Re: byte[] to String conversion problem - C# Discussion Boards

Robert Rohde9-Apr-06 22:08

9-Apr-06 22:08

You could look into the registry under the key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.
Basically everything listed under control panel/Software is listed there (including name, manufacturer, version...).
You can access the registry via the Registry class in the Microsoft.Win32 namespace.

Re: Querying installed software

User 58261910-Apr-06 2:35

User 582619

10-Apr-06 2:35

Thank you for the hint.

Regards,
Ingo

How to open the oledbObject of word document in PowerPoint application using C#

sam_g19-Apr-06 21:03

sam_g1

9-Apr-06 21:03

Hi I am opening a Powerpoint application on winform.
i am using a button onclick on that button a slide is inserted and i want to insert a oledbobject "word document" in that slide i am writing the code for that but its not taking the exact class name and giving the COMException(0x80004005) ..
the code is here

using Word = Microsoft.Office.Interop.Word;
using ppt = Microsoft.Office.Interop.PowerPoint;

// here winPptControl_main1 is the usercontrol in which
//Powerpoint application is openend...

ppt.Presentation objPres = winPptControl_main1.presentation;
ppt.Application ppApp = objPres.Application;

ppt.Slides objSlides;
ppt.Slide objSlide;
objSlides = objPres.Slides;

objSlide = objSlides.Add(1, ppt.PpSlideLayout.ppLayoutTitleOnly);

Word.Document wd = (Word.Document)objSlide.Shapes.AddOLEObject(150, 150, 480, 320,
"Opusapp", "",
MsoTriState.msoFalse, "", 0, "",
MsoTriState.msoFalse).OLEFormat.Object;

i am not finding the exact class name to open the word document i have tried MSWord.document to instead of Opusapp but its giving the same error ..
if anybody knows the solution pls let em know ..
thanks...

how to edit xml file

rah_sin9-Apr-06 21:02

rah_sin

9-Apr-06 21:02

how can we edit xml file runtime using dataset?

rahul

Re: how to edit xml file

papa19809-Apr-06 22:35

papa1980

9-Apr-06 22:35

use xmlwriter

Catching new reminder and incoming mail

Yevgeny Efter9-Apr-06 21:02

Yevgeny Efter

9-Apr-06 21:02

Hello!

I am trying to catch a reminder and incoming mail of the outlook...

I am able to catch them, but the problem is that I can't see the content

of the mail, or the content of the reminder...

Maybe someone knows how I can check it?

(I'm programming in .NET 1.1)

Any help would be appreciated!!!

Thanks in advance!

byte[] to String conversion problem

wasife9-Apr-06 20:59

wasife

9-Apr-06 20:59

Hi,
I am getting a byte array from a string using Encoding.UTF8.getBytes(string) function. Now i convert it to a string using Encoding.UTF8.getString(byte[]). Now when i convert it back to byte array using above mentioned function,i don't get the same array that i used when converting to string. Please guide me in this regard.
Waiting from replay...

Re: byte[] to String conversion problem

Guffa9-Apr-06 21:13

Guffa

9-Apr-06 21:13

If that is really so, it sounds like something that is very specific to what you are doing. I'm not even convinced that the unicode conversion is the actual problem.

Can you show an example that will produce this unusual behaviour?

---
b { font-weight: normal; }

How to customize pdf viewer

anurajju9-Apr-06 20:34

anurajju

9-Apr-06 20:34

hi im using axAcroPDF to display the Pdf file on my windows form. im able to display the pdf file in my form but i dont want the tool bars of PDF file to be displayed. i just want the pages of PDF file. how can i customize this?

Rajanikanth A.B

Can events be hooked to MS Word?

kbalias9-Apr-06 20:24

kbalias

9-Apr-06 20:24

I am opening a MS Word document using the following C# code.

Word.ApplicationClass WordApp = new Word.ApplicationClass();<br />
<br />
// Use the open file dialog to choose a word document  <br />
if (this.openFileDialog1.ShowDialog() == DialogResult.OK)  <br />
{<br />
object fileName = openFileDialog1.FileName; <br />
	object readOnly = false;       <br />
	object isVisible = true;<br />
			<br />
//Here is the way to handle parameters you don't care about in .NET      <br />
	object missing = System.Reflection.Missing.Value;<br />
			<br />
	//Make word visible, so you can see what's happening        <br />
	WordApp.Visible = true;<br />
			<br />
	//Open the document that was chosen by the dialog      <br />
	Word.Document aDoc = WordApp.Documents.Open(ref fileName, ref missing,ref readOnly, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref missing, ref isVisible);<br />
			<br />
	//Activate the document so it shows up in front        <br />
	aDoc.Activate();<br />
}

This works fine and it opens the document in MS Word separate from the C# application. Is there a way of hooking an event to the document object (aDoc) so that when the word document is closed the C# application can react to the event?

Thanks
Kobus

Common Task Control

mehrdadc489-Apr-06 20:20

mehrdadc48

9-Apr-06 20:20

Hi.

You should see the common task in windows XP, that appears in left side of all windows(like My Computer , My Documents , ...), and when in a window (My Computer, for example) at "Tools menu -> Folder options ... -> General Tab -> Show common tasks in folders" is selected, it appears.

OK?

I need a control like this to use, that has several portions and each portion expand and enclose like common tasks.

Anything can help me?

Best wishes

Re: Common Task Control

leppie10-Apr-06 1:38

leppie

10-Apr-06 1:38

There are several samples here on CP. I cant recall what they are called, perhaps 'Collapsable Control/Container'.

xacc.ide-0.1.3.2

Re: Common Task Control

Graham Nimbley10-Apr-06 8:53

Graham Nimbley

10-Apr-06 8:53

Perhaps this might be what you want:
http://www.codeproject.com/cs/miscctrl/XPTaskBar.asp[^]

Graham.

data is not updating in Database

Sunny H9-Apr-06 19:16

Sunny H

9-Apr-06 19:16

i am using command object where i execute an insert statement,it executes fine but when i open the table then there is no data present. iam using client mode sql database in visual studio 2005.

please help me Frown | :(

sunny

Re: data is not updating in Database

Guffa9-Apr-06 20:52

Guffa

9-Apr-06 20:52

Then it's either not executing fine, or you are not looking for the data in the right place. A normal input statement either adds a record or causes an exception when it's executed.

So, most likely you are mistaken in some way, and one of these three things happen:

:: The query is not executed at all.

:: There is an exception, but your code is catching and ignoring it.

:: The data is there, but you look in the wrong place.

---
b { font-weight: normal; }

What is the fastest and Efficient way?

pubududilena9-Apr-06 17:43

pubududilena

9-Apr-06 17:43

hi all,

What is the most Efficient way when using Data Reader and DataSet.?

I have read some articles and they says that Data Reader is Efficient than DataSet.

Now I m giving two samples using DataReader and DataSet.

sample 1 using DataReader)

SqlDataReader dataReader=sqlCmdGetFareList.ExecuteReader();
while(dataReader.Read())
{
FareList farelist = new FareList();
farelist.FareID= dataReader.GetInt32(0).ToString();
farelist.AirlineName = dataReader.GetString(1);
farelistArray.Add(farelist);
}

I'm going to do same procedure using DataSet.

sample 2 using DataSet)

DataSet lobjDataSet=new DataSet("Temp");
DataTable lobjDataTable=new DataTable("DTTable");
SqlDataAdapter lobjSqlAdpt=new SqlDataAdapter(_sqlComm);
//fill DataSet
lobjSqlAdpt.Fill(lobjDataSet);
//fill dataTable
if(lobjDataSet.Tables.Count>0)
lobjDataTable=lobjDataSet.Tables[0];

foreach(DataRow dr in lobjDataTable.Rows)
{
FareList farelist = new FareList();
farelist.FareID= dr["FareID"].ToString().Trim();
farelist.AirlineName = dr["AirLineName"].ToString().Trim();
farelistArray.Add(farelist);
}

In theory says that dataReader is fastest than DataSet.but in here you can see that there is loop in both Sample 1 and Sample 2.
So when considering entire code in sample1 and sample2, can any one please tell me what is the fastest and efficient way to data Retrieve from DB?

Thanks in advance...

Re: What is the fastest and Efficient way?

Guffa9-Apr-06 19:05

Guffa

9-Apr-06 19:05

The first one, of course.

The data adapter is basically just reading the data and creating an object structure in memory containing the data. As you are not using any of the added functionality of the data set, this is only wasting time and memory resources.

---
b { font-weight: normal; }

Re: What is the fastest and Efficient way?

Robert Rohde9-Apr-06 22:01

Robert Rohde

9-Apr-06 22:01

Guffa is totally right. The fact that you see one loop in both examples doesn't mean anything. You can be sure that the Fill call to the DataAdapter contains another loop. Furthermore you should always consider that one loop may be more/less cost intensive than another one. If you are not sure some logging of the times while running is always helpful. Testing/profiling is always the most secure way to determine which alternative is the best.

HOW TO Call the Save Method of an MDI Child Form from the MDI Form Toolbar Menu

Old Gun9-Apr-06 17:03

Old Gun

9-Apr-06 17:03

please help.

Re: HOW TO Call the Save Method of an MDI Child Form from the MDI Form Toolbar Menu

CWIZO9-Apr-06 21:01

CWIZO

9-Apr-06 21:01

Make a public Save method on your MDI child form and then obtain a refrence to the active child form from parent and call the Save method.

--------------------------------------------------------
My development blog
Q:What does the derived class in C# tell to it's parent?
A:All your base are belong to us!

DataGrid's Style (C# Windows Form)

yagang9-Apr-06 16:42

yagang

9-Apr-06 16:42

Hello,How to set a DataGrid's style(DataGridColumnStyle) when It's DataSource is a DataView?
I can do it when DataGrid's DataSource is a DataSet or DataTable.
Can you Help me?
Thanks a lot.

DataGridColumnStyle

-- modified at 22:47 Sunday 9th April, 2006

Re: DataGrid's Style (C# Windows Form)

yagang10-Apr-06 16:21

yagang

10-Apr-06 16:21

I Have know the answer,Thanks everyone.

hello

Method Overloading Troubles

Skoder9-Apr-06 16:35

Skoder

9-Apr-06 16:35

Hey,

i want to do some overloading but i cannot find out how to get the object type to be right.

The problem is the following.

I have a Base class called Animals, and then i have a couple of sub classes which inherit from the Animal class (etc. Dog, Cat and soo on).

I Create my Dog and Cat objects and add them to an ArrayList.
For controlling the ArrayList i have a couple of Methods, one of them is GetAnimal();, which will return a object from the ArrayList. But as it is different what type of objects which is returned it seems that i have to return object of type Animal (the object casted).

I have a class which computes some movement and stuff.
In that class i want to Get an object (GetAnimal()) and call a method, like this.

public void Compute() {
Move(GetAnimal());
}

and then i have Move Methods for every Animal

public void Move(Dog dog) { doSomething }
public void Move(Cat cat) { doSomething }

But my problem is that when i make the GetAnimal() call i get the object as Animal and not as the Correct type needed for overloading. Soo it complains about there is no correct method for overloading.

What am i missing / doing wrong ?
What should i do to get the object as the correct type which i can use when calling the overload methods

I could of course place the methods on the objects and make it abstract instead, but it isnt reall what i want.

Hope someone can help me with this.

Best regards

Martin Confused | :confused:

Re: Method Overloading Troubles

S. Senthil Kumar9-Apr-06 18:15

S. Senthil Kumar

9-Apr-06 18:15

Time to understand the difference between overloading and overriding. Method overload resolution happens at compile time, so the compiler sees that you call Move with an instance of Animal and that there is no method that takes it as a parameter. Virtual method dispatch, which you can achieve by declaring Move virtual or abstract, happens at run time, based on the runtime type of the object returned by GetAnimal. Because the compiler cannot possibly figure the actual type of the object returned by GetAnimal, it can only assume what you've declared i.e it returns Animal.

So no, you cannot do what you want using overloading, unless you return explicit types (GetCat(), GetDog(), for eg.).

Regards
Senthil
_____________________________
My Blog | My Articles | My Flickr | WinMacro

Re: Method Overloading Troubles

Skoder11-Apr-06 16:15

Skoder

11-Apr-06 16:15

Thanks for the answer.

I decided to go with the abstract solution as i could probably come in handy later on.

I guess it would have worked if i used the ArrayList with the objects directly and just did something like
Move(theArrayList[index]); -- hmm i am sure i once found an articel on this site about this ... hmm

Best regards

Martin ... Smile | :)

-- modified at 22:16 Tuesday 11th April, 2006

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