I have a Sqlite database that has this table: CREATE TABLE [Mytable]( [ID] INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL UNIQUE, [Name] VARCHAR NOT NULL UNIQUE, UNIQUE([Name])); I am trying to scaffold this database, I am using this command...
System.ArgumentException: The string argument 'name' cannot be empty. at Microsoft.EntityFrameworkCore.Utilities.Check.NotEmpty(String value, String parameterName) at Microsoft.EntityFrameworkCore.Metadata.Builders.EntityTypeBuilder.HasIndex(String[] propertyNames, String name) at Microsoft.EntityFrameworkC...
arg_paramName是异常消息中的一部分,它表示引发异常的参数名称。这有助于开发者快速定位问题所在,了解是哪个具体的参数导致了异常。例如,如果异常消息是“The value cannot be an empty string. Parameter name: userName”,那么开发者就可以知道是userName这个参数为空字符串,从而引发了异常。
ErrorCode=InvalidParameter,'Type=Microsoft.DataTransfer.Common.Shared.HybridDeliveryException,Message=The value of the property 'containerName' is invalid: 'The argument must not be empty string. Parameter name: containerName'.,Source=,''Type=System.ArgumentException,Message=The ar...
public class Employee { public Employee() {} public Employee(string n, string id, string p) { this.name = n; this.id = id; this.position = p; } public string name; public string id; public string position; } and also assume that you use XmlSerializer to serialize an instance, as...
SHFileOperation lets you delete many files at once; you must concatenate your file names one after another with an empty string (two NULLs) at the end. Fortunately, CRecycleFile performs this dull chore so you don't have to. CRecycleFile makes recycling a piece o' cake!
Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel Are CDate() and Convert.ToDateTime same in VB.NET? Argument 'Length' must be greater or equal to zero. Array of labels Arrays - Finding Highest and Lowest Values in an array asenumerable is not a member of system...
(Of String)) _ As Boolean For Each argument As String In commandLineArgs If (argument.Contains("/splashtimeout")) Then m_splashTimeout = Integer.Parse( _ argument.Split(":")(1)) * 1000 End If m_timerThread = New Thread(AddressOf RunTimer) m_timerThread.IsBa...
.8-dmr Microsoft.EntityFrameworkCore.Tools version 1.1.1 Try scaffold the database Scaffold-DbContext "server=localhost;port=3316;database=caltic;user=xxxx;password=xxxx;sslMode=none" MySql.Data.EntityFrameworkCore -OutputDir caltic -f Gets an error The string argument 'sql' cannot be empty....
colon (:). Named parameters in a query are bound to an argument by thejavax.persistence.Query.setParameter(String name, Object value)method. In the following example, thenameargument to thefindWithNamebusiness method is bound to the:custNamenamed parameter in the query by callingQuery....