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UITableView with fixed section headers
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@bachonk i am using a stretchable header view. and my style is UITableViewStyleGrouped. i want to fix the header when scrolling up. if i make it UITableViewStylePlain then the header is getting fixed in the middle of the screen, i want to scroll the ...
Access to Modified Closure (2)
...nt -= foo;
Likewise, if you want a once-only event-handler (such as Load etc):
EventHandler bar = null; // necessary for "definite assignment"
bar = delegate {
// ... code
obj.SomeEvent -= bar;
};
obj.SomeEvent += bar;
This is now self-unsubscribing ;-p
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What's the difference between an id and a class?
...he opening tag of the block has an ID of, say, "main", "header", "footer", etc.
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Best way to check if a Data Table has a null value in it
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You can null/blank/space Etc value using LinQ
Use Following Query
var BlankValueRows = (from dr1 in Dt.AsEnumerable()
where dr1["Columnname"].ToString() == ""
|| dr1["Columnna...
Android buildscript repositories: jcenter VS mavencentral
...vel of geeky. And with some more reason for example a security concern and etc, Android Studio team decided to switch the default repository to jcenter instead as you can see that once you create a new project from latest version of Android Studio, jcenter() would be automatically defined instead of...
Unusual shape of a textarea?
...le. And I think you can also handle the rest of the CSS (font-size, color, etc.) :)
Full code sample
.block_left {
background-color: red;
height: 70px;
width: 100px;
float: left;
border-right: 2px solid blue;
border-bottom: 2px solid blue;
}
.block_right {
background-c...
Fetch the row which has the Max value for a column
...d AND t1."Date" < t2."Date")
WHERE t2.UserId IS NULL;
In other words: fetch the row from t1 where no other row exists with the same UserId and a greater Date.
(I put the identifier "Date" in delimiters because it's an SQL reserved word.)
In case if t1."Date" = t2."Date", doubling appears. Usuall...
WPF: How to display an image at its original size?
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Here is a similar question. Generally setting Stretch="None" is enough.
It is also very important what DPI has the image set in metadata. It took me quite a while before figuring out that if the image's DPI is different from the monitor's DPI (usually 96), WPF will automat...
Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant f
...d setting values for those bindable properties (i.e. shadow, corner radius etc.) then remove those properties from UIView extension (for some reason) but the following <userDefinedRuntimeAttributes> remained in xml (of foo.storyboard):
<userDefinedRuntimeAttributes>
<userDefinedRun...
Difference between database and schema
...initions for other database objects such as tables,views,stored procedures etc.
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