C# Discussion Boards - CodeProject

Re: How to update progressBar from another class

MichCl17-Jan-13 9:44

17-Jan-13 9:44

C_Comm.cs is a separate VS project, separate dll, commonly referenced by everything (CR5.cs, PC.cs). Do you think I still need everything except the delegate part in my iCR? The CR5 implements iCR and that's the only way I can see getting the ProgressChanged defined in CR5 from PC.cs, but when I take out the delegate part, I get "The type or namespace name 'ProgressChangeHandler' could not be found (are you missing a using directive or an assembly reference?)". I can't keep my iCR.cs and C_Comm.cs in the same dll because of the whole layout. The VS project layout is:

Project 1 has iCR.cs

Project 2 has PC.cs and a couple of other things. (update - this has form with progress bar)

Project 3 has CR5 (implements iCR) and a couple of other things.

Project 4 has CR_Factory which will return a CR5 through the iCR interface to my PC.cs

Project 5 has C_Comm.cs. It is referenced in PC.cs, CR5, and iCR.

In the future I'll have a CR6 project like the CR5.

As far as cb.ProgressChanged != null, I'm just trying to get what you suggested originally to work with my delegate in my C_Comm. Yes, checking for null before I send the update.

modified 17-Jan-13 16:18pm.

Re: How to update progressBar from another class

Jibesh17-Jan-13 10:24

Jibesh

17-Jan-13 10:24

I dont see any problems here. did you refer Project5 in iCRS

Jibesh V P

Re: How to update progressBar from another class

MichCl18-Jan-13 2:07

MichCl

18-Jan-13 2:07

I can't reference CR5 in iCR because that would be an incorrect implementation for factory design pattern. Plus, CR5 is an iCR and if iCR referenced CR5, it would be circular.

Re: How to update progressBar from another class

MichCl18-Jan-13 7:16

MichCl

18-Jan-13 7:16

I wound up leaving the original delegate in my iCR and everything you originally recommended above. Then I created a separate delegate and handler in my C_Comm.cs class. I couldn't see any other way to update my progressBar and also share the same delegate and event. Thanks for the help!

Re: How to update progressBar from another class

Jibesh18-Jan-13 13:55

Jibesh

18-Jan-13 13:55

I dont see any error in your declaration, i.e the delegate method is declared in Comm.cs file which is referred in all the other 3(or more project) iCR,CR5 and form Class. so the delegate should be available in all other classes and you need to include the proper namespaces in other project files.

Jibesh V P

Re: How to update progressBar from another class

MichCl21-Jan-13 4:53

MichCl

21-Jan-13 4:53

Thank you so much for the help. We have a very small work group here, and they are not programmers and don't understand this stuff (not to mention me having a tough time with events and this architecture). It turned out I wasn't "using" C_Comm in my interface. Once I did that and fixed a couple of declarations to use the C_Comm version of the Handler, all worked. Smile | :)

Re: How to update progressBar from another class

Jibesh21-Jan-13 5:00

Jibesh

21-Jan-13 5:00

Glad to hear this. Good Luck
Jibesh

Jibesh V P

Re: How to update progressBar from another class

MichCl21-Jan-13 5:01

MichCl

21-Jan-13 5:01

Thank you! And thanks for sticking with this thread.

Re: How to update progressBar from another class

Jibesh21-Jan-13 5:02

Jibesh

21-Jan-13 5:02

You are welcome!! Cheers!

Jibesh V P

Re: How to update progressBar from another class

MichCl6-May-13 3:44

MichCl

6-May-13 3:44

@jibesh - I added an interface (see my recent question), and my event is null when I try to update my progress bar. I know you have a good idea about events and interfaces. If you could take a look at my newly posted question(Thursday post maybe), I'd appreciate it. Thanks!

Including a PDF file in SHFB generated .chm (Html Helpfile 1)

User 971917715-Jan-13 1:07

User 9719177

15-Jan-13 1:07

I need to include a pdf file in my sandcastle documentation. The user should be able to navigate to the pdf on clicking it in the .chm file. Is it possible to do this? I've been searching all forums with no proper answer. I have tried using href tag in the xml comment and providing the url of the pdf file. But it opens the browser instead of the pdf file. Has anyone done this before?

-nite_hawk

-- modified 18-Oct-22 21:01pm.

Re: Including a PDF file in SHFB generated .chm (Html Helpfile 1)

Pete O'Hanlon15-Jan-13 3:28

Pete O'Hanlon

15-Jan-13 3:28

Try the sandcastle help forums. I suspect, if it's possible, the answer will be there.

*pre-emptive celebratory nipple tassle jiggle* - Sean Ewington

"Mind bleach! Send me mind bleach!" - Nagy Vilmos

CodeStash - Online Snippet Management | My blog | MoXAML PowerToys | Mole 2010 - debugging made easier

DirectX9

electriac15-Jan-13 0:20

electriac

15-Jan-13 0:20

In C# code how can I detect if Directx9 is installed on the user machine?

Re: DirectX9

markovl15-Jan-13 0:53

markovl

15-Jan-13 0:53

You can check the value of the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectX\Version registry key. This table[^] will show you the version according to the version number. For example 4.09.00.0904 is DirectX 9.0c.

Re: DirectX9

electriac15-Jan-13 4:59

electriac

15-Jan-13 4:59

I was able to do this on XP but I can't get any code to work on Win X64 could you give me an example.

TNX

Re: DirectX9

Dave Kreskowiak15-Jan-13 6:48

Dave Kreskowiak

15-Jan-13 6:48

You have to look at the same path under the SOFTWARE\Wow6432Node\...

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: DirectX9

electriac15-Jan-13 12:17

electriac

15-Jan-13 12:17

This seems to be working. Any suggestions? I guess I will have to identify the OS and have an alternative for XP - right? Many thanks!

public void readRegistryForDX9()
        {
            RegistryKey rk = Registry.LocalMachine;
            RegistryKey sk = rk.OpenSubKey("SOFTWARE\\Wow6432Node\\Microsoft\\DirectX");
            string temp = (string)sk.GetValue("Version");
            if (temp.IndexOf("4.09")<0) MessageBox.Show("Directx 9 Must be installed");
            else MessageBox.Show("Directx 9 already installed");
            return;
        }

Re: DirectX9

Dave Kreskowiak15-Jan-13 19:39

Dave Kreskowiak

15-Jan-13 19:39

You don't need to "read the OS". You just look under one registry path and if the value isn't there, you look under the other one. If it's not under either, DirectX isn't installed.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: DirectX9

markovl16-Jan-13 1:48

markovl

16-Jan-13 1:48

What Dave said above should do it.

One note though - be sure to free any resources used by the RegistryKey objects - encolsing them in using statements is good:

using (RegistryKey sk = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Wow6432Node\\Microsoft\\DirectX"))
{
    // the rest of your code;
}

It's also good practice to check sk for null as if the key's not present on the system sk.GetValue("Version") will thrown an exception.

P.S. No need to explicitly return from a void method.

Re: DirectX9

electriac16-Jan-13 4:42

electriac

16-Jan-13 4:42

Markovl - TNX:

Datagridview DataSource Change Auotmatically without need

Nabawoka14-Jan-13 16:35

Nabawoka

14-Jan-13 16:35

i set the dataSource to datagridview

DatTbl = CustomerManger.SelectCustomersAllDT(); //dattbl is datatable
            ds.Tables.Add(DatTbl);  //ds is dataset
            DatTbl.TableName = "Customers";
            dgvCustomers.DataSource = null;
            dgvCustomers.DataSource = ds;
            dgvCustomers.DataMember = "Customers";

then is selectionChange event i Select another data in list and before set it to listbox datasource .. datasource of datagrid change Mad | :mad:

and all columns and data of customer cleared and replaced by Notices ???????

private void dgvCustomers_SelectionChanged(object sender, EventArgs e)
{
NoticList NL=NoticeManager.SelectNoticesbyCustCD(newCust.CustId);  
}

if i comment this line datasource of datagrid view doesn't change

Re: Datagridview DataSource Change Auotmatically without need

PIEBALDconsult14-Jan-13 17:19

PIEBALDconsult

14-Jan-13 17:19

I don't know. You probably need to show more code.

And you don't need the DataSet, you can use the DataTable (or preferably its DefaultView) as the DataSource.

How to get the select value in a multiple dropdownlist

vanilsonwdd14-Jan-13 13:20

vanilsonwdd

14-Jan-13 13:20

hi, I'm trying to get multiple values that was selected in a dropdown list, the problem is that it's only returning one value, if I select two or more values only give me one, here's the code:

List<String> dep = new List<String>();
        foreach (ListItem item in sltnamedep.Items)
        {

            if (item.Selected)
            {


                
                dep.Add(item.Text);


            }

        }
        for (int i = 0; i < dep.Count; i++)
            Response.Write(dep[i]);

Re: How to get the select value in a multiple dropdownlist

Jibesh14-Jan-13 14:33

Jibesh

14-Jan-13 14:33

is the MultiSelection is enabled for the listView? can you print/check the number of selected items using sltnamedep.Items.Count property

Jibesh V P

Re: How to get the select value in a multiple dropdownlist

micke.andersson28-Jan-13 3:54

micke.andersson

28-Jan-13 3:54

Make sure you have focus on the control.

MSDN says:

Quote:
Items appear selected only when the ListView control has focus. To select items in response to a user action such as a button click, be sure to call the Focus method in addition to setting this property.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.