Re: Dear all - C# Discussion Boards

.NetRocker3-Nov-05 10:18

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);

Re: dot.net 2

S. Senthil Kumar3-Nov-05 4:38

S. Senthil Kumar

3-Nov-05 4:38

Fair advice, but the compiler does convert the concatenation using + to string.Concat calls, so it really doesn't create any extra string objects.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: dot.net 2

J4amieC3-Nov-05 5:57

J4amieC

3-Nov-05 5:57

True, and im of the "let the compiler optimize your code" camp for sure.

However the advice given is true from so many other levels - readability, good practice, simply understanding the framework you're working in.

Letting the compiler optimize code is fine, but if the code starts off sloppy then dont expect the optimized code to be much better!

Re: dot.net 2

S. Senthil Kumar3-Nov-05 18:42

S. Senthil Kumar

3-Nov-05 18:42

Agreed.

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: dot.net 2

leppie3-Nov-05 3:43

leppie

3-Nov-05 3:43

IIRC you can only emit that in the Page_load handler Unsure | :~

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Programmatically lock a control in design time

monteiz3-Nov-05 1:30

monteiz

3-Nov-05 1:30

Hello there,
anyone can lock a control in design time using the Locked property in the properties window, setting it to true.

But is there a way to do that programmatically?

Re: Programmatically lock a control in design time

J4amieC3-Nov-05 1:56

J4amieC

3-Nov-05 1:56

the Locked property simply stops the control being moved/resized at design time - it has no effect at runtime so quite why you would want to set this using code im not sure.

If you want to stop a control being used at runtime, you are after the Enabled property

Reading chunked SOAP XML Response

SimonPust3-Nov-05 0:28

SimonPust

3-Nov-05 0:28

Hello,

I need to use a Java Webservice which uses HTML/1.1 with transfer encoding: chunked. I already found postings that say that .NET is able to read chunked SOAP responses, but I haven´t found an arcticle about reading chunked SOAP messages.

Can anybody give me a hint how to process chunked SOAP XML response with C#, or has a link to an article about that?

How to use the delphi compiled dll in .net

varmag3-Nov-05 0:22

varmag

3-Nov-05 0:22

Hai All,

Can I access the delphi compiled dll in .net.
I tried to use it by adding the reference but I am getting the error that it is not a valid com component or valid assembly.
I am getting information about the functions written in the dll in the dependency walker.
Can I accesst the dll functions through DllImport attribute.

Please help me

varmag

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