Error loading shapefile in Arcobject c# : Exception from HRESULT: 0x80040228 -

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i want read shapefile arcobject , c#. used arcgis snippet , write follow code:

esri.arcgis.runtimemanager.bind(esri.arcgis.productcode.desktop); iworkspacefactory wsf = new shapefileworkspacefactory(); iworkspace ws = wsf.openfromfile(@"e:\data\shap file iran\irn_adm\", 0); ifeatureworkspace fws = ws ifeatureworkspace; ifeatureclass fc = fws.openfeatureclass("province.shp");

but in line 3 returned error:

exception hresult: 0x80040228

whats matter?


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