无效的约束异常未被用户代码处理

Question

我已经创建了一个测试用例调用GetChangeSetPerProjectTest，下面是这个测试用例的代码：

public void GetChangeSetPerProjectTest()
    {
        CommonPHIEditorBL_Accessor target = new CommonPHIEditorBL_Accessor();
        target.mCommonPHIEditorDS = new CommonPHIEditorDS();
        AddPHIYieldInfoREBI(target.mCommonPHIEditorDS.PHIYieldParm, 2, 2, 2, 2, 11705, 2, 2);
        AddPHIYieldInfoREBI(target.mCommonPHIEditorDS.PHIYieldParm, 2, 3, 3, 3, 11705, 3, 3); 
        target.mCommonPHIEditorDS.PHIYieldParm.Rows[1].AcceptChanges();
        target.mCommonPHIEditorDS.PHIYieldParm.Rows[1].SetModified();
        //For DATA
        AddPHIYieldDataInfoWithItemID(target.mCommonPHIEditorDS.PHIYieldParmData, 2, Convert.ToDateTime("2010-06-20 00:00:00.000"), 2, 2, 2, 2, 11705, 2);
       AddPHIYieldDataInfoWithItemID(target.mCommonPHIEditorDS.PHIYieldParmData, 3, Convert.ToDateTime("2010-06-20 00:00:00.000"), 3, 3, 3, 3, 11705, 2); //error happened at here
        //For Comment Data
        EUPHModelDS.MetricModelCommentDTDataTable newDt = new EUPHModelDS.MetricModelCommentDTDataTable();
        AddEUPHModelDSDataSet(newDt, "MetricModelCommentDT", 2, 2, 2);
        AddEUPHModelDSDataSet(newDt, "MetricModelCommentDT", 4, 2, 2);
        AddEUPHModelDSDataSet(newDt, "MetricModelCommentDT", 3, 3, 3);
        target.mCommonPHIEditorDS.Tables.Add(newDt);

        int projectID = 2; // TODO: Initialize to an appropriate value
        int expected; // TODO: Initialize to an appropriate value
        expected = target.mCommonPHIEditorDS.PHIYieldParm.Rows.Count;
        CommonPHIEditorDS actual;
        actual = target.GetChangeSetPerProject(projectID);
        Assert.AreEqual(expected, actual.PHIYieldParm.Rows.Count);
        Assert.AreEqual(2, actual.PHIYieldParmData.Rows.Count);
        Assert.AreEqual(1, actual.Tables["MetricModelCommentDT"].Rows.Count);
        //Assert.Inconclusive("Verify the correctness of this test method.");
    }

但是，当我查看第二个数据时出现错误：

  

AddPHIYieldDataInfoWithItemID（target.mCommonPHIEditorDS.PHIYieldParmData，3，Convert.ToDateTime（“2010-06-20 00：00：00.000”），3,3,3,3,11705,2）;

在AddPHIYieldDataInfoWithItemID：

中

private void AddPHIYieldDataInfoWithItemID(CommonPHIEditorDS.PHIYieldParmDataDataTable dt, int dataID, DateTime dateKey, int metricID, int inputID, int metricModelInputID, int horizonID, int ItemID, int MetricModelID)
    {
        CommonPHIEditorDS.PHIYieldParmDataRow newRow = dt.NewPHIYieldParmDataRow();
        newRow.DataID = dataID;
        newRow.DateKey = dateKey;
        newRow.InputID = inputID;
        newRow.MetricModelInputID = metricModelInputID;
        newRow.ItemID = ItemID;
        newRow.HrzDisplay = "Current Quater";
        newRow.HorizonID = horizonID;
        newRow.Value = 20.7;
        newRow.MetricID = metricID;
        newRow.MetricModelID = 2;
        dt.Rows.Add(newRow);
    }

我可以成功浏览第一个数据，但在第二个数据中得到错误说：

  

ForeignKeyConstraint FK_PHIYieldParm_PHIYieldParmData要求子键值（3,3,3,2,11705）存在于父表中。