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I have a code that attaches an event to a form.
this.form.Resize += new EventHandler(form_Resize);
As you see this is done by += . If the above code is executed twice or multiple times,
like this:
this.form.Resize += new EventHandler(form_Resize); this...
Started by Pentium10 on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Here is a quick example that proves it:
using System; class Example { static event Action Bar; static void Main() { Bar... .
You are adding multiple delegates to the same method and each one will get called in turn .
It will in C# - I don't know about Java .
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Anyone have any idea when and why Page.OnLoad() executes twice in the ASP.NET lifecicle?
Started by AZ on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Do you have any controls.
It's a classic.
Img src="">, that makes IIS load the page twice.
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Which is the most efficient way to do this?
Sub pvaSetWeek(Optional weekOffset As Long = 0) Dim theDayToday As Long theDayToday = Weekday(Now, vbMonday) 'Set start to Monday Range("pvaStartDate") = Int(Now) - (theDayToday - 1) - (weekOffset * 7) 'Set ...
Started by Lunatik on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Plus, the fact that you are writing VBA and not some time / mission critical close-to-the-processor... .
In my opinion, one variable assignment will not be a noticeable overhead .
I would prefer it.
The first method is certainly better in terms of readability .
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I have an html button, see below. When it's clicked and AutoEventWireup="true", the Save_Click click handler is fired twice. When AutoEventWireup="False", it fires once.
Why is it firing twice? The button is not registered twice and no code which is adding...
Started by Tony_Henrich on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Ok I found out that that an HTMLButton fires.
Just a guess: the handler isn't being fired twice, but you've set up a similar behavior in the Page_Load event that makes it appear to be firing twice.
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Has anyone ran into an issue where the Page_Load method is called twice? I have a button that has an onclick event.
Started by Brandon Michael Hunter on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Things to check for:
AutoEventWireUp set to true.
Twice ?
We'll need to see your code to help you.
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I need to get the next value of a sequence twice in DB2 (version 9.1). Rather than executing the following twice:
SELECT nextval FOR schema.sequence AS id FROM dual
I would like to do something like:
SELECT nextval FOR schema.sequence AS id1, nextval ...
Started by Mike Stone on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
I would love to see a cleaner answer though, so please post an answer if you know one!
SELECT nextval FOR schema.sequence AS id FROM (SELECT 1 FROM dual UNION ALL SELECT 1 FROM dual) temp
Which results with:... .
Ok, it's a hack, but the following works...
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If the class is a custom class, after posting the notification, the selector corresponding to the observer is called twice.. Is there any better solution so that the selector is called only once?
Started by lance on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
If the observer class.
If the selector is called twice, you've probably registered for it twice.
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Hi guys, Does anyone have any problems with Page_Load being executed twice in Google Chrome? It's a short question, i do not know what else to explain...
I have a simple asp.net page and in Firefox and IE all it's working fine. But in Chrome the Page_...
Started by Cristian Boariu on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
If you set your image....
I found a little rewrite.
Different, it could be some javascript reexecuting or chrome following a redirect twice or something) and found that google loads the page twice when you redirect from the .htaccess file.
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In SQL Server 2005, when I write a query like
SELECT m.*, a.price p1, b.price p2 FROM mytable m LEFT JOIN products_table_1 a ON my_hash_function(m.name) = a.hash LEFT JOIN products_table_2 b ON my_hash_function(m.name) = b.hash
is my_hash_function(m.name...
Started by ercan on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
But this holds only.
B.hash
The execution plan shows that it indeed gets executed twice.
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I'm observing some really confusing behavior with the Application_BeginRequest event in my Global.asax file (in an ASP.NET MVC app). When running through the debugger, if I Refresh my browser (IE7), this event fires twice. If I click a link or otherwise...
Started by Kurt Schindler on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Do you have a reference in your HTML to something that also... .
Alter the constructor to add your item to the HttpContext .
I'm not sure why this is occuring but I find it's easier to create a BaseController class and have all my controllers inherit from it .
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