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The members are native data (value) types, so ((this.a == test.a) && (this.b == test.b)) will properly evaluate to a boolean expression. The runtime already knows how to test for integer equality, so the logic you present should work just fine.
A few things to keep in mind, the as operator will return null if obj is not an object of type Tester (I assume you meant Tester and not Test as you have in your example) so you should test that test is not null before using it. You really should test to make sure obj isn't null as well.
The modified method would look like this:
public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
Tester tester = obj as Tester;
if (tester == null)
{
return false;
}
if ((this.a == tester.a) && (this.b == tester.b))
{
return true;
}
else
{
return false;
}
}Also, you should also be overriding the GetHashCode(), equality, and inequality operators.
Finally, you should consider deriving your class from IEquatable<T> if you are using .NET 2.0/3.0 and implement the following functions:
public bool Equals(Tester obj)
and
public static bool Equals(Tester t1, Tester t2)
although the static method is optional but convenient
-----------------------------
In just two days, tomorrow will be yesterday.
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Thanks Scott,
exactly what I needed. You hit the nail on the head! Much appreciated.
Cheers,
Goebel
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hai friends
i want to generate word document by populationg it with the values fethed from sql server database
can u tell me thay way to do it
explore the world of imagination and be known as creative
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Ista wrote: LookupItem<t.gettype()> li = new LookupItem<t.gettype()>();
As far as I understand generics, this cannot work. Generics allow you to write code that is able to deal with unknown types in a type-safe way, but to be type-safe a concrete type has to be specified when the code is used. In your case the result of t.GetType() is unknown, so that type-safety cannot be guaranteed. I think you have to do it the none-generic way using Object or a base class.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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actually you can create the type via reflection to bind against.
I worked it out so it can be binded at design time and I get generic binding with abstract types.
the final resulting call was this:
LookupList<LookupItem<TopicType>> list = (LookupList<LookupItem<TopicType>>)li.Load(LookupTypes.TOPICTYPE);
So it worked and allowed me to use generics to bind, so I get type safety. The power of generics with reflection is boundless.
wow
thanks for helping.
nick
--------------------------------------------------------
1 line of code equals many bugs. So don't write any!!
My mad coder blog
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ass hole 
explore the world of imagination and be known as creative
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Does anyone have a link to .dll I can use in my .net code to edit mp3 tags.
how vital enterprise application are for proactive organizations leveraging collective synergy to think outside the box and formulate their key objectives into a win-win game plan with a quality-driven approach that focuses on empowering key players to drive-up their core competencies and increase expectations with an all-around initiative to drive up the bottom-line. But of course, that's all a "high level" overview of things
--thedailywtf 3/21/06
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Hi all... Just a quick one... I am trying to pull data from a mysql database and I am falling foul of a null data error...
I am querying a mysql database and pulling a record containing 38 items... However it is throwing errors because some of the items are null...
What is the best way to detect if the item is null? So I can do something about it...
Thanks in advance,
Phil
"Rules are for the obedience of fools and the guidance of wise men"
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Can you provide the code giving error?
Mubashir
Every job is a self portrait of the person who did it.
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Here is a bit of the code:
string mysql_query = "SELECT * FROM rt_sip WHERE id = " + id + " ORDER BY id";<br />
<br />
mysql_reader = mysql_send_query(mysql_query);<br />
<br />
while (mysql_reader.Read())<br />
{<br />
temp_id = (int)mysql_reader[0];<br />
temp_name = (string)mysql_reader[1];<br />
temp_accountcode = (string)mysql_reader[2];<br />
...<br />
...<br />
...<br />
}
Phil
"Rules are for the obedience of fools and the guidance of wise men"
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Use the IsDBNull method. Example:
if (mysql_reader.IsDBNull(1) {
temp_name = null;
} else {
temp_name = mysql_reader.GetString(1);
}
---
b { font-weight: normal; }
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Yep I tried that but got the same error message...
Will keep looking...
"Rules are for the obedience of fools and the guidance of wise men"
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Phillip Hodges wrote: Yep I tried that but got the same error message...
Then you did something wrong, because that method works.
Where exactly do you get the error message, and what exactly is the error message?
---
b { font-weight: normal; }
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Have you tried checking DBNull or IsDBNull()?
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DBValue.IsNull (or something like that)
That should be DBNull.Value
Good luck...
V.
Stop smoking so you can: enjoy longer the money you save.
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how to create the tab page control which is present in the project property window?
is that .Net componet is available for reuse?
sakthi
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yea sure it is
jamil abou khalil
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can u say its exact name and its namespace?
sakthi
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please guide me about creating a horizontal dockable window within Mdi childform.
* I just want to create a MDI interface.
* a child form that can be minimized, maximized in MdiParent client area.
* Also a dockable window (similiar to output window in visual studio 2003) that makes it space with childform.
Please reply.
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if you are creating an MDI, then all the childforms have bydefault the funcationality of minimized, maximized.
can you clear your question about dockable window (similiar to output window in visual studio 2003).
regards
sAqIb
"Our scientific power has outrun our spiritual power. We have guided missiles and misguided men."
Dr. Martin Luther King Jr.
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Dear sAqIb!
I need a single dockable window (similar to output window in IDE) alongwith that child form in the area of Parent form.
Thank you.
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I was looking for the same sort of functionalities described above.
Try
http://sourceforge.net/projects/dockpanelsuite/[^]
There is a good sample app to get you started too.
Set the parent form's IsMdiContainer property to true.
-- modified at 19:47 Wednesday 8th November, 2006
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Thank you dear.
I have seen that project at sourceforge.net but how can i modify it for my functionality?
Can u guide?
Regards
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Hi
I have a ComboBox control and i wrote comboBox1_SelectedIndexChanged() event for it.
Now ReFilling combobox causes to running SelectedIndexChanged() event each time when new item added to combobox and this slows the program or maybe cause to unwanted problems.
I use below code but i want a better way or setting a property of combobox which i don't know about it:
private bool allowCmbChange;
Form_Load()
{
allowCmbChange=false;
for (int i=0;i<10;i++)
{
comboBox1.Items.Add(i.toString());
}
allowCmbChange=true;
}
private void comboBox1_SelectedIndexChanged()
{
if (allowCmbChange==false)
return;
.
.
.
}
Thank you for helping me.
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