What wrong with my code, An error occurred local report

Question

Hi   this is the error : 'An error occurred while processing the local report NullReferenceException :  Object reference not set to an instance of an object     So i thing the problem is with this line : FrmRpt.RPAfficher.LocalReport.ReportEmbeddedResource =  "GestionDeStock.RAP.RP_Produit.rdlc" ;   and this is my code :  FrmRpt.RPAfficher.LocalReport.ReportEmbeddedResource =  "GestionDeStock.RAP.RP_Produit.rdlc" ;   ReportParameter PCat =  new  ReportParameter( "RP_Categorie" , Nom_Categorie);   ReportParameter PMarque =  new  ReportParameter( "RP_Marque" , Product.Nom_Produit);   ReportParameter PCouleur =  new  ReportParameter( "RP_Couleur" , Product.Couleur_Produit);   ReportParameter PTaille =  new  ReportParameter( "RP_Taille" , Product.Taille_Produit.ToString());   ReportParameter PQuantite =  new  ReportParameter( "RP_Quantite" , Product.Quatite_Produit.ToString());   ReportParameter PPrix =  new  ReportParameter( "RP_Prix" , Product.Prix_Produit.ToString());      string  ImageString = Convert.ToBase64String(Product.Image_Produit);   ReportParameter PImage =  new  ReportParameter( "RP_Image" , ImageString);      FrmRpt.RPAfficher.LocalReport.SetParameters( new  ReportParameter[] { PCat, PMarque, PCouleur, PTaille, PQuantite, PPrix, PImage });   FrmRpt.RPAfficher.RefreshReport();   FrmRpt.ShowDialog();   HELPPPPP please :'(    have a nice day

Jefferson S. Motta · Answer

Sometimes this message occurs but the error is on one line before, check what comes before:  FrmRpt.RPAfficher.LocalReport.ReportEmbeddedResource = "GestionDeStock.RAP.RP_Produit.rdlc" ;

Yanis Saadi · Answer

firstly thank u for the answer !      Yes an object is not set to an instance, by i don't know which one, i think the problem is in this line :   FrmRpt.RPAfficher.LocalReport.ReportEmbeddedResource =  "GestionDeStock.RAP.RP_Produit.rdlc" ;     But i don't know how to correct it, because it's the correct way to write the code no ?

Salman Beg · Answer

Object reference not set to an instance of an object means somewhere the object is null and you are using that object somewhere. Please do check where the object is null. Also check this video for reference,
https://youtu.be/GwtevbSLuXQ