Question

I got the error

cannot implicity convert type 'System.Linq.IQueryable<EntityNetimoveis.San_Imovel>' to 'EntityNetimoveis.San_Imovel' An Explicit conversion exists (are you missing a cast ?)

This occurs when I try the following code

EntityNetimoveis.San2011Entities db = new EntityNetimoveis.San2011Entities();
EntityNetimoveis.San_Imovel im = db.San_Imovel.Where(a => a.Credenciada_Id == 10);

What type of conversion I have to do ?

Answer 1

EntityNetimoveis.San_Imovel im = db.San_Imovel.Where(a => a.Credenciada_Id == 10);

The type of im is an IQueryable<EntityNetimoveis.San_Imovel> because you are running a where query and there might be more than one result. If you want the first result matching your query you should use .FirstOrDefault(). Try changing you code as:

EntityNetimoveis.San_Imovel im = db.San_Imovel.FirstOrDefault(a => a.Credenciada_Id == 10);

If you want to return more than one entity and process them, lets say using a foreach loop, then you need to change the type of the return value to IEnumerable<Netimoveis.San_Imovel>. See the following example:

IEnumerable<EntityNetimoveis.San_Imovel> ims = db.San_Imovel.Where(a => a.Credenciada_Id == 10);

The you can use the following:

foreach(var im in ims) {
    // your code goes here
}