无效令牌'='在类、结构或接口成员声明中，无效令牌'('在类、结构或接口成员声明中

本文关键字：接口 成员 声明 令牌 结构 在类 无效 | 更新日期: 2023-09-27 17:54:50

我想返回存储在数据库中的最后一条记录，并想实例化该返回值到类ReligionCaste的成员pID，但是我有标题错误。

我的数据库功能是

public int LastEnteredRecord()
    {
        int lastId=0;
        dbConnection = new SqlConnection(connectionString);
        try    //If error in connection opening, throws it.
        {
            dbConnection.Open();
            command.Connection = dbConnection;
            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = "dbo.LastRecordEntered";

            try    //if error in query execution, throws it.
            {
                lastId= Convert.ToInt32 ( command.ExecuteScalar());
               // MessageBox.Show("Record Entered with ID:"+lastId .ToString ());
            }
            catch (SqlException ex)
            {
                MessageBox.Show(ex.Message);
            }
            dbConnection.Close();
            dbConnection.Dispose();
        }
        catch (SqlException ex)
        {
            MessageBox.Show(ex.Message);
        }
        return lastId;
    }

我想在代码

时将返回值赋给一个类
class ReligionCaste
{
    //public int religion_ID, caste_ID;
    public String religion, sect, caste, subCaste;
    public int pID;
    DatabaseHandler.DBCntrlr dbObj = new DatabaseHandler.DBCntrlr();
    pID = dbObj.LastEnteredRecord();
 }

无效令牌'='在类、结构或接口成员声明中，无效令牌'('在类、结构或接口成员声明中

您需要一个构造函数来为pId分配值，目前您的语法无效。例子:

class ReligionCaste
{
    public ReligionCaste()
    {
        pID = dbObj.LastEnteredRecord();
    }
    //public int religion_ID, caste_ID;
    public String religion, sect, caste, subCaste;
    public int pID;
    DatabaseHandler.DBCntrlr dbObj = new DatabaseHandler.DBCntrlr();
 }

class ReligionCaste
{
    //public int religion_ID, caste_ID;
    public String religion, sect, caste, subCaste;
    public int pID;
    private DatabaseHandler.DBCntrlr dbObj;
    public ReligionCaste()
    {
        dbObj = new DatabaseHandler.DBCntrlr();
        pID = dbObj.LastEnteredRecord();
    }  
 }
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