c# - How do I change the value of a query string parameter? -

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i have string representation of url this:

http://www.goodstuff.xxx/services/stu/query?where=1%3d1&text=&objectids=231699%2c232002%2c231700%2c100646&time=

it's url string object in code. how change value of objectids? need find string, objectids, locate & before , after, , replace contents desired value? or there better way?

this .net 4.5 fw console app...

if rest of url fixed, locate id manually, , use string.format , string.join insert ids it:

var urlstring = string.format(     "http://www.goodstuff.xxx/services/stu/query?where=1%3d1&text=&objectids={0}&time=" ,   string.join("%", ids) );

this insert %-separated list of ids code url template.


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