Re: Removing selected text from a string - C# Discussion Boards

9-Jul-05 8:19

I'm trying to compare words entered in a textbox with a selection of stop-words, removing any stopwords that are found. Here's a snippet.

string text = this.textBox1.Text;
if(RemoveMe(s))
{
int startIndex = text.IndexOf(s);
int endIndex = s.Length-1;
text = text.Remove(startIndex, startIndex+endIndex);
}

Problem is, every now and then startIndex get a value of -1...
Kinda stumped here, what am I doing wrong?

Snowblind379-Jul-05 8:29

9-Jul-05 8:29

When the iterator reaches the end it sets itself at -1. You need to re-set it at 0 after each string that you are finished with

User 66589-Jul-05 8:34

User 6658

9-Jul-05 8:34

int startIndex = text.IndexOf(s);<br />
			int endIndex = s.Length-1;<br />
			text = text.Remove(startIndex, s.Length);

works fine for me.
Remember the second parameter to "Remove" number of chars to delete, not the endIndex

Can you give us some example strings you are trying to find in "text"?

modified 12-Sep-18 21:01pm.

Member 20300389-Jul-05 8:48

9-Jul-05 8:48

hehe...thanks, would have had to be something that simple...
I'm removing common words such as 'at' 'the' 'this' 'is' 'of' etc...

Guffa9-Jul-05 8:38

Guffa

9-Jul-05 8:38

The IndexOf method returns -1 when the string is not found. You have to check if the word is even present in the string before you try to remove it.

Also, your method is only removing the first occurance of the word. Why don't you use a Replace instead? Or why not use a regular expression? Then you can match the word boundaries, so that you don't accidentally remove a part of a word that matches another word.

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b { font-weight: normal; }

Member 20300389-Jul-05 8:52

9-Jul-05 8:52

I'd use regex but they always leaves me scratching my head somewhat puzzled Smile | :)

Thanks for the suggestions, off to try it in the code now

User 66589-Jul-05 9:09

User 6658

9-Jul-05 9:09

They're simple, really Smile | :)

Just take yourself a week and learn it, it's worth a lot when dealing with strings.

modified 12-Sep-18 21:01pm.

Member 20300389-Jul-05 9:25

creating installer, startup???

9-Jul-05 9:25

yeah, I've kinda put it off long enough Smile | :)

thanks

marazm19-Jul-05 6:58

marazm1

9-Jul-05 6:58

Hi there. I'm creating an installer file for the program that I have completed. I want the installer to install the program into the correct folder, etc.

Question:

Does anybody know how to use the tools in Visual Studio to make my "installer.exe" file add a shortcut to the StartUp folder of windows, so that the installed program would run every time a user logs into windows?

Any other alternatives?

thanks.

Re: creating installer, startup???

marazm19-Jul-05 7:48

marazm1

9-Jul-05 7:48

Oh I got it, nevermind.

Re: creating installer, startup???

amitmohanty9-Jul-05 15:16

amitmohanty

9-Jul-05 15:16

hi Marazm,
I have having the same problem. I have deveoped a code and wanna create the installer for that. Would you please let me know how to do it?

Regards,
Amit

HERE IS THE ANSWER

marazm19-Jul-05 16:20

marazm1

9-Jul-05 16:20

Here are the steps:
1) create new project, of type "Setup and Deployment Projects", then on the right select "setup project".

2) right click on the name of the project in the solution explorer and "add" your .exe file and your icon files.

...then...

3)you will see
file System on Target Machine
Application Folder //how your files are installed
User's Desktop //files added to user's desktop
User's Programs Menu //files added to user's start-menu

4)Go to the Application Folder. Right click into the empty space, and add your .exe file. Set up using right-clicks, such as setting the icon. Also set up the default installation path by right clicking on the folder.

5)Right-click on the .exe file and choose "create shortcut". Place that in "User's Desktop" if you want a shortcut to the file to appear. Choose the icon as well for the shortcut.

6)Inside "User's Program Menu", create a folder, call it "Startup". Inside of it create a shortcut, as was described above in 4. This will put your program's shortcut into STARTUP by default

...finally...

build your project and you're all set.

Re: HERE IS THE ANSWER

amitmohanty9-Jul-05 18:17

amitmohanty

9-Jul-05 18:17

thanks

In first time I draw, in the second, no.

Alex Cutovoi9-Jul-05 6:21

Alex Cutovoi

9-Jul-05 6:21

I have a question. I created a NavyBatlle with sockets that the client or server sends the coordinates to hit the opponent, drawing and "X" ou a "O".
My problem is:
In the first time the data is send for the server, the figure is drawn, on the second, appears the following runtime error: "Invalid parameter used". Wasn't the error appears since the beginning?
Thanks a lot for who helps me.
Below the problematic server's piece:
Ah, I've implemented the IDsposable interface in my Draw class:

private void DrawX(int iX, int iY, Graphics G)
{
using(G)
{
Pen pColor = new Pen(Color.Blue);
pColor.Width = 5;
Point pA = new Point(iX, iY);
Point pB = new Point(iX+30, iY+30);
Point pA1 = new Point(iX+30, iY);
Point pB1 = new Point(iX, iY+30);
G.DrawLine(pColor,pA,pB);
//Nessa parte é que dá problema
G.DrawLine(pColor,pA1,pB1);
}
}

The part that I created the class and call the method to get the coordinates:
do
{
sData = Reader.ReadString();
using(Draw Desenho = new Draw())
{
Desenho.GetCoordinates(sData, G);
}
}while(DataStream != null && sData != "Close connection");

On client I just call the Write method of my BinayWriter to(of course) send data on the stream.

One more time thanks a lot.
Laugh | :laugh:

Re: In first time I draw, in the second, no.

Snowblind379-Jul-05 10:23

Re: In first time I draw, in the second, no.

9-Jul-05 10:23

I wonder if you need to refresh your connection after sending the first value stream. Or possibly re-set the object you are sending out. I have had problems before trying to re-send the same object that eventually gets corrupted. Hmmm, sorry no concrete answers but I suppose some possibilties to look at.

Alex Cutovoi10-Jul-05 5:21

Alex Cutovoi

10-Jul-05 5:21

No, my connections are in threads. Talking about my object, I'm using the "using" keyword. I commented this part to see if was it that cause my problem but no.
Man, I'don't know what I do. Am I answered your doubt?
Thanks for help one more time

Need help using an abstract WebMethod

Snowblind379-Jul-05 5:32

Re: Need help using an abstract WebMethod

9-Jul-05 5:32

Before I pull out my hair out, throw the computer out the window, step on the neighbours cat, drive my car over the cliff or all of the above......I thought maybe I could ask for some help.

The concept is simple....or so it would seem.

I want to call a WebMethod with my credentials and get the information about my account back. Hmmm, should be a piece of cake. The problem is that the class created by wsdl.exe is an abstract class with abstract methods. So I created a class that implements those methods using override.

Here is the basic setup:

The abstract class created by wsdl

<br />
[System.Web.Services.WebServiceBindingAttribute(Name="AccountsSoap", Namespace="http://address")]<br />
<br />
    public abstract class ServiceAccounts : System.Web.Services.WebService <br />
{<br />
        <br />
        [System.Web.Services.WebMethodAttribute()]<br />
        [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://address/QueryProfile", RequestNamespace="http://address", ResponseNamespace="http://address", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]<br />
<br />
        public abstract AccountProfile QueryProfile(Credentials credentials);<br />
<br />
}<br />

The class to implement

<br />
[WebService(Name="ServiceAccounts",Description="Provides a callback mechanism",Namespace="http://address/accounts")]<br />
<br />
	public class AccountsImpl : Project.App.Tls.Accounts.ServiceAccounts<br />
	{<br />
<br />
[WebMethod(MessageName="QueryProfile",Description="Gets the profile of the specified client.",EnableSession=false)]<br />
<br />
public override AccountProfile QueryProfile(Credentials credentials)<br />
		{<br />
//What do I put in here?<br />
}<br />

And finally the call

<br />
private void sendButton_Click(object sender, System.EventArgs e)<br />
		{<br />
			CredentialCache myCache = new CredentialCache();<br />
<br />
			NetworkCredential netCred = new NetworkCredential("name1", "pwd1", "domain");<br />
			((CredentialCache) myCache).Add(destUri, "NTLM", netCred);<br />
			((CredentialCache) myCache).Add(destUri, "negotiate", netCred);<br />
			((CredentialCache) myCache).Add(destUri, "digest", netCred);<br />
<br />
			accounts.credentials.Account = "name2";<br />
			accounts.credentials.Password = "pwd2";<br />
<br />
			accountProfile = accounts.QueryProfile(accounts.credentials);<br />
		}<br />

Now, I'm sure you are all wondering what my problem is....My problem is that I don't know what to put in my implementation of QueryProfile() to make it call the webMethod. All of the implementations I have seen say to create a new object of ServiceAccounts and then just call the respective method. This code I would put in my QueryProfile() implementation. But since both the ServiceAccounts and the ServiceAccounts.QueryProfile() are both abstract, I cannot create a reference to them.

I know the answer is going to be simple but I cannot figure this out!!!!!!!!

Any input would be appreciative as I kinda like my hair, my computer, the neighbour's cat and especially my car.

Thanks

SnowBlind37 who is CodeBlind37 at this moment

Member 20300389-Jul-05 9:05

Re: Need help using an abstract WebMethod

9-Jul-05 9:05

Hmmm...off the top of my head
try openning the ServiceAccounts class and removing the WebService base class as well as the attributes and the public and abstract modifiers from the methods the get an interface and using it that way?

Snowblind379-Jul-05 9:44