CS0023: Operator '.' cannot be applied to operand of type 'void' CS0029: Cannot implicitly convert type 'string' to 'System.Web.UI.WebControls.DropDownList' CS0103: The name 'Helper' does not exist in the current context CS0104: 'Image' is an ambiguous reference between 'System.W...
这样又引发了语法错误。 Severity Code Description Project File Line Suppression State Error CS0019 Operator'||'cannot be applied to operands of type'bool?'and'bool?' 解决方案 if((btn1.Tag?.ToString().StartsWith("Menu") ??false) || (btn2.Tag?.ToString().StartsWith("Submenu") ??false))...
/* why I am getting this type of error.How to resolve this ? cs(28,27):error CS0019 : operator '-' cannot be applied to operands of type 'string' or 'int'*/ using System; using System.Collections.Generic; using System.Linq; using System.Text; using ...
Error - Operator '==' cannot be applied to operands of type string and char Error - The conversion of a nvarchar data type to a datetime data type resulted in an out-of-range value. Error - The remote name could not be resolved:https Error - The string was not recognized as a valid...
@文心快码operator '==' cannot be applied to operands of type 'system.text.json.jsonel 文心快码 在C#中,== 运算符不能直接应用于 System.Text.Json.JsonElement 类型。 System.Text.Json.JsonElement 是一个表示 JSON 数据的单个元素的结构体,它可以表示 JSON 对象、数组或值(如字符串、数字、布尔值等...
编译器错误信息: CS0019: Operator '==' cannot be applied to operands of type 'int' and 'System...
("what is your Name?"); yourName = Console.ReadLine(); if ( yourAge >= 18) { Console.WriteLine("you are eligible"); } yourAge = Console.ReadLine(); else { Console.WriteLine("sorry"); } but it is coming as; C# Operator '>=' cannot be applied to ope...
Binary operator '==' cannot be applied to operands of type 'Int' and 'Bool' Developer Tools & Services Xcode Xcode robertmorrissey Created Mar ’22 Replies 1 Boosts 0 Views 1.2k Participants 2 Greetings. I am learning to program in Swift, working through the Develop in Swift ...
Im trying to have an if statement to check if a double value in a string is larger than 10 but i keen on getting an error "Binary operator '>' cannot be...
Binary operator '==' cannot be applied to operands of type 'TP_Model_Employees.Res.Data.Record.CodingKeys' and 'Int?' Explain what you want by example or codein English. I want select records whether TP_Model_Employees.Res.Data.Record.Properties.deptid is nil or not ...