为什么会出现 "no overload method takes 0 arguments" 错误?

Why do I get "no overload method takes 0 arguments" error?

我在使用以下代码时遇到 "no overload method 'getStarDropdown' takes 0 arguments" 错误。

我该如何解决这个问题?因为我是新手!

请帮忙谢谢:)

第一个 Class :

public DataTable getStarDropdown(int starID)
    {
        try
        {
            DataTable dtStar = null;
            CommonDAL obj = new CommonDAL();
            DataSet dsAll = obj.getStarEntity(starID);

            if (dsAll != null)
                dtStar = dsAll.Tables[1];
            return dtStar;
        }
        catch (Exception ex)
        {
            string msg = ex.Message;

            ExceptionLogger.WriteToLog(hostWebUrl, "CommonDAL", "getAllDropDown()", ex.Message, ex.StackTrace, ExceptionLogger.LOGTYPE.ERROR.ToString());
            return null;
        }

    }

第二个Class:

public static List<Dictionary<string, object>> GetStarData()
    {
        CommonBAL obj = new CommonBAL();
        DataTable dt = new DataTable();
        dt = obj.getStarDropdown();

        System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
        List<Dictionary<string, object>> rows = new List<Dictionary<string, object>>();
        Dictionary<string, object> row;
        foreach (DataRow dr in dt.Rows)
        {
            row = new Dictionary<string, object>();
            foreach (DataColumn col in dt.Columns)
            {
                row.Add(col.ColumnName, dr[col]);
            }
            rows.Add(row);
        }
        return rows;

    }

您的函数需要一个 int 类型的参数

/将整数值传递给函数,

 dt = obj.getStarDropdown(1);

第二个class,给dt赋值时需要整数

所以

dt = obj.getStarDropdown(PUT AN INTEGER HERE)