C# Discussion Boards - CodeProject

Brady Kelly3-May-07 0:31

Brady Kelly

3-May-07 0:31

You can build the method name dynamically and use Reflection to call the method.

using System.Reflection;
...
string methodName = String.Format("Process{0}DataTable", s);
Type t = this.GetType();
BindingFlags flags = BindingFlags.NonPublic | BindingFlags.InvokeMethod | BindingFlags.Instance;
t.InvokeMember(methodName, flags , null, this, null);
...

Subrahmanyam K3-May-07 0:46

Subrahmanyam K

3-May-07 0:46

Hi,

Thanks a ton for your wonderful suggestion.

Regards,

Subrahmanyam K

soneliso3-May-07 2:36

soneliso

3-May-07 2:36

This is cool i helped me too. Because i have about 10 methods to load on details on Form load
example
ReturnPersonalDetails
ReturnEducationalDetails
ReturnProfileDetails
ReturnWordDetails

Thanks again

C# / Web / VG.net / MyXaml expert currently looking for (telecommute) contract work![^]

J. Dunlap3-May-07 0:58

J. Dunlap

3-May-07 0:58

I don't know what this is for, but it could be that this could be better designed - for example, having separate classes or object instances for operations on each type of table. Then you could say:

agencyDataSource.ProcessTable();
authorityDataSource.ProcessTable();

In either case, you can have a dictionary to store the methods or objects by name:

//the object way
Dictionary<string, MyDataSourceObject> tableObjs = new Dictionary<string, MyDataSourceObject>();
...
tableObjs["Agency"]=agencyDataSource;
tableObjs["Authority"]=authorityDataSource;
...
tableObjs["Agency"].ProcessTable();
tableObjs["Authority"].ProcessTable();

//the method way
delegate void EmptyDelegate();
Dictionary<string, EmptyDelegate> methods = new Dictionary<string, EmptyDelegate>();
...
methods["Agency"]=ProcessAgencyDataTable;
methods["Authority"]=ProcessAuthorityDataTable;
...
methods["Agency"]();
methods["Authority"]();

Or you could do it using Reflection like Brady mentioned but it's slower as far as perf.

--Justin
Microsoft MVP, C#

Subrahmanyam K3-May-07 1:35

Subrahmanyam K

3-May-07 1:35

Thanks Justin,

When looking for the performance, your suggestion would serve better.
I will have to make a trade-off which way best suits for my Application.

Anyway, Thank you once again for your valuable suggestion.

Regards,

Subrahmanyam K

printing a crystal report

AFSEKI7-May-07 5:23

AFSEKI

7-May-07 5:23

Create:

1) Dictionary

rkherath2-May-07 23:29

rkherath

2-May-07 23:29

Hi,

I am trying to print a crytal report using my application programaticaly. I want the user to select the printer and number of copies etc from the print dialog box.

please tell me a way to do this i tried with the following method Where i am giving the Num of pages in the coding and the defualt printer prints the report.

But that is not how i want.

Here is my coding

RepStockSalesCatByLoc repstkslscat = new RepStockSalesCatByLoc();
repstkslscat.SetDataSource(dsreportDiv);
repstkslscat.PrintToPrinter(1, false, 1, 2);

Regards
Ruwandi

rkherath

Re: printing a crystal report

soneliso3-May-07 0:24

soneliso

3-May-07 0:24

Try using ReportViewier to print and use

ReportDocument rptDoc = new ReportDocument();
rptDoc.Load(Server.MapPath("ReportName.rpt"));
rptDoc.SetDataSource(yourDataSet);
CrystalReportViewer1.ReportSource = rptDoc;

the ReportViewer has a print button option, set it to true

CrystalReportViewer1.ShowPrintButton = true;

This usually selects all the printers added on that machine

i hope this helps

Re: printing a crystal report

rkherath3-May-07 0:38

rkherath

3-May-07 0:38

Hi,

Thax, but i have to print 112 reports at once using a foreach. This report is a stock and sales for 112 outlets of a supermarket. user wanna print all the reports at once. but he need to select the printer.
any idea!

regards
Ruwandi

rkherath

Re: printing a crystal report

darkelv3-May-07 1:56

darkelv

3-May-07 1:56

There is a property, PrinterName or some such, that you can set the printer name to.

Get Application directory from console program

Soundman32.22-May-07 23:23

Soundman32.2

2-May-07 23:23

I am writing a C# console program that needs to read a file from the same directory as the application. I can't use the current directory as that is not the same as the application directory.

Normally I would use Application.ExecutablePath, but console apps don't derive from Application.

Ideas?

Soundman32.22-May-07 23:45

Soundman32.2

2-May-07 23:45

The current directory is NOT the application directory.

If I open a command prompt, change to C:\Windows and run the application C:\MyProg.exe your example will not work. The file 1.log is in C:\, but the current directory is C:\Windows so I will get a file not found exception.

wurzel_cidermaker3-May-07 2:02

wurzel_cidermaker

3-May-07 2:02

try this.

static void Main(string[] args)
{

string loc = Assembly.GetCallingAssembly().Location;

string path = Path.GetDirectoryName(loc);

Console.WriteLine(path);

string[] bla = File.ReadAllLines(path + "\\1.log");

foreach (string var in bla)
{
Console.WriteLine(var);
}
}

Brady Kelly3-May-07 0:01

Brady Kelly

3-May-07 0:01

System.Reflection.Assembly execAsm = System.Reflection.Assembly.GetExecutingAssembly();
string asmPath = execAsm.CodeBase.Replace("file:///", "").Replace('/', '\\');
MessageBox.Show(asmPath);

Soundman32.23-May-07 0:51

Soundman32.2

3-May-07 0:51

I'd just got to that point, but I'm using :
System.Reflection.Assembly.GetExecutingAssembly().Location

Thanks.

PIEBALDconsult3-May-07 6:28

PIEBALDconsult

3-May-07 6:28

Application.ExecutablePath works anyway, try it before you discard it.

"We learn more from our mistakes than we do from getting it right the first time."

Stefan Prodan3-May-07 12:55

Stefan Prodan

3-May-07 12:55

That's easy, just use AppDomain.CurrentDomain.BaseDirectory to get the running directory and add to it your console application name and you have a path just like Application.ExecutablePath.

http://stefanprodan.wordpress.com

Changing the text of label

AFSEKI7-May-07 5:25

AFSEKI

7-May-07 5:25

Application.ExecutablePath or Environment.CurrentDirectory for your need Wink | ;)

Hope this helps...

sujithkumarsl2-May-07 23:19

sujithkumarsl

2-May-07 23:19

hi i am trying to chage the text of a label,
but the thing is that its not fast
i am setting the text before some function calls but the text is changed after all the functions.
Do you know any effective method to quickly change the text of a label

My small attempt...

Giorgi Dalakishvili2-May-07 23:28

Giorgi Dalakishvili

2-May-07 23:28

Can you post the code snippet? Also run the application in debug mode to see what happens

sujithkumarsl2-May-07 23:42

sujithkumarsl

2-May-07 23:42

like
label1.Text = " method1";
method1();
label1.Text = "method2";
method2();
label1.Text = "method3";
method3();

this will disply method3 after all function call we will not get the other text
i maen no refreshing

My small attempt...

Giorgi Dalakishvili2-May-07 23:46

Giorgi Dalakishvili

2-May-07 23:46

This because it executes method1() and method2() quickly and you can't see the change. Write something like this

label1.Text = " method1";
System.Threading.Thread.Sleep(5000);
method1();
label1.Text = "method2";
System.Threading.Thread.Sleep(5000);
method2();
label1.Text = "method3";
method3();

and you will see the process

sujithkumarsl2-May-07 23:52

sujithkumarsl

2-May-07 23:52

You can check you sample it will not work,i mean will not give the textchange
i had tried this earlier...
actually the thing is that my methods itself taking more time to execute.
You know anyother methods

My small attempt...