c# - ObjectDataSource'VacancyObjectDataSource'は、パラメーターVacancyID、Language、Statusを持つ非ジェネリックメソッド'GetVacancy'を見つけることができませんでした

Question

私はこのようなobjectdatasourceを持っています：

 <asp:ObjectDataSource ID="VacancyObjectDataSource" runat="server" SelectMethod="GetVacancy" 
        TypeName="HRcomgeWebApp.DataLayer.DataSets.MainDataSetTableAdapters.ViewVacancyTableAdapter" OnSelecting="VacancyObjectDataSource_Selecting" OnSelected="VacancyObjectDataSource_Selected">
        <SelectParameters> 
            <asp:Parameter Name="VacancyID" Type="Int32" />
            <asp:Parameter Name="Language" Type="Int32" />
            <asp:Parameter Name="Status" Type="Int32" />
        </SelectParameters>
    </asp:ObjectDataSource>

そしてこのようなフォームビュー：

<asp:FormView ID="VacancyFormView" runat="server" DataKeyNames="VacancyID" DataSourceID="VacancyObjectDataSource"
        CellPadding="0" CellSpacing="0" GridLines="None" BorderStyle="NotSet" width="100%">

..

私のxsdコードは次のようなものです：

[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        [global::System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]


[global::System.ComponentModel.DataObjectMethodAttribute(global::System.ComponentModel.DataObjectMethodType.Select, true)]
    public virtual MainDataSet.VacancyDataTable GetVacancy(global::System.Nullable<int> VacancyID) {
        this.Adapter.SelectCommand = this.CommandCollection[0];
        if ((VacancyID.HasValue == true)) {
            this.Adapter.SelectCommand.Parameters[1].Value = ((int)(VacancyID.Value));
        }
        else {
            this.Adapter.SelectCommand.Parameters[1].Value = global::System.DBNull.Value;
        }
        MainDataSet.VacancyDataTable dataTable = new MainDataSet.VacancyDataTable();
        this.Adapter.Fill(dataTable);
        return dataTable;
    }
and this one

[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]


    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")]
        private void InitCommandCollection() {
            this._commandCollection = new global::System.Data.SqlClient.SqlCommand[1];
            this._commandCollection[0] = new global::System.Data.SqlClient.SqlCommand();
            this._commandCollection[0].Connection = this.Connection;
            this._commandCollection[0].CommandText = "dbo.hr_GetVacancy";
            this._commandCollection[0].CommandType = global::System.Data.CommandType.StoredProcedure;
            this._commandCollection[0].Parameters.Add(new global::System.Data.SqlClient.SqlParameter("@RETURN_VALUE", global::System.Data.SqlDbType.Int, 4, global::System.Data.ParameterDirection.ReturnValue, 10, 0, null, global::System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._commandCollection[0].Parameters.Add(new global::System.Data.SqlClient.SqlParameter("@VacancyID", global::System.Data.SqlDbType.Int, 4, global::System.Data.ParameterDirection.Input, 10, 0, null, global::System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._commandCollection[0].Parameters.Add(new global::System.Data.SqlClient.SqlParameter("@Language", global::System.Data.SqlDbType.Int, 4, global::System.Data.ParameterDirection.Input, 10, 0, null, global::System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._commandCollection[0].Parameters.Add(new global::System.Data.SqlClient.SqlParameter("@Status", global::System.Data.SqlDbType.Int, 4, global::System.Data.ParameterDirection.Input, 10, 0, null, global::System.Data.DataRowVersion.Current, false, null, "", "", ""));
            this._commandCollection[0].Parameters.Add(new global::System.Data.SqlClient.SqlParameter("@ShowOld", global::System.Data.SqlDbType.Bit, 1, global::System.Data.ParameterDirection.Input, 1, 0, null, global::System.Data.DataRowVersion.Current, false, null, "", "", ""));
        }

しかし、私はこのエラーが発生しています

ObjectDataSource 'VacancyObjectDataSource' could not find a non-generic method 'GetVacancy' that has parameters: VacancyID, Language, Status.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.InvalidOperationException: ObjectDataSource 'VacancyObjectDataSource' could not find a non-generic method 'GetVacancy' that has parameters: VacancyID, Language, Status.