logo
down
shadow

Why would I get an "Invalid Cast" with this code?


Why would I get an "Invalid Cast" with this code?

By : user193386
Date : November 17 2020, 11:58 AM
like below fixes the issue The foreach will try to cast the control to the specified type which will give that invalid cast exception, what you should do is:
code :
foreach(Control ctrl in this.Controls)
{
    if(ctrl as TextBox != null)
    {
         //Textbox logic
    }
    if(ctrl as ComboBox!= null)
    {
         //ComboBox logic
    }
}


Share : facebook icon twitter icon
Sqlite - Insert gives error - Invalid cast exception - "Invalid cast from 'DateTime' to 'Int32'."

Sqlite - Insert gives error - Invalid cast exception - "Invalid cast from 'DateTime' to 'Int32'."


By : user2784221
Date : March 29 2020, 07:55 AM
I wish this helpful for you My guess is you don't have quotes around @dateTimeParam in query, and query parser assumes it is an int.
What really bugs me though is why you surround parameters by quotes at all.
code :
var command = new SQLiteCommand (
   "INSERT INTO DATAOUT (id, uid, application, eventname, clienttoken, version, datetime, data)" +
    " VALUES (@idParam, @userIdParam, @applicationNameParam, @eventNameParam, @clientTokenParam, @versionParam, @dateTimeParam, @dataParam)",
    Connection);
var command = new SQLiteCommand (
    "INSERT INTO DATAOUT (id, uid, application, eventname, clienttoken, version, datetime, data)" +
    " VALUES (@idParam,@userIdParam,@applicationNameParam,@eventNameParam,@clientTokenParam,@versionParam,@dateTimeParam,@dataParam)",
    Connection);

command.Parameters.AddWithValue("@idParam", insertData.ID);
command.Parameters.AddWithValue("@userIdParam", insertData.Uid);
command.Parameters.AddWithValue("@applicationNameParam", insertData.Application);
command.Parameters.AddWithValue("@eventNameParam", insertData.EventName);
command.Parameters.AddWithValue("@clientTokenParam", insertData.ClientToken);
command.Parameters.AddWithValue("@versionParam", insertData.Version);
command.Parameters.AddWithValue("@dateTimeParam", insertData.DateTime);
command.Parameters.AddWithValue("@dataParam", insertData.Data);

command.ExecuteNonQuery();
mongodb error: { "$err" : "invalid operator: $geoWithin", "code" : 10068 }

mongodb error: { "$err" : "invalid operator: $geoWithin", "code" : 10068 }


By : PotatoSalad
Date : March 29 2020, 07:55 AM
I wish this helpful for you I think your problem is the version itself. Check Mongo is throwing a syntax error due to "$geoIntersects" doesn't exist, it was changed from $intersects to $geoIntersects so I would try to run the same code using:
code :
s.find( {shape: {$intersects: {$geometry: BOX}}}, {_id:1})
version()
Why am I getting "Invalid Cast Exception" with this SQLite code?

Why am I getting "Invalid Cast Exception" with this SQLite code?


By : user2689352
Date : March 29 2020, 07:55 AM
To fix the issue you can do In this context the ExecuteScalar returns a System.Int64.
Applying the (int) cast creates the exception you are seeing
code :
object result = cmd.ExecuteScalar();
Console.WriteLine(result.GetType());  // System.Int64
SQLiteCommand cmd = new SQLiteCommand(qry, con);
count = Convert.ToInt32(cmd.ExecuteScalar());
Cloudflare API issue put request ("code":9020,"message":"Invalid DNS record type")

Cloudflare API issue put request ("code":9020,"message":"Invalid DNS record type")


By : user2358415
Date : March 29 2020, 07:55 AM
it should still fix some issue I am having issue while using cloudflare APIv4. Trying to update a dns record and not sure why am I receiving following error:             , You're sending a payload of:
code :
$POST = json_encode(array(
    "type" => "A",
    "name" => "...",
    ...
));
Azure Custom Vision returning {"code":"NotFoundIteration","message":"Invalid iteratio

Azure Custom Vision returning {"code":"NotFoundIteration","message":"Invalid iteratio


By : 김주봉
Date : October 06 2020, 04:00 PM
I wish did fix the issue. I have seen the same issue happened and the latest news I got from support team is: Problem was identified ; due to recently introduced defect some published models were removed ; after which prediction requests against these published models would fail. The original bug was fixed and a repair program was ran that put back the missing published models. So I think your issue should be fixed now as well. If not, please let us know. Thank you.
Regards, Yutong
Related Posts Related Posts :
  • Why does C# also not allow empty conditions in while loops?
  • Unable to get a block of code into my regex match groups
  • What is difference between dbcontext.Add and dbcontext.AddObject
  • How do I update the file version number of C# DLL without recompiling?
  • Value for html control always null
  • HttpClient hangs when timeout is setting (Windows Phone)
  • Handle Multiple Form tag in asp.net page?
  • create word document with html content in c#
  • Confusion about Find And Replace
  • Format sms messages in Clickatell
  • Automated Function Overload
  • String to date in MS Access SQL statement gives type mismatch error
  • ShowDialog exiting on certain events
  • Is there a try Convert.ToInt32... avoiding exceptions
  • How to move wpf application into minimize tray at Window Start-up C#?
  • How to change display format of long variable?
  • How to use Addfields in MongoDB C# Aggregation Pipeline
  • MsTest TestCleanup method not called when an unhandled exception is thrown
  • missing last data when exporting gridview to excel
  • How to add array of objects to List in c#
  • Lambda Expression to order (sort) my list collection
  • Library for displaying music notation
  • How to compare two dictionaries in c# and get the output as True and False after validation
  • specify fields to be serialized with JSON
  • How do you obtain the content of a specific node using XmlDocument in C#?
  • How to ignore the first line in a csv file when you read the csv file in C#
  • c# - Problem calling public void from class
  • How to tell a class which objects it should create? Type vs. object confusion :(
  • Save CheckBox state to xml
  • WIX CAQuietExec NETSH Command Fails
  • Issues sending http put request every 60 seconds to RoR app
  • ConfigurationManager.ConnectionStrings.ConnectionString Issue
  • Real size WPF controls for printing
  • How to cancel properly?
  • C# String multiplication error
  • Using Solrnet and Assigning Attributes with Entity Framework Generated POCOs
  • Regex pattern for single backslash
  • TextBox: insert spaces for credit card number?
  • C# DLL loaded for exe-application is not found when launching similar DLL by rundll32.exe
  • Debug a Windows Service with WCF library
  • Open a file from an external assembly?
  • Servicestack RegistrationFeature Unable to bind request
  • Index was outside the bounds of the array confusion
  • Error in Xml to List code. The ':' character, hexadecimal value 0x3A, cannot be included in a name
  • I am trying to do a while loop with a string conditional statement in C#
  • C# 'Cannot access a disposed object. Object name: 'SslStream'.'
  • How to make Gecko use seperate CookieContainer per instance?
  • C# Advanced form "please wait"
  • Send and Receive data C# using network stream
  • How to discover that appsettings changed in C#?
  • Check what needs full trust
  • What is the execution order of an MVC Razor view/layout
  • Table designer (Entity Framework) is too resource intense
  • How to clean up an exception string so it can be displayed via Javascript Alert?
  • Configuring Amazon SES Feedback Notifications via Amazon SNS in ASP.NET MVC (C#)
  • C# api responce and request
  • Dynamodb putitem function not working properly
  • theme in windows phone(light or dark) using c#
  • Backup attached database file(.mdf) using c# and SQL Server
  • What is 'TextFile' and where it is uses in WPF project
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org