What is the meaning of following code in c#

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I got following code in my project . I am new to c#. Please explain the concept behind this ..!!

m_sSearchText = m_sSearchText == "" ? "eyeglasses" : m_sSearchText;

Thanks..!!

Posted 1-Mar-13 18:15pm

k@ran

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bbirajdar · Accepted Answer · 2013-03-01T18:22:00

Solution 1

It means

C#

if(m_sSearchText == "" )
{
m_sSearchText="eyeglasses";
}
else
{
m_sSearchText=m_sSearchText;
}

It is called "ternary if operator". More details here http://msdn.microsoft.com/en-us/library/ty67wk28(v=vs.80).aspx[^]

Posted 1-Mar-13 18:22pm

bbirajdar

Jaymin Rajani · Accepted Answer · 2013-03-01T18:22:00

It means if your m_sSearchText is empty than by default it will take the value as "eyeglasses" else it will take the value of m_sSearchText.
Its a conditional statement. The syntax is.
variable=="value"?true:false
In Your case..
variable-->m_sSearchText
value-->""
true-->"eyeglasses"
false-->m_sSearchText

bkthebest · Accepted Answer · 2013-03-01T18:32:00

It is so simple

m_sSearchText == "" ? "eyeglasses" : m_sSearchText;

now the above line have a unary condition
means if your textbox "m_sSearch.Text" does not have any value then above line of code returns "eyeglasses"

Suppose your textbox named "m_sSearch.Text" have any value like "somevalue"
then it returns "somevalue"

another explanation:

"m_sSearchText == "" " if this is true then returns "eyeglasses"
else m_sSearch.Text

Sorry for my bad English
I hope you understand

What is the meaning of following code in c#

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