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I think you need to contact UPS directly. I would expect you need a UPS account to be able to calculate rates etc as rates are probably customer dependant.

Bob
Ashfield Consultants Ltd

<pre>--------------------------------------------------------------------------------

I wrote code to access structre from C# .net where structure is in C dll .here are the two files .when i debug the code i got runtime exception i.e MarshalDirectiveException saying that Cannot marshal 'return value': Pointers cannot reference marshaled structures. Use ByRef instead.

------------------------- StrcutreDisplay.dll---------------------------------

#include<iostream.h>

#include<conio.h>

#include<malloc.h>

#include<string.h>

extern "C"

{

typedef struct

{

char *fname;

char *lname;

char abc[5];

}Detail;

__declspec(dllexport) Detail * Disp()

{

Detail *ptr=(Detail *)malloc(sizeof(Detail));

ptr->fname = (char*)malloc(50);

memset(ptr->fname, 0x00, 50);

ptr->lname = (char*)malloc(50);

memset(ptr->lname, 0x00, 50);

memset(ptr->abc, 0x00, 5);

strcpy(ptr->fname, "larson");

strcpy(ptr->lname, "scolari");

strcpy(ptr->abc, "ABC");
return ptr;

}

}

----------------------------StructureExample---------------------------------

using System;

using System.Collections.Generic;

using System.Text;

using System.Runtime.InteropServices;

namespace StructureExample

{

class Program

{

[StructLayout(LayoutKind.Explicit)]

public struct Detail

{ // [MarshalAs(UnmanagedType.LPStr)]

public unsafe sbyte* fname;

public unsafe sbyte* lname;

[MarshalAs (UnmanagedType.ByValArray,SizeConst=5)]
public unsafe fixed char abc[5];

}

// strucure DLL

[DllImport("StructureDisplay.dll")]

public static unsafe extern Detail * Disp();

static void Main(string[] args)

{

unsafe

{

Detail * var = Disp();//Cannot marshal 'return value': Pointers cannot reference marshaled structures. Use ByRef instead.

string a = new string(var->fname);

string b = new string(var->lname);

string e = new string(var->abc);

}

Console.WriteLine("hello world");

Console.WriteLine(a);

Console.WriteLine(b);

Console.WriteLine(e);

Console.Read();

}

}

}

------------------------------------------------------------------------------------------------

Can anyone help me out to solve this problem?what i need to do to solve this problem?

Any help appreciated.
Thanks in advance.</pre>

I dont know the answer you are looking for. Maybe something like the following will work better:
void Disp(out Detail d);

I am not sure what you are trying to do either. If you had any experience in C/C++ you would know not to blindly return allocated memory. Where do you free this memory?

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

i want to connect network pc through IP address. how it is possible. i am using namespace.

System.Net.Sockets;
System.Net

Duplicate Post . Please Ignore

Best Regards
-----------------
Abhijit Jana
Check Out My Latest Article

Java.NET : Integration of Java and .NET[^]
"Success is Journey it's not a destination"

i am trying to write a method that checks whether an object can be cast to a specific type:
that is, something like this:

bool CheckConfigVariable(object variable, Type expectedType) {
    if (variable is expectedType) {
         return true;
    }
    return false;
}

but that doesn't seem to work. I've also tried:

object hello;
hello = (object)variable;
    if (typeof(hello) == Type.GetTypeCode(typething)) {
	return true;
    }
return false;
}

which sort of works, but it can't find the hello variable in the typeof function. How would I go about checking whether the object is a certain type from what is provided in the parameters of the called method?

Mike

Please try with the code given below.

bool CheckConfigVariable(object variable, Type expectedType) 
{    
    if (variable.GetType() == expectedType) 
    {         
        return true;    
    }
    return false;
}

Software - Bundle of bugs covered with features.

typeof takes the type, I thought, as in typeof(int). I think you need hello.GetType()

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

This isn't exactly doing what i thought it was doing sorry.

variable.GetType() == expectedType is checking whether Object is equal to Type blah.

Its always returning false. I just want it to return if it is compatible with casting it to another object, not if it is the same type.

OK, perhaps generics will help. Because what you need is access to the type to call 'is' as you were trying to do. Passing a Type doesn't sound like it worked, but if the type is specified and your generic method says something like

return (myvar is T);

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Christian Graus wrote:
return (myvar is T);

where T is my parameter of type?

bool CheckConfigVariable(object variable, Type expectedType) {
return (variable is expectedType);
}

i get the error: The type or namespace name 'expectedType' could not be found (are you missing a using directive or an assembly reference?) (CS0246)

Yeah, but you write a generic method instead.

static bool CheckType<T>(object o)
{
return (o is T);
}

Then you call it like this:

DateTime dt = DateTime.Now;
bool b = CheckType<int>(dt);

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

wow, I didn't know how that worked. Now I'll have to go and do some more indepth reading on Generics.

Just another question on comparing types. How do enums fit into the picture? Is enum a type?
Can I compare a string to an enum (using the method above (using is keyword)), or one of the values in the enumto see if it can be converted?

You use Enum.Parse to convert a string to an enum. An enum is a type.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Thank you so much for your help, it is greatly appreciated. Smile | :)

Glad to help

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Type.IsInstanceOfType()

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

private static bool
F
(
    object o
,
    System.Type t
)
{
    if ( o == null )
    {
        throw ( new System.ArgumentNullException() ) ;
    }

    return ( t.IsAssignableFrom ( o.GetType() ) ) ;
}

And may I humbly suggest my TypeTransmogrifier[^] ?

protected void bn_delete_Click(object sender, EventArgs e)
{

bn_del.Attributes("onclick") = "return confirm('Are you sure you wish to delete these records?');";
GridViewRow row;
foreach (row in GridView1.Rows) {
CheckBox idcb = row.FindControl("CheckBox1");
TextBox id = row.FindControl("id");
if (idcb.Checked) {

DataAccessLayer dal = new DataAccessLayer();
dal.Connect();
dal.deleteDB("DELETE FROM StaffID Where StaffIDID = '" + id.Text + "'");
dal.Close();
getStaff();

}

error message: type and identifier are both required in a foreach
statement

twistz wrote:
foreach (row in GridView1.Rows)

I think you need to do

foreach (GridViewRow row in GridView1.Rows)

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

it states "the name "bn_del" does not exist in the current context",
"a local variable named "row" cannot be declared in this scope because it would give a different meaning to "row", which is already used in a "parent or current" scope to denote something else"

twistz wrote:
the name "bn_del" does not exist in the current context",

Well, that's a whole different problem. What makes you think it should exist ?

twistz wrote:
"a local variable named "row" cannot be declared in this scope because it would give a different meaning to "row", which is already used in a "parent or current" scope to denote something else"

That means you kept the old line in that defined that variable. You need to delete it. The error means what it says, you are defining it twice.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

twistz wrote:
foreach (row in GridView1.Rows) {
CheckBox idcb = row.FindControl("CheckBox1");
TextBox id = row.FindControl("id");
if (idcb.Checked) {

DataAccessLayer dal = new DataAccessLayer();
dal.Connect();
dal.deleteDB("DELETE FROM StaffID Where StaffIDID = '" + id.Text + "'");
dal.Close();
getStaff();

}

Try it :

foreach (var row in GridView1.Rows) 
{
 CheckBox idcb = row.FindControl("CheckBox1");
 TextBox id = row.FindControl("id");
 if (idcb.Checked) 
 {
  DataAccessLayer dal = new DataAccessLayer();
  dal.Connect();
  dal.deleteDB("DELETE FROM StaffID Where StaffIDID = '" + id.Text + "'");
  dal.Close();
  getStaff();
 }
}

Freshman

That's var abuse. Big Grin | :-D

Whatever happened to the 'use strongly typed variable' rule? May as well define eveything as an object Smile | :)

Bob
Ashfield Consultants Ltd