file monitoring low level - C# Discussion Boards

Re: Struct

Guffa3-Nov-05 22:10

Guffa

3-Nov-05 22:10

Oh, you are absolutely right. Sorry about that.

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Re: Struct

budidharma4-Nov-05 13:04

budidharma

4-Nov-05 13:04

... Yes, you can definately declare a struct inside a class.

Re: Struct

Guffa6-Nov-05 21:00

Guffa

6-Nov-05 21:00

Yes, S. Senthil Kumar already pointed that out.

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Image to ICO

jgallen233-Nov-05 7:52

jgallen23

3-Nov-05 7:52

I am trying to convert a picturebox into an ICO. I found out that it is a known bug that the ImageFormat.Icon does not encode the image correctly. Using this article: http://www.codeproject.com/dotnet/MultiIcon.asp I know how to encode the icon, the only problem is, that I need to get the image's raw bytes to write to the image. Does anybody have any idea how to do this or a better way to convert an image or png to an ico?

JGA

Re: Image to ICO

enjoycrack3-Nov-05 13:08

enjoycrack

3-Nov-05 13:08

Hi there,

jgallen23 wrote:
I found out that it is a known bug that the ImageFormat.Icon does not encode the image correctly

You might take a look on this article to get the solution
Icon

jgallen23 wrote:
png to an ico

also take a look on this
Png2Icon

<< >>

Re: Image to ICO

jgallen233-Nov-05 13:11

jgallen23

3-Nov-05 13:11

enjoycrack wrote:
You might take a look on this article to get the solution
Icon

here's are the problems with that article:
The source Bitmap must use PixelFormat.Format24BppRgb
The source Bitmap must use at most 256 colors
The source Bitmap must be 16x16 pixels
The target Icon must be 16x16 pixels
The pixel in the lower left corner (0, 15) is used to determine the transparency color

JGA

HTML Format

zaboboa3-Nov-05 6:58

zaboboa

3-Nov-05 6:58

Hi
I am trying to design the Help feature, consisting of the tree view in one pain, and the explanation in the other, separated by a spliter. How can I create an HTML file, and how can I bind it to the explanation section? Do I use, textbox, etc...? Any help would be very valuable.

Thank you.

file monitoring low level

UgoDeschamps3-Nov-05 6:44

UgoDeschamps

3-Nov-05 6:44

Hi all,
Im looking for a way (.net or not) to monitor file access and permit access to certain application to it...

I want to be able to get an event saying (this file) tries to do "this" to this file

Acess - Deny

Thanks

Re: file monitoring low level

.NetRocker3-Nov-05 10:18

.NetRocker

3-Nov-05 10:18

Please be more specific. Your problem is not really clear to understand. Or try to give an example of what you are looking for. That will help.

Re: file monitoring low level

UgoDeschamps3-Nov-05 10:36

UgoDeschamps

3-Nov-05 10:36

Something like Zone alarm
process XXX is trying to modify file (*.txt)
Allow / Deny

Be able to get every application that try to access a file
and
have the possibility to allow it to access it or not.

Re: file monitoring low level

Jon Rista4-Nov-05 17:02

Jon Rista

4-Nov-05 17:02

To do something like that, you have to hook into some pretty low-level system API's. Usually, such hooks require a windows driver to be written (most firewalls use kernel-level drivers with high priority to accomplish the task of allow/deny). If you try to do this at a higher level than kernel, people will easily be able to get by your app by writing their own kernel-level driver. I'd give you some examples, but its been years since I did anything like this, and I never got too deep into the theory anyway. So its a little beyond my league.

encrypt c# .config files

timothymfox3-Nov-05 6:15

timothymfox

3-Nov-05 6:15

Hi all,

I have several config files in my application. In my app.config file, I currently have some entries that look like this:

<configurationsections>
<configurationsection name="options" encrypt="false">
<storageprovider xsi:type="XmlFileStorageProviderData" name="XML File Storage Provider" path="options.config">
<datatransformer xsi:type="XmlSerializerTransformerData" name="Xml Serializer Transformer">
<includetypes>

<configurationsection name="state" encrypt="false">
<storageprovider xsi:type="XmlFileStorageProviderData" name="XML File Storage Provider" path="state.config">
<datatransformer xsi:type="XmlSerializerTransformerData" name="Xml Serializer Transformer">
<includetypes>

<configurationsection name="main" encrypt="false">
<storageprovider xsi:type="XmlFileStorageProviderData" name="XML File Storage Provider" path="main.config">
<datatransformer xsi:type="XmlSerializerTransformerData" name="Xml Serializer Transformer">
<includetypes>

I would like to encrypt the main.config file in this example. I noticed that there is an encrypt="false" there. If I would like to encrypt it, how would I do that? I don't see anywhere where I can specify a password. Also, I would somehow have to get my existing decrypted main.config file in the new encrypted format. How would I do that?

Thanks a lot for your help!

Re: encrypt c# .config files

timothymfox3-Nov-05 7:03

timothymfox

3-Nov-05 7:03

Oops, looks like my xml tags got encoded as html tags and aren't visible. Well, essentially what I put there was the config file configuration section.

Again, thanks for your help!

Re: encrypt c# .config files

.NetRocker3-Nov-05 10:15

.NetRocker

3-Nov-05 10:15

You can use Microsoft Enterprise Library Configuration block to encrypt the config file. For details you can go to MSDN and search for Enterprise library configuration block or just google it. There will be tons of examples.

Thanks

Dear all

charbelasmar3-Nov-05 4:55

charbelasmar

3-Nov-05 4:55

I'm having problem with dataGrid bcs i want to implement on it DateTimePicker as first Column (Primery key) so plz if u can help me with a sample code

Best Regards
charbel

Re: Dear all

J4amieC3-Nov-05 6:00

J4amieC

3-Nov-05 6:00

There are plenty of samples out there of hosting a DateTimePicker within a dataGridColumn. A quick google search pulled up many possibilities - im also 99% sure there will be one or more articles right here on CodeProject

Heres the google search
DateTime DataGridColumn[^]

Also, are you sure a DateTime is a good candidate for a PrimaryKey?

Image from custom control?

lameDuck3-Nov-05 4:39

lameDuck

3-Nov-05 4:39

I am writing a guitar music display app, the sort with the chords above the words, you've all seen them! I'm making it do other stuff aswell as that, but prolly the main reason I'm doing it, is to get my head around programming C# and .NET. I learn better by doing.

I've knocked up a custom crontrol that can correctly display a chord, but I'm worried that a large song would have to have dozens of the controls throughout it and that seems wasteful to me. I was wondering if I could have one such control hidden on the form, use it to render the image of the chord, then copy that image onto the form page itself, above the words. Does that make sense? If this is not poss, can I do a control array, like I used to in VB6?

Also, any advise/tip you'd like to give me on scrolling? I'm just going to wwrite text and hopefully chord images directly to the form, so will have to be able to scroll the form and want it to draw quickly.

errr, help?

!!

Thanks in advance.

Jim

Export to Excel

zaboboa3-Nov-05 3:41

zaboboa

3-Nov-05 3:41

Hello,

I have a very large datasource, and the way I am exporting the dataset to Excel, is I go through each row and each column, and populate excel document cell, by cell. It takes a very long time. Is there a better way of exporting the dataset into Excel? Thank you.

Re: Export to Excel

J4amieC3-Nov-05 4:00

J4amieC

3-Nov-05 4:00

Build a Table in HTML, write it to a textfile with a .xls extention and it'll open fine in excel. The slowness you descibe is interoperating with the Excel com object.

try this - copy and paste the below into notepad. Save it as test.xls (remember to choose all files, otherise notepad will name the file test.xls.txt) and now double click in explorer.

row 1 cell 1	row 1 cell 2
row 2 cell 1	row 2 cell 2

Re: Export to Excel

zaboboa3-Nov-05 4:15

zaboboa

3-Nov-05 4:15

Is it possible to do formating of the data in HTML format as well? Here is the code of mine that populates the excel sheet:

<br />
Microsoft.Office.Interop.Excel.ApplicationClass excel = new Microsoft.Office.Interop.Excel.ApplicationClass();<br />
Microsoft.Office.Interop.Excel.Range theRange;<br />
            <br />
excel.Application.Workbooks.Add(true); <br />
excel.Visible = true; <br />
<br />
// ---------------------------------------<br />
// --------- POPULATE HEADER ROW ---------<br />
// ---------------------------------------<br />
int ColumnIndex=0; <br />
foreach(DataColumn col in dataview.Table.Columns) {   <br />
   ColumnIndex++;<br />
   if (ColumnIndex > 3) {<br />
	   excel.Cells[1,ColumnIndex-3] = styleSummary.GridColumnStyles[col.ColumnName].HeaderText;<br />
	   theRange = (Microsoft.Office.Interop.Excel.Range)excel.Cells[1,ColumnIndex-3];<br />
	   if (col.ColumnName == "Description") {<br />
		      theRange.ColumnWidth = 35.71;<br />
	   }<br />
	   theRange.Interior.ColorIndex = 15;<br />
	   theRange.Font.Name = "Arial";<br />
	   theRange.Font.Bold = true;<br />
				   				   <br />
<br />
    } <br />
} // End of FOREACH statement <br />
			<br />
// ---------------------------------------<br />
// --------- POPULATE TABLE ROWS ---------<br />
// ---------------------------------------<br />
int rowIndex=0;<br />
foreach(DataRowView row in dataview) {         <br />
	rowIndex++;       <br />
	ColumnIndex=0; <br />
				<br />
	foreach(DataColumn col in dataview.Table.Columns) {<br />
		ColumnIndex++;    <br />
		if (ColumnIndex > 3) {            <br />
		   if (col.ColumnName == "Description") {<br />
		      excel.Cells[rowIndex+1,ColumnIndex-3] = this.getSpaces(level.Length)+row[col.ColumnName].ToString();      <br />
		   } else {<br />
		      excel.Cells[rowIndex+1,ColumnIndex-3]=row[col.ColumnName].ToString();<br />
		   } <br />
		   theRange = (Microsoft.Office.Interop.Excel.Range)excel.Cells[rowIndex+1,ColumnIndex-3];<br />
		   theRange.Font.Name = "Arial";<br />
		   theRange.Font.Size = 8;<br />
                   theRange.NumberFormat = "$#,##0";<br />
	   }<br />
	   theRange.Interior.ColorIndex = this.getColour(level);<br />
	   theRange.Borders.ColorIndex = 15;<br />
					   <br />
	}       <br />
} // End of INNER FOREACH statement<br />
} // End of OUTTER FOREACH statement <br />
Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)excel.ActiveSheet; <br />
worksheet.Activate();<br />

Is it possible to do the same formating in HTML, or build the text file?
Thank you

Cant do "Process.Start(..."

Anthony Mushrow3-Nov-05 3:16

Anthony Mushrow

3-Nov-05 3:16

I cant use Process. at all, it says that i'm missing something or other, but nothing changed since the last time i used it, i dont think?

Any ideas?

Re: Cant do &quot;Process.Start(...&quot;

leppie3-Nov-05 3:39

leppie

3-Nov-05 3:39

The Undefeated wrote:
it says that i'm missing something or other,

if u add a reference to 'something or other', i'm sure it will work

^{xacc-ide 0.0.99-preview7 now with C#, C, C++, IL, XML, Nemerle, IronPython, Perl, Caml, SML, Ruby, Flex, Yacc, Java, Javascript, Lua, Prolog and Boo highlighting support!}

Re: Cant do &quot;Process.Start(...&quot;

S. Senthil Kumar3-Nov-05 4:32

S. Senthil Kumar

3-Nov-05 4:32

Did you include the System.Diagnostics namespace?

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

dot.net 2

wpcolleen3-Nov-05 1:34

wpcolleen

3-Nov-05 1:34

I've got the following which compiles ok in dot.net 1.0, but when I compile it in dot.net 2 it won't compile.

public static void SetFocus(System.Web.UI.Page pg, string ControlName)
{
System.Text.StringBuilder jScript = new System.Text.StringBuilder();

jScript.Append("");
jScript.Append("document.getElementById('" + ControlName + "').focus();");
jScript.Append("");

pg.RegisterStartupScript("setFocus", jScript.ToString());
}
The error it produces is:-
Can not switch: This end tag does not match up with a start tag.

I've no idea why - has anyone any clues.

Re: dot.net 2

J4amieC3-Nov-05 1:53

J4amieC

3-Nov-05 1:53

Dont know the answer to your question, but for pete's sake if your going to use a StringBuilder then dont concatenate a string in the append call - there is a perfectly good AppendFormat method too!.

ie/ this:

jScript.Append("document.getElementById('" + ControlName + "').focus();");

should be

jScript.AppendFormat("document.getElementById('{0}').focus();",ControlName);

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