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How do we programatically De-select all option of Multiselect Optionset in MSCRM using C#

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Posted on by Ishan Sharma

308

Hi all,

I have a requirement in which i want to De-select all options of Multiselect optionset field in Dynamics CRM form when i click Save.

So it first check the all matching values in database against the values in Multiselect optionset field. After this it has to Uncheck all options in that field and will check only those option those are in database.

Right now my requirement is I want all values in the Multiselect optionset to be Un-Checked or De-select when the user clicks Save.

for this i have already written below code and it is showing following error.

Code: entity["new_multioptionset"] = null;

Thanks in Advance,
Ishan Sharma

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Customization / Solutions / SDK and API

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a33ik 84,323 Most Valuable Professional on at

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RE: How do we programatically De-select all option of Multiselect Optionset in MSCRM using C#

Hello,

I experienced similar behavior when I tried to put bull to this field during creation. So here is what you should do to make your code work (pseudocode follows):

if (this is create event)

{

//just ignore population of multioptionset field

}

else if (this is update){

entity["new_multioptionset"] = null;

}

Have fun!

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