Specified cast is not valid?

Specified cast is not valid?

By : Aliease
Date : November 18 2020, 11:13 AM
I think the issue was by ths following , I have a table created in ASP.net and I want to populate the table with information from the database once the page has been loaded. I'm getting an error that the specified cast is not valid. What am I doing wrong? Heres my code , From your comment:
code :
var Date = reader.GetDateTime(0);
var Time = reader.GetTimeSpan(1);  // equivalent to time(7) from your database
var Date = Convert.ToDateTime(reader["YOUR_DATE_COLUMN"]);
var Time = (TimeSpan)reader["YOUR_TIME_COLUMN"];

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MVC3 / C# - Invalid Cast Exception - Specified cast is not valid

MVC3 / C# - Invalid Cast Exception - Specified cast is not valid

By : T_Baumgarten
Date : March 29 2020, 07:55 AM
it fixes the issue httpContext.Request.RequestContext.RouteData.Values["id"] is probably a string, therefore you need to parse it:
code :
var idStr=(string)(httpContext.Request.RequestContext.RouteData.Values["id"]);
int id;
if(int.TryParse(idStr, out id))
Specified cast is not valid. Is it because I am attempting to cast an object?

Specified cast is not valid. Is it because I am attempting to cast an object?

By : Metin
Date : March 29 2020, 07:55 AM
like below fixes the issue I have the following C# code that I am using to attempt to query an oracle database. I am simply trying to get the numeric result so that I can output it to the console and eventually hold it in a variable. , use ExecuteScalar
code :
OracleCommand comm = new OracleCommand(query, dbConnection);               
decimal count = (decimal)comm.ExecuteScalar();
Console.WriteLine("Connecting Okay");
CRM Dynamics 2015 Plugin Cast Error, Specified Cast Is not valid

CRM Dynamics 2015 Plugin Cast Error, Specified Cast Is not valid

By : Leap250
Date : March 29 2020, 07:55 AM
Any of those help the field phonenumber from entity phonecall is Single Type of Text (with format Phone), this means that is a string (as your custom field if the field settings are the same) so your code can be:
code :
string NumberToCall = phoneCallEntity.Contains("phonenumber") ? phoneCallEntity["phonenumber"].ToString() : "";
string ReceiveCallOn = phoneCallEntity.Contains("new_destination") ? phoneCallEntity["new_destination"].ToString() : "";
Boolean cast Specified cast is not valid error

Boolean cast Specified cast is not valid error

By : James Azerty
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Since the type of the value that you read from the registry is a string, you cannot cast it. However, you can convert it:
code :
checkBox1.Checked = Convert.ToBoolean(
    ,   "SpaceBetween1"
    ,   null
Invalid Cast Exception - cast is not valid

Invalid Cast Exception - cast is not valid

By : KofS79
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You cannot cast an object directly to long. You should use Convert.ToInt64() which even casts an object value:
code :
string tenantCoordinates = await tenantSettingsAppService.GetTenantCoordinates(Convert.ToInt64(obj));
long obj;
// ... 
string tenantCoordinates = await tenantSettingsAppService.GetTenantCoordinates(obj);
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