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Convert string to nullable type (int, double, etc…)
... Nullable<T> result = new Nullable<T>();
try
{
if (!string.IsNullOrEmpty(s) && s.Trim().Length > 0)
{
TypeConverter conv = TypeDescriptor.GetConverter(typeof(T));
result = (T)conv.ConvertFrom(s);
}
}
catch { }
...
How to remove leading and trailing whitespace in a MySQL field?
... only removes spaces - not tabs, formfeeds etc. A combination of TRIMs specifying other whitespace characters may provide a limited improvement e.g. TRIM(BOTH '\r' FROM TRIM(BOTH '\n' FROM TRIM(BOTH '\f' FROM TRIM(BOTH '\t' FROM TRIM(txt))))). But the problem with this approach is only a single char...
How to access parent Iframe from JavaScript
Well, I have an IFrame, which calls a same domain page.
My problem is that I want to access some information from this parent Iframe from this called page (from JavaScript). How can I access this Iframe?
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Google Maps zoom control is messed up
...14 and zoom controls will look fine again. To avoid such bugs use more specific selectors in your CSS.
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Converting JSONarray to ArrayList
...ArrayList<String>();
JSONArray jArray = (JSONArray)jsonObject;
if (jArray != null) {
for (int i=0;i<jArray.length();i++){
listdata.add(jArray.getString(i));
}
}
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jQuery remove all list items from an unordered list
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If you have multiple ul and want to empty specific ul then use id eg:
<ul id="randomName">
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
<script>
$('#randomName').e...
Abort a git cherry-pick?
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Has the --abort option been removed/added in a specific git version? I'm running git 1.7.4.1 and "git cherry-pick --abort" results in a git cherry-pick usage message. I also grepped "git help cherry-pick" for "abort" and didn't find anything.
– danns87
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Using two CSS classes on one element [duplicate]
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If you want two classes on one element, do it this way:
<div class="social first"></div>
Reference it in css like so:
.social.first {}
Example:
https://jsfiddle.net/tybro0103/covbtpaq/
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Validating URL in Java
I wanted to know if there is any standard APIs in Java to validate a given URL?
I want to check both if the URL string is right i.e. the given protocol is valid and then to check if a connection can be established.
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How to set my phpmyadmin user session to not time out so quickly? [duplicate]
... number larger than 1800.
Note:
Always keep on mind that a short cookie lifetime is all well and good for the development server. So do not do this on your production server.
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