOnUser" something like that retrive the userName to be entered on Clicking the submit button) ??

Same for Date also, Can we use "SysData" to be getting captured in Database

Please assist.

Re: How to Fetch UserName & Current Date automatically.

OriginalGriff8-Feb-14 7:32

OriginalGriff

8-Feb-14 7:32

The user is easy:

string username = (string) WindowsIdentity.GetCurrent().Name

Getting the date is even easier:

DateTime now = DateTime.Now;

Re: How to Fetch UserName & Current Date automatically.

Dave Kreskowiak8-Feb-14 9:22

Dave Kreskowiak

8-Feb-14 9:22

and Environment.MachineName in your client code will get you the computer name.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: How to Fetch UserName & Current Date automatically.

Mycroft Holmes8-Feb-14 13:35

Mycroft Holmes

8-Feb-14 13:35

You now have the methods and keywords to use.

So your app needs to pass in the user name when it sends the data to the database. Every table in my databases has a Modified and ModifiedBy field and that information comes from the client application.

Never underestimate the power of human stupidity
RAH

Re: How to Fetch UserName & Current Date automatically.

Richard Deeming10-Feb-14 1:37

Richard Deeming

10-Feb-14 1:37

As an alternative to the above answers, if you want to do this from SQL, you can use the HOST_NAME[^] and SUSER_NAME[^] functions to get the computer name and username.

For the current date and time, you can use the SYSUTCDATETIME[^] function. (This will return a UTC value, which is the only sensible way to store times in a database.)

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

how can i get min value in datatable with distinct items using loops

yahiaalaa8-Feb-14 5:49

yahiaalaa

8-Feb-14 5:49

hello guys i need ur help if i have data table
item value check
a 11
a 10
b 9
b 30
c 10
---------------------------------------
i need get the min value of item ech item as like that
item value check
a 11
a 10 x
b 9 x
b 30
c 10 x

Re: how can i get min value in datatable with distinct items using loops

TnTinMn8-Feb-14 6:54

TnTinMn

8-Feb-14 6:54

This looks like homework. Show what you have tried and explain your problems.

To get you started here is one possible way to get the minimum values.

Loop through the rows and store the minimum value for each unique "item" value. You can use a Dictionary<string, int=""> to store these unique items and the value. If the Dictionary contains the "item", test the value and store the minimum value; if it does not contain the "item", add it.

This is not the complete solution, so do not come back and say its does not work.

Re: how can i get min value in datatable with distinct items using loops

Mycroft Holmes8-Feb-14 13:31

Mycroft Holmes

8-Feb-14 13:31

Do some research into GROUP BY and the MIN operator

Select Item, min(value) from table
Group By Item

Never underestimate the power of human stupidity
RAH

Re: how can i get min value in datatable with distinct items using loops

Md Nazmoon Noor13-May-14 3:21

Md Nazmoon Noor

13-May-14 3:21

sounds like a homework.

SSH Connection to Cisco Router

sikas_Cisco8-Feb-14 4:36

sikas_Cisco

8-Feb-14 4:36

Hello All,

I'm looking for a way to connect to a Cisco Router via SSH and then interpret the output to perform different operations based on the output, i.e. username/password incorrect, enable mode, etc ...

I have already been able to achieve this using TELNET, but now I need to migrate to SSH.

Best Regards,
Sikas.