c# - Update CanExecute from another ViewModel's actions -


where run createbestpricelistcanexecute method in order update canexecute in below code snippet? 

class bestpriceviewmodel : viewmodelbase {     observablecollection<bestpricemodel> bestpricelist = new observablecollection<bestpricemodel>();      public icommand createbestpricelistcommand;     private bool canexecute = true;     public bestpriceviewmodel()     {         createbestpricelistcommand = new relaycommand(createbestpricelist, param => this.canexecute);         btnloaditemlist = "import";     }     public observablecollection<bestpricemodel> bestpricelist     {         { return this.bestpricelist; }         set         {             if (this.bestpricelist != value)             {                 this.bestpricelist = value;                 this.onpropertychanged("bestpricelist");             }         }     }      public bool canexecute     {                 {             return this.canexecute;         }          set         {             if (this.canexecute == value)             {                 return;             }              this.canexecute = value;         }     }     public icommand createbestpricelistcommand     {                 {             return createbestpricelistcommand;         }         set         {             createbestpricelistcommand = value;         }     }      public bool createbestpricelistcanexecute()     {         bool dbcheck = databaseaccess.connection.state != connectionstate.open &&         databaseaccess.connection.state != connectionstate.fetching &&         databaseaccess.connection.state != connectionstate.executing ? true : false;         return dbcheck;     } }

my createbestprice method using database, , has automatic database updater running in background uploads information sometimes. need canexecute false @ times, there way it?

just update canexecute property createbestpricelistcanexecute method:

public void createbestpricelistcanexecute() {     canexecute = databaseaccess.connection.state != connectionstate.open &&     databaseaccess.connection.state != connectionstate.fetching &&     databaseaccess.connection.state != connectionstate.executing ? true : false; }

then it's how call createbestpricelistcanexecute method. call dispatchertimer.tick event handler example.


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