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Error in Loading assembly from Assembly.Load

SRKSHOME17-Sep-09 3:31

17-Sep-09 3:31

Hi,
I am getting an exception in the following code. Exception is "Could not load file or assembly 'AutomationAddIn, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c1461fa3837aae41' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418)"

AssemblyName _asmName = new AssemblyName();
_asmName.CodeBase = "file://" + "D://dinesh//CSharp//AutomationAddIn//AutomationAddIn//bin//Debug//AutomationAddIn.dll";

 Assembly.Load(_asmName);

Any suggestions?
Thanks.

Re: Error in Loading assembly from Assembly.Load

Not Active17-Sep-09 4:19

Not Active

17-Sep-09 4:19

"file://" is not necessary

only two letters away from being an asset

Re: Error in Loading assembly from Assembly.Load

Luc Pattyn17-Sep-09 4:20

Luc Pattyn

17-Sep-09 4:20

what's with all those double slashes? it is backslash that needs escaping, not slash.

Smile | :)

Luc Pattyn

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Calling GUI & path finding gurus

izakfick17-Sep-09 3:27

izakfick

17-Sep-09 3:27

Hello

Is there anyone out there that knows how to develop the connection points that indicate relational mappings between two objects.. example: C# dataset designer can indicate foreign key relationships, or MSSQL diagrams also have the same connecting points that are adjustable. Adjustable by means of it not always being a straight line at all times..

So i'm building a busines object modeller and require the ability to show relational connection points on my business objects on a designer canvas. This leads my to believe that a implentation of maybe IDesignerHost is valid, but i would not know where to start with those connecter objects..
The connecting points must indicate what type of relationship it it and also must be adjustable when moved by using the mouse..

any ideas where to start.. please help.
Regards

Re: Calling GUI & path finding gurus

Pete O'Hanlon17-Sep-09 4:11

Pete O'Hanlon

17-Sep-09 4:11

You could always start by downloading Netron[^], and having a look to see how this was solved there.

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Allow space in text box - add the code for allowing spaces in regular expression validator

coolsharath17-Sep-09 3:21

coolsharath

17-Sep-09 3:21

Hi All,

In my text box i need to allow alphanumerics and some special characters. Below is the code i used in Regular expression valiadator -it works perfectly fine.
"^[0-9a-zA-Z,@&_.-]+$"

I need to allow spaces in textbox. so can anyone please help me how to add it. I tried to add a space in the above existing validation but throws an error. Help required in this. Thanks in advance.

Thanks,
Santa.

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

Calla17-Sep-09 3:40

Calla

17-Sep-09 3:40

Did you try with \s for the white space?
How does your code look like?

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

coolsharath17-Sep-09 3:51

coolsharath

17-Sep-09 3:51

How to add the \s in the above expression. I added in many ways and saw it was not working.

Thanks,
Santa

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

coolsharath17-Sep-09 4:06

coolsharath

17-Sep-09 4:06

can anyone plese help me in this issue.
i am struck here ..
requirement --- need to allow spaces text box so to need to add code for it in the regular expression validator.

Thanks,
Santa

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

Calla17-Sep-09 4:20

Calla

17-Sep-09 4:20

This code:

Regex rx = new Regex(@"\s");
string test = "1234 abc";
			
if (rx.IsMatch(test))
   Console.WriteLine("White space");
else
   Console.WriteLine("No white space");

gives the output: White space for me.

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

coolsharath17-Sep-09 4:26

coolsharath

17-Sep-09 4:26

can you please tell me how to add this \s in this expression
"^[0-9a-zA-Z,@&_.-]+$".
Thanks in advance.

Thanks ,
Santa

Re: Allow space in text box - add the code for allowing spaces in regular expression validator

OriginalGriff17-Sep-09 4:36

OriginalGriff

17-Sep-09 4:36

I think you need to learn a little bit about regular expressions, as it is simple to add the \s to your expression. Try looking at Expresso[^] which is a tool for creating, testing and examining regular expressions.

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how one can programatically send keystroke, mouse move, mouse click

Tridip Bhattacharjee17-Sep-09 2:18

Tridip Bhattacharjee

17-Sep-09 2:18

suppose i have one form with one button and i want when i will click the button then mouse will go to a folder and double click on it to open. so please someone tell me how can i do this programatically.

i need this type of idea for developing screen sharing apps. i can develop apps with remoting that which run in client machine and capture client screen and send the scree to my apps and then my apps paint its screen with that image. it is easy but suppose client desktop has one folder called test and when i will click on the picture of that test folder from my end then what i need to send as a result apps in client end can programatically open that folder.

please i need good idea to move in right direction to develop a screen share apps. please give me the idea that how to open folder of client machine after clicking on the image of client desktop transferred by apps sitting in client machine.

i will be highly obliged if anyone can help me to develop this apps with idea and also can tell me if is there any site available from where i can download the sample code.

Thanks in advance

tbhattacharjee

how to see datagrid print printpriview in c# windows.

Ramesh Reddy1111117-Sep-09 2:17

Ramesh Reddy11111

17-Sep-09 2:17

i written following code under printDocument1_PrintPage event

Font f = new Font("Arial", 14, FontStyle.Regular);
Brush b = Brushes.Black;
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
for (int j = 0; j < dataGridView1.Columns.Count; j++)
{
e.Graphics.DrawString(this.dataGridView1(i, j) + " ", f, b, j * 5, i * 5);
}
}

i am getting error this.dataGridView1(i, j)
error message isError 1 Non-invocable member FormsApplication2.Form1.dataGridView1' cannot be used like a method.
please help me .

Re: how to see datagrid print printpriview in c# windows.

Henry Minute17-Sep-09 2:48

Henry Minute

17-Sep-09 2:48

The part of your code that is giving the error is

e.Graphics.DrawString(<big>this.dataGridView1(i, j)</big> + " ", f, b, j * 5, i * 5);

You are using this.dataGridView1(i, j) as if there were a DataGridView method that takes a row index and a column index and returns the value stored there. There is no such method.

You need to use square brackets '[]'.
Like this:

e.Graphics.DrawString(<big>this.dataGridView1[i, j]</big> + " ", f, b, j * 5, i * 5);

but as you have it you will get incorrect results, as it is dgrid[colindex, rowindex] and you are using dgrid[rowindex, colindex]

You can use something like

e.Graphics.DrawString(this.dataGridView1.Rows[i].Cells[j].Value.ToString() + " ", f, b, j * 5, i * 5);

so that you do not get confused about cols and rows.

Note also the .Value.ToString() in the last bit of code, you may, or may not need to use it in your code.

Henry Minute

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Windows Service Credentials

Sangioo17-Sep-09 2:09

Sangioo

17-Sep-09 2:09

Hi,

I developped a windows service and I'd like to retrieve its own credentials (the "Run As" credentials, not the WindowsIdentity). Is it possible?

If yes, can those credentials be converted to NetworkCredentials? (for webservices calls)

thanks

Context menu for a text box.

Pavan Navali17-Sep-09 1:45

Pavan Navali

17-Sep-09 1:45

Hi,

I have a scenario where I'm validating the data in a text box for special character.

The user can enter the data through keyboard, Copy & paste data using Ctrl+C and Ctrl+V from keyboard, or right click and paste using mouse.

I have to validate the data before it is pasted to the textbox. I'm validating the data for first two scenarios, i.e., validating while user enteres the data, or pasting the data using Ctrl+C and Ctrl+V from keyboard.

I'm not able to find any events which triggers contextmenu_paste_click event.

I'm not allowed to create a context menu for the textbox, that is I have to use the default context menu and I cannot create a new class which inherits the textBox class.

How can I implement this?

Any suggestion is appreciated.

Thank you.

Re: Context menu for a text box.

Not Active17-Sep-09 1:49

Not Active

17-Sep-09 1:49

Handle the textchange event, it will be triggered by the paste

only two letters away from being an asset

Re: Context menu for a text box.

Pavan Navali17-Sep-09 18:26

Pavan Navali

17-Sep-09 18:26

Thank you Mark Nischalke for your suggestion.

It works as far as validation is concerned, but doesn't serve my requirement completely, because for the following reason:

suppose the user pastes some text and it he tries to add some thing to same text, then the onTextchanged event is triggered and copies the same text again to the text box. and for other events like cut this event is triggered.

So, I would like to is there any way to access the paste_click event in the default context menu.

Re: Context menu for a text box.

Not Active18-Sep-09 1:43

Not Active

18-Sep-09 1:43

Pavan Navali wrote:
onTextchanged event is triggered and copies the same text again to the text box

Why would it do this?

only two letters away from being an asset

disabled hyperlink and write arrow cursor

Idoshhh17-Sep-09 1:17

Idoshhh

17-Sep-09 1:17

Hello,
i have a problem using IE7.

i have 4 text button (hyperLink) that should working after the user logged in with user and password.
the problem is that: if the hyperlink is disabled the mouse arrow is pointer and not write arrow as it should be in IE7, but in IE8 it's ok.
what can i do using css to fix it ???

10x for all.
Ido.

Re: disabled hyperlink and write arrow cursor

Not Active17-Sep-09 1:53

Not Active

17-Sep-09 1:53

Idosha wrote:
what can i do using css to fix it ???

First, choose the correct forum. This question would be better posed in the ASP.NET or Web Development forums, it has nothing to do with C#.

Change the CSS on those elements to an appropriate cursor setting.

only two letters away from being an asset

measure received data/s for an udp multicast address [modified]

collapo17-Sep-09 1:08

collapo

17-Sep-09 1:08

Hi
I'm trying to measure data from a multicast udp address.

To do this, i use a socket added to multicastgroup and this code:

while (!b)
{
    byte[] buffer = new byte[udpReceiver.Available];
    udpReceiver.Receive(buffer, 0, buffer.Length, SocketFlags.None, out err);
    if ((DateTime.Now - starttime).TotalSeconds < ((double)elem.timetowatch_ms / 1000))
    {
        newvalue += (ulong)buffer.Length;
    }
    else
    {
        newvalue += (ulong)buffer.Length;
        receivedByteNumber = ((Convert.ToUInt64((double)newvalue / (DateTime.Now - starttime).TotalSeconds)) / 128);
        newvalue = 0;
        starttime = DateTime.Now;
        b = true;
    }
 }

my problem that it is using about 50% of cpu time and if i place it in a thread
it shows less data (~4000kbits/sec) than if it is placed on a main thread (~7000) - possibly because of system time management, but i'm unsure.

Any better suggestion on data measuring on multicast udp with less cpu and regardless of this threadproblem?

Thanks in advance:
Collapo

modified on Thursday, September 17, 2009 7:14 AM

Re: measure received data/s for an udp multicast address

Luc Pattyn17-Sep-09 2:32

Luc Pattyn

17-Sep-09 2:32

I see you have a dual-core system. Laugh | :laugh:

The code you created is basically a polling loop: you are repeating the same thing over and over, without waiting for anything, so the core that executes it will spin around as fast as it can: assume Available is zero, Receive sees zero-length buffer, returns immediately, timespan is very small, loop iteration done, on to the next loop wasting even more cycles.

You need to fix this in one of several ways:
- include a Thread.Sleep(x) in your code, where x>0; say x=33; that way your code will run at most 30 times per second, and your CPU usage will go way down. However you now may miss some packets.
- use a fixed-length buffer, say 2048B; that way Receive will have to wait for data; drawback is it will not report smaller packets until the buffer gets full, so there is a lag.
- use asynchronous I/O, look for BeginReceive. IMO that would be the correct way.

Smile | :)

Luc Pattyn

Have a look at my entry for the lean-and-mean competition; please provide comments, feedback, discussion, and don’t forget to vote for it! Thank you.

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Re: measure received data/s for an udp multicast address

collapo17-Sep-09 3:16

collapo

17-Sep-09 3:16

Thanks Luc!

Yeapp, it seem reasonable...

- Thread.Sleep(x) is loosing too much packets, so it won't be good for me i guess

- fixed buffer might be good, I'll try it in a short time

- I'll try BeginReceive as well, though i am not familiar with callbacks, so i would be really thankful if you could enlighten me on that

collapo

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