private Basket createNewBasket(HttpContextBase httpContext)
{
//create a new basket.
//fisrt create a new cookie.
HttpCookie cookie = new HttpCookie(BasketSessionName);
//now create a new basket and set the creation date.
Basket basket = new Basket();
basket.DateBasket = DateTime.Now;
basket.Id = Guid.NewGuid();
//add and persist in the database.
baskets.Insert(basket);
baskets.Commit();
//add the basket id to a cookie
cookie.Value = basket.Id.ToString();
cookie.Expires - DateTime.Now.AddDays(1);
httpContext.Response.Cookies.Add(cookie);
return basket;
}
I have the following errors:
basket.Id = Guid.NewGuid();
the error is: cannot implicitly convert type "System.Guid" to "int"
Look's like you've defined Id as an integer so you will not be able to assign a Guid to it. Look to where Id is defined and change it if you need a Guid
A guid is a 128 bits. If .net supported int128, you’d could store a guid in an int. By convention, when a guid is converted to a string, it’s hex with dashes.
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cannot implicitly convert type "System.Guid" to "int"
Feb 01, 2020 11:32 PM|lujain1996m|LINK
the full code:
private Basket createNewBasket(HttpContextBase httpContext) { //create a new basket. //fisrt create a new cookie. HttpCookie cookie = new HttpCookie(BasketSessionName); //now create a new basket and set the creation date. Basket basket = new Basket(); basket.DateBasket = DateTime.Now; basket.Id = Guid.NewGuid(); //add and persist in the database. baskets.Insert(basket); baskets.Commit(); //add the basket id to a cookie cookie.Value = basket.Id.ToString(); cookie.Expires - DateTime.Now.AddDays(1); httpContext.Response.Cookies.Add(cookie); return basket; }I have the following errors:
the error is: cannot implicitly convert type "System.Guid" to "int"
and the other error:
How to fix them?
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Re: cannot implicitly convert type "System.Guid" to "int"
Feb 02, 2020 12:26 AM|mbanavige|LINK
Look's like you've defined Id as an integer so you will not be able to assign a Guid to it. Look to where Id is defined and change it if you need a Guid
For this one, replace the - with an =
i.e.
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5961 Points
2466 Posts
Re: cannot implicitly convert type "System.Guid" to "int"
Feb 02, 2020 05:26 AM|KathyW|LINK
To elaborate, GUID's are not integers, and can't be cast to integers. They are hex numbers (alphanumeric) with hyphens.
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Re: cannot implicitly convert type "System.Guid" to "int"
Feb 02, 2020 12:48 PM|DA924|LINK
A GUID can never be an integer.
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Re: cannot implicitly convert type "System.Guid" to "int"
Feb 02, 2020 06:00 PM|bruce (sqlwork.com)|LINK
A guid is a 128 bits. If .net supported int128, you’d could store a guid in an int. By convention, when a guid is converted to a string, it’s hex with dashes.
Contributor
5961 Points
2466 Posts
Re: cannot implicitly convert type "System.Guid" to "int"
Feb 02, 2020 08:42 PM|KathyW|LINK
The OP was doing this:
NewGuid() does not produce an int. It produces the alphanumeric hex numbers with hyphens.
https://docs.microsoft.com/en-us/dotnet/api/system.guid.newguid?view=netframework-4.8
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Re: cannot implicitly convert type "System.Guid" to "int"
Feb 03, 2020 12:35 AM|bruce (sqlwork.com)|LINK
this is not true. NewGuid produces a structure of 128 bits (16 bytes). The ToString() is the hex with dashes.
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Re: cannot implicitly convert type "System.Guid" to "int"
Feb 03, 2020 09:26 AM|Yongqing Yu|LINK
Hi lujain1996m,
As the previous replies, System.Guid cannot be converted to int type.
Therefore, it is recommended that you convert the Id field in the class Basket to a string type, and then receive Guid.NewGuid().ToString() again.
You can refer to this link for more details:
C# guid and SQL uniqueidentifier
Best Regards,
YongQing.
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