apply foreach in a byte[] ArrayList - C# Discussion Boards

TJoe10-Oct-07 6:27

10-Oct-07 6:27

Typically, you would just store each item as a separate resource string and load it like so:

this.comboBox1.Items.AddRange(new object[] {
    resources.GetString("comboBox1.Items"),
    resources.GetString("comboBox1.Items1"),
    resources.GetString("comboBox1.Items2")});

You could save them as a single string with a known separator (for example the '|' char). After getting the string you could use String.Split to get the individual entries. Finally, you would loop over the string array returned from #1 and add them to the Combo box. This all assumes that '|' will never appear in the individual entries.

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Student1110-Oct-07 12:09

Student11

10-Oct-07 12:09

Thanks Tom for your help.
As I am very new to C#.NET and localization I am a little unsure of what to do next.

Would the above code go in the Form (code page) that has the combo box with the label code, etc?

I also haven't used "'|' char" either so I wouldn't know where to begin here.

Your help is greatly appreciated.

Thanks,

TJoe11-Oct-07 2:32

11-Oct-07 2:32

I'd recommend reading this[^]. Basically, you can use the VS designer to set the strings for you. The code I pasted earlier was generated by VS. You simply add the items to the ComboBox and VS puts them in the resource file for the current language (as described in the link).

For the "|" char, I was saying you could put all the items in a single resource string. If you go this route then you can't use the VS Form designer. The idea is you would create a string resource with a value of "One|Two|Three". Then you could split the string and add them to the ComboBox like so (this code is off the top of my head so it may not be 100% correct):

String[] parts = resources.GetString("comboBox1.Items").Split(new Char[] {'|'});
foreach (String part in parts)
    this.comboBox.Items.Add(part);

Then to localize you just have to update that one resource (e.g. "Uno|Dos|Tres").

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Student1111-Oct-07 19:15

Student11

11-Oct-07 19:15

Thanks again Tom for your help Smile | :)

I used the VS designer to add the strings to the combox box using "collection" under the combo box properties. This is the code it created under the form's designer.

// comboBox1
//
this.comboBox1.FormattingEnabled = true;
this.comboBox1.Items.AddRange(new object[] {
"Intense",
"Santa Cruz"});
this.comboBox1.Location = new System.Drawing.Point(12, 25);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(174, 21);
this.comboBox1.TabIndex = 1;
//

I am now trying to work out the code for the load resource file, which is added to the form's code... this is what I am confused with... Confused | :confused:

Again your help is greatly appreciated... Smile | :)

TJoe12-Oct-07 1:55

12-Oct-07 1:55

Did you set the parent Form's Localizable property to true? If so, then it should use resources.

Also, I'm assuming you are working with Visual Studio 2005. Is this correct?

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Student1112-Oct-07 2:18

Student11

12-Oct-07 2:18

Hi Tom

Yes that is correct I am using VS 2005.

We need to adapt the program to load strings for the appropriate culture, but without using the form’s “Localizable” property, which will handle things automatically. I think it is done by using a Resource Manager?

I am having a few problems with my application. Is there a way of pasting screen shots in here so I can explain?

Thanks again for your help Smile | :)

TJoe12-Oct-07 2:25

apply foreach in a byte[] ArrayList

12-Oct-07 2:25

I'd recommend creating a new Visual Studio project that you can play with. Then set the Localizable property to true in the test project, add a combo box, and add some strings to it. Then you can see how VS is adding the resources and using them.

VS does use a ResourceManager to manage the resources. You can add a "Resource" from the "Add Item to Project" menu option. Make sure you don't already have a resource in your project though.

Another option would be to add a new (temporary) Form to your existing project, set it's Localizable property to true, add a combo box, and add some strings to it. This will create the resource for you and give you a sample of how it works. Then delete the Form when you are done. This will leave the resource file, so you can use it in your existing forms.

To load strings in the combo box for your existing Form, you would do the same thing that the test Form did (in it's Form#.Designer.cs file). Except, you would put your code to add the items to the ComboBox in the constructor of your existing Form (after the InitializeComponents call).

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

Patricio Tapia9-Oct-07 21:24

Patricio Tapia

9-Oct-07 21:24

Hi.
an example:

byte[] fileconte = new byte[6];<br />
(code and code....)<br />
ArrayList list = new ArrayList();<br />
list.Add(fileconte);

How i can use a foreach to get list objets into a byte[]?? like:

foreach (byte[] cont in list) {<br />
}

Re: apply foreach in a byte[] ArrayList

JoeSharp9-Oct-07 21:56

JoeSharp

9-Oct-07 21:56

hi
byte[] byteArray = (byte[])list.ToArray(typeof(byte));

regards

Do you mean...

CPallini9-Oct-07 22:02

CPallini

9-Oct-07 22:02

this?

byte[] fileconte = new byte[6];
//...
ArrayList list = new ArrayList();
list.Add(fileconte);
//How i can use a foreach to get list objets into a byte[]?? like:
foreach (object cont in list) {
  byte[] myByteArray = cont as byte[];
  myByteArray[0] = 5;
}

Cheers

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: Do you mean...

Martin#9-Oct-07 22:05

Re: Of course I know that you know, but

9-Oct-07 22:05

Hello,

CPallini wrote:
byte[] myByteArray = cont as byte[];

As the 'as' could also return 'null',

CPallini wrote:
myByteArray[0] = 5;

this could leed to an null ref exception!

All the best,

Martin

Of course I know, but

CPallini9-Oct-07 22:23

CPallini

9-Oct-07 22:23

Of course I know, but I leave all the checking code as an exercise for the reader.
Big Grin | :-D

BTW that's enforce flexibility as you may choose to:

(1) Really write the checking code.
(2) Use a precondition/postcondition approach on your project.
(3) Simply thrust preceeding code (viable only for very small projects).

Cheers
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Martin#9-Oct-07 22:28

9-Oct-07 22:28

, it's deep inside me to allways do an '!=null' check after 'as'.
Big Grin | :-D

All the best,

Martin

Because

CPallini9-Oct-07 22:34

CPallini

9-Oct-07 22:34

Because you got married to strategy no.1 Big Grin | :-D

It's a safe marriage: ALL THE BEST!
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: True

Martin#9-Oct-07 22:41

9-Oct-07 22:41

All the best,

Martin

Re: True

Patricio Tapia9-Oct-07 23:01

Patricio Tapia

9-Oct-07 23:01

CHeck my last reply

Works Perfect

now... time to rest Sleepy | :zzz:

Re: True

Martin#9-Oct-07 23:06

Re: apply foreach in a byte[] ArrayList

9-Oct-07 23:06

I'm happy for you!

sleep well!

All the best,

Martin

Martin#9-Oct-07 22:02

Re: apply foreach in a byte[] ArrayList

9-Oct-07 22:02

Hello,

This will work if you only Add "byte[]"'s to your List.

byte[] actArray1 = new byte[5];
byte[] actArray2 = new byte[6];
ArrayList actList = new ArrayList();
 
actList.Add(actArray1);
actList.Add(actArray2);
 
foreach(byte[] actArray in actList)
{
	int length = actArray.Length;
}

But will throw an exception (System.InvalidCastException') if you also add different types to the List:

byte[] actArray1 = new byte[5];
byte[] actArray2 = new byte[6];
Control actControl = new Control();
ArrayList actList = new ArrayList();
 
actList.Add(actArray1);
actList.Add(actArray2);
actList.Add(actControl);
 
foreach(byte[] actArray in actList)  //will throw the exception here
{
	int length = actArray.Length;
}

There for you could use:

byte[] actArray1 = new byte[5];
byte[] actArray2 = new byte[6];
Control actControl = new Control();
ArrayList actList = new ArrayList();
 
actList.Add(actArray1);
actList.Add(actArray2);
actList.Add(actControl);
 
foreach(object actObject in actList)
{
	byte[] actArray = actObject as byte[];
	if(actArray!=null)
	{
		int length = actArray.Length;
	}
}

IF you are using framework > .Net1.1, you could use a generic list.

All the best,

Martin

Patricio Tapia9-Oct-07 22:34

Patricio Tapia

9-Oct-07 22:34

Thanks
Now i'm remember that byte in ArrayList

This is my code:

    class Program<br />
    {<br />
        static void Main(string[] args)<br />
        {<br />
            Program a = new Program();<br />
<br />
            byte[] actArray1 = new byte[5];<br />
            byte[] actArray2 = new byte[5];<br />
            byte[] cant = new byte[5];<br />
            ArrayList actList = new ArrayList();<br />
<br />
            actArray1[0] = 0x6f;<br />
            actArray1[1] = 0x6f;<br />
            actArray1[2] = 0x5f;<br />
            actArray1[3] = 0x6f;<br />
            actArray1[4] = 0x1f;<br />
<br />
            actArray2[0] = 0x6a;<br />
            actArray2[1] = 0x6f;<br />
            actArray2[2] = 0x6f;<br />
            actArray2[3] = 0x6a;<br />
            actArray2[4] = 0x4f;<br />
<br />
            cant[0] = 0x6a;<br />
            cant[1] = 0x6f;<br />
            cant[2] = 0x6f;<br />
            cant[3] = 0x6a;<br />
            cant[4] = 0x4f;<br />
<br />
            actList.Add(actArray1);<br />
            actList.Add(actArray2);<br />
<br />
            foreach (byte[] actArray in actList)<br />
            {<br />
                if (a.AreEqual(actArray,cant))<br />
                Console.WriteLine("same byte array");<br />
            }<br />
<br />
            Console.ReadLine();<br />
        }<br />
        private bool AreEqual(byte[] a, byte[] b)<br />
        {<br />
            if (a.Length != b.Length)<br />
                return false;<br />
            for (int i = 0; i < a.Length; i++)<br />
                if (a[i] != b[i])<br />
                    return false;<br />
            return true;<br />
        }<br />
    }

Protection for excel sheet

iet20009-Oct-07 21:17

iet2000

9-Oct-07 21:17

Hi all,
We are automating an excel sheet using c#.

We provided security to the excel sheet by using protect() method.

The problem is,
the excel sheet can be modified by other unauthenticated users of the system inspite of the protection we provided programatically.

We need to modify the excel sheet only programatically but not manually by opening the excel sheet and modify data in the cells.

We also tried setting the protection level attributes in the excel sheet tools
manually...But we are not satisfied as the protection level attributes can also be changed by others.

Please help us.

Regards,

IET

class problem

ptvce9-Oct-07 21:13

ptvce

9-Oct-07 21:13

explain me secend FDemo , explain that what is it? it has the same name with class:

class FDemo {
int x;
FDemo (int i) {
x = i;

}

Martin#9-Oct-07 21:23

9-Oct-07 21:23

Hello,

It's a parameterised constructor;
The constructor name has to be equal with the class name!

A class can have more than one constructor:

class FDemo
{
    int x;
 
    //default constructor
    FDemo()
    {
    }

    //parameterized constructor, which takes an int
    FDemo(int i)
    {
        x = i;
    }

}

If you now want to instanciate the class you could use:
FDemo fdemo = new FDemo();
or:
int actValue = 5;
FDemo fdemo = new FDemo(actValue);

All the best,

Martin

ptvce9-Oct-07 21:40

ptvce

9-Oct-07 21:40

thanks. but why we use constructor?

Martin#9-Oct-07 21:48

9-Oct-07 21:48

ptvce wrote:
but why we use constructor?

Like I said, to instanciate a class;

Or, do you mean, why we use parameterized constructors?

All the best,

Martin