c# - 并非所有代码路径都会在 Web 方法上返回值错误

Question

我有一个网络方法函数检查数据库中是否存在名称，但我收到错误:

Error 114 'lookups_Creditor.CheckIfNameExists(string)': not all code paths return a value

这是网络方法:

[WebMethod]
    public static bool CheckIfNameExists(string Name)//error on this line
    {
        try
        {
           Creditor.CheckIfNameCreditorExists(Company.Current.CompanyID, Name);

        }
        catch (Exception ex)
        {

        }
    }

这是sql的搜索功能:

public static string CheckIfNameCreditorExists(int CompanyID, string Name)
    {
        DataSet ds = new DataSet();
        string accNo = "";
        string sql = "proc_CheckIfACCreditorExists";

        string query = "SELECT c.* " +
            " FROM Creditor c " +
            " WHERE c.Company_ID = " + CompanyID + " AND c.Name LIKE '" + Name + "' ";


        DataTable dt = new DataTable();
        using (MySql.Data.MySqlClient.MySqlDataAdapter adapter = new MySql.Data.MySqlClient.MySqlDataAdapter(query, DataUtils.ConnectionStrings["TAT"]))
        {
            adapter.SelectCommand.CommandType = CommandType.Text;
            adapter.SelectCommand.CommandText = query;
            adapter.Fill(dt);
            if (dt.Rows.Count > 0)
            {
               accNo = Convert.ToString(dt.Rows[0]["AccoutCode"]);
            }

        }
        return accNo;
    }

我正在尝试创建一种在数据库中搜索名称的方法。如果该名称存在，则返回与该名称关联的帐户代码。我将在屏幕上显示一条消息，告诉用户该名称已存在于帐户 ABC 中。

Answer 1

[WebMethod]
public static bool CheckIfNameExists(string Name)//error on this line
{
    bool Result = false;
    try
    {
       Result = Creditor.CheckIfNameCreditorExists(Company.Current.CompanyID, Name) != "";

    }
    catch (Exception ex)
    {

    }

    return Result
}