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How do I add a ToolTip to a control?
...
So I guess it doesn't matter if the toolTip1 variable drops out of scope?
– Svish
Aug 27 '09 at 8:06
1
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Unable to evaluate expression because the code is optimized or a native frame is on top of the call
...o Response.End. For example: Response.Redirect
("nextpage.aspx", false); If you use this workaround, the code
that follows Response.Redirect is executed.
For Server.Transfer, use the Server.Execute method instead.
Symptoms
If you use the Response.End, Response.Redirect, or Server.Tran...
Error handling in getJSON calls
...cally (by configuring your AJAX calls before actually calling them) or specifically (with method chain).
'generic' would be something like:
$.ajaxSetup({
"error":function() { alert("error"); }
});
And the 'specific' way:
$.getJSON("example.json", function() {
alert("success");
})
.succ...
Converting string to byte array in C#
...
If you already have a byte array then you will need to know what type of encoding was used to make it into that byte array.
For example, if the byte array was created like this:
byte[] bytes = Encoding.ASCII.GetBytes(someSt...
Setting “checked” for a checkbox with jQuery
...prop('checked', true);
$('.myCheckbox').prop('checked', false);
DOM API
If you're working with just one element, you can always just access the underlying HTMLInputElement and modify its .checked property:
$('.myCheckbox')[0].checked = true;
$('.myCheckbox')[0].checked = false;
The benefit to ...
Why does this code segfault on 64-bit architecture but work fine on 32-bit?
...even on a platform where sizeof(int)==sizeof(int*) holds true, for example if the calling convention used different registers for returning pointers than integers)
The comp.lang.c FAQ has an entry discussing why casting the return from malloc is never needed and potentially bad.
...
How to split the name string in mysql?
...eld into first, middle, and last names. The middle name will show as NULL if there is no middle name.
SELECT
SUBSTRING_INDEX(SUBSTRING_INDEX(fullname, ' ', 1), ' ', -1) AS first_name,
If( length(fullname) - length(replace(fullname, ' ', ''))>1,
SUBSTRING_INDEX(SUBSTRING_INDEX(fu...
How do you track record relations in NoSQL?
...Use the same criteria you would use to denormalize a relational database: if it's more important for data to have cohesion (think of values in a comma-separated list instead of a normalized table), then do it that way.
But this inevitably optimizes for one type of query (e.g. comments by any user ...
Exposing database IDs - security risk?
...
There are risks associated with exposing database identifiers. On the other hand, it would be extremely burdensome to design a web application without exposing them at all. Thus, it's important to understand the risks and take care to address them.
The first danger is what OWASP ...
Why am I getting this error: No mapping specified for the following EntitySet/AssociationSet - Entit
...oes not exist. You can drag entities, associate them and so forth and yet, if you take a look at the SSDL on the EDMX file, you will see that none of the entities have an associated storage table in the SSDL.
That changes when you click the Generate Database From Model context menu item. The confus...