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How to check if a variable exists in a FreeMarker template?
...:
[#if userName??]
Hi ${userName}, How are you?
[/#if]
Or with the standard freemarker syntax:
<#if userName??>
Hi ${userName}, How are you?
</#if>
To check if the value exists and is not empty:
<#if userName?has_content>
Hi ${userName}, How are you?
</#if>
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how to mysqldump remote db from local machine
... like to use the mysqldump on my machine to connect to the remote database and do the dump on my machine.
4 Answers
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Convert a Unicode string to a string in Python (containing extra symbols)
...hat) containing some currency symbols to a "Python string" (whatever ...) and you think that a remove-some-diacritics delete-other-non-ascii characters kludge answers his question???
– John Machin
Jul 30 '09 at 16:25
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Getting DOM elements by classname
I'm using PHP DOM and I'm trying to get an element within a DOM node that have a given class name. What's the best way to get that sub-element?
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Using MySQL with Entity Framework [closed]
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Does this support EF4 and VS2010? I installed the connector and tried to add a new connection in VS2010 but MySQL does not show up in the list of providers
– Abhijeet Patel
May 13 '10 at 7:07
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Spring schemaLocation fails when there is no internet connection
I am using Spring and in application-context.xml I have the following definitions:
18 Answers
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How to pass anonymous types as parameters?
... I checked this as correct answer, because of dynamic usage. I real came handy for me. Thanks :)
– Saeed Neamati
Jul 9 '11 at 5:10
1
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Which Radio button in the group is checked?
...f the radio buttons be directly in the same container (eg, Panel or Form), and that there is only one group in the container. If that is not the case, you could make List<RadioButton>s in your constructor for each group, then write list.FirstOrDefault(r => r.Checked).
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How do I determine k when using k-means clustering?
I've been studying about k-means clustering , and one thing that's not clear is how you choose the value of k. Is it just a matter of trial and error, or is there more to it?
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Difference Between Select and SelectMany
I've been searching the difference between Select and SelectMany but I haven't been able to find a suitable answer. I need to learn the difference when using LINQ To SQL but all I've found are standard array examples.
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