Unable to hide the control in WPF using MVVM -


when selected values in combo box,i have hide control. have write code shown in below. please correct me made mistake in that.

view code:

<combobox x:name="cboshowrulewhere" height="20" width="200" itemssource="{binding source={staticresource listedview}, path=filterrules}" displaymemberpath="rulename"  selectedvaluepath="ruleid" selectedvalue="{binding source={staticresource listedview}, path=selectedrulename, updatesourcetrigger=propertychanged, mode=twoway}" ></combobox> <combobox height="21" horizontalalignment="left" margin="6,4,0,0" x:name="cborulecondtion" visibility="{binding path=isbuttonvisible,converter={staticresource booltovisible}}" verticalalignment="top" width="212" />

viewmodel code:

 private datatable m_selectedrulename;     public datatable selectedrulename     {                 {             return m_selectedrulename;         }         set         {             m_selectedrulename = value;             base.raisepropertychangedevent("selectedrulename");         }     }       private bool _isbuttonvisible;     public bool isbuttonvisible     {         { return _isbuttonvisible; }         set         {             _isbuttonvisible = value;             base.raisepropertychangedevent("isbuttonvisible");         }     }

where have correct? please me asap. in advance..

there's not whole lot go on here. instance, setting isbuttonvisible based on rule criteria? here ideas:

1) don't create backing field isbuttonvisible. instead, have return correct analysis.

public bool isbuttonvisible { { return selectedrulename == "isvisiblerule"; } }

2) can fire notify propery changed event anywhere. in case, want isbuttonvisible binding reevaluated every time selectedrulename changes:

private datatable m_selectedrulename; public datatable selectedrulename {         {         return m_selectedrulename;     }     set     {         m_selectedrulename = value;         base.raisepropertychangedevent("selectedrulename");         base.raisepropertychangedevent("isbuttonvisible");     } }

3) selectedrulename datatable? seem odd me because indicates multiple rows. longer post, avoid datatable altogether , change combobox item source observablecollection. "selectedrulename" of type t (not datatable).

4) along same lines, have found greater success using selecteditem instead of selectedvalue.

i hope of helps.


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