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Adding placeholder text to textbox
...t = "";
}
}
public void AddText(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(myTxtbx.Text))
myTxtbx.Text = "Enter text here...";
}
Thats just pseudocode but the concept is there.
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Converting Java objects to JSON with Jackson
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ObjectWriter ow = new ObjectMapper().writer().withDefaultPrettyPrinter();
String json = ow.writeValueAsString(object);
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How to add a progress bar to a shell script?
... order to accomplish the same thing you need to put \r\c at the end of the string, instead of just \r
– Justin Jenkins
Apr 2 '12 at 1:17
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Datatype for storing ip address in SQL Server
...S
BEGIN
DECLARE @str AS VARCHAR(15)
SELECT @str = CAST( CAST( SUBSTRING( @ip, 1, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
+ CAST( CAST( SUBSTRING( @ip, 2, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
+ CAST( CAST( SUBSTRING( @ip, 3, 1) AS INTEGER) AS VARCHAR(3) ) + '.'
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Update git commit author date when amending
...erything is much easier than original answer made us think, just use empty string!
git commit --date= --amend
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Stack, Static, and Heap in C++
...e are two examples:
// static storage duration. in global namespace scope
string globalA;
int main() {
foo();
foo();
}
void foo() {
// static storage duration. in local scope
static string localA;
localA += "ab"
cout << localA;
}
The program prints ababab, because ...
How can I get my webapp's base URL in ASP.NET MVC?
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Assuming you have a Request object available, you can use:
string.Format("{0}://{1}{2}", Request.Url.Scheme, Request.Url.Authority, Url.Content("~"));
If it's not available, you can get to it via the context:
var request = HttpContext.Current.Request
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Jasmine JavaScript Testing - toBe vs toEqual
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For primitive types (e.g. numbers, booleans, strings, etc.), there is no difference between toBe and toEqual; either one will work for 5, true, or "the cake is a lie".
To understand the difference between toBe and toEqual, let's imagine three objects.
var a = { bar: 'ba...
How to check if a specified key exists in a given S3 bucket using Java
... new AmazonS3Client(new ClasspathPropertiesFileCredentialsProvider());
String bucketName = getBucketName();
s3.createBucket(bucketName);
S3Object object = s3.getObject(bucketName, getKey());
} catch (AmazonServiceException e) {
String errorCode = e.getErrorCode();
if (!errorCode....
How can I do an UPDATE statement with JOIN in SQL Server?
...to do it in ANSI/ISO (aka should work on any SQL DBMS), MySQL, SQL Server, and Oracle. Be advised that my suggested ANSI/ISO method will typically be much slower than the other two methods, but if you're using a SQL DBMS other than MySQL, SQL Server, or Oracle, then it may be the only way to go (e.g...