绑定的数据网格视图中的主键显示负数

Question

我有一个datagridview绑定到sqlserver 2012数据库中的表。 所有字段都正确显示，期望主键字段显示为负数。

是什么原因造成的？

<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Data.Design.TypedDataSetGenerator", "4.0.0.0")>  _
    Private Sub InitCommandCollection()
        Me._commandCollection = New Global.System.Data.SqlClient.SqlCommand(1) {}
        Me._commandCollection(0) = New Global.System.Data.SqlClient.SqlCommand()
        Me._commandCollection(0).Connection = Me.Connection
        Me._commandCollection(0).CommandText = "SELECT TSId, TCId, ElementNo, MSECId, UseInd, ElementDepth, ElementName, ChildInd"& _ 
            ", ElementValueDef, ElementValueNew, ElementPath, ElementPathFull, ElementValuePr"& _ 
            "efix, ElementValueLength, ElementValueIncrement, UpperControlElement1, UpperCont"& _ 
            "rolElementValue1, UpperControlElement2, UpperControlElementValue2, LowerControlE"& _ 
            "lement1, LowerControlElementValue1, LowerControlElement2, LowerControlElementVal"& _ 
            "ue2, AttributeName1, AttributeValue1, AttributeName2, AttributeValue2, Attribute"& _ 
            "Name3, AttributeValue3, AttributeName4, AttributeValue4, AttributeName5, Attribu"& _ 
            "teValue5 FROM dbo.XML_TEST_SET"
        Me._commandCollection(0).CommandType = Global.System.Data.CommandType.Text
        Me._commandCollection(1) = New Global.System.Data.SqlClient.SqlCommand()
        Me._commandCollection(1).Connection = Me.Connection
        Me._commandCollection(1).CommandText = "dbo.SP_XML_TEST_SET_FillByComboBoxes"
        Me._commandCollection(1).CommandType = Global.System.Data.CommandType.StoredProcedure
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@RETURN_VALUE", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.ReturnValue, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyENVId", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyUId", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyMTId", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyTestSetName", Global.System.Data.SqlDbType.NVarChar, 2147483647, Global.System.Data.ParameterDirection.Input, 0, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyTestCaseName", Global.System.Data.SqlDbType.NVarChar, 2147483647, Global.System.Data.ParameterDirection.Input, 0, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyInterchangeSeqNo", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyInstructionSeqNo", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyTransactionSeqNo", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyElementValueDef", Global.System.Data.SqlDbType.NVarChar, 2147483647, Global.System.Data.ParameterDirection.Input, 0, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyElementPathFull", Global.System.Data.SqlDbType.NVarChar, 2147483647, Global.System.Data.ParameterDirection.Input, 0, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
        Me._commandCollection(1).Parameters.Add(New Global.System.Data.SqlClient.SqlParameter("@MyFetchRows", Global.System.Data.SqlDbType.Int, 4, Global.System.Data.ParameterDirection.Input, 10, 0, Nothing, Global.System.Data.DataRowVersion.Current, false, Nothing, "", "", ""))
    End Sub

存储过程：

    USE [UToolDb]

[SP_XML_TEST_SET_FillByComboBoxes]-在此处添加存储过程的参数@MyENVId AS INT，@ MyUId AS INT，@ MyMTId AS INT，@ MyTestSetName AS NVARCHAR（MAX） ，@MyTestCaseName AS NVARCHAR（MAX），@MyInterchangeSeqNo AS INT，@MyInstructionSeqNo AS INT，@MyTransactionSeqNo AS INT，@MyElementValueDef AS NVARCHAR（MAX），@MyElementPathFull AS NVARCHAR（MAX），@MyFetchRows AS INT

AS BEGIN-添加SET NOCOUNT ON以防止多余的结果集干扰SELECT语句。 开启NOCOUNT；

SET ROWCOUNT @MyFetchRows

DECLARE @sql NVARCHAR(MAX) = N'
SELECT     
TS.TCId,
TS.ElementNo,
TS.MSECId,
TS.UseInd,
TS.ElementDepth,
TS.ElementName,
TS.ChildInd,
TS.ElementValueDef,
TS.ElementValueNew,
TS.ElementPath,
TS.ElementPathFull,
TS.ElementValuePrefix,
TS.ElementValueLength,
TS.ElementValueIncrement,
TS.UpperControlElement1,
TS.UpperControlElementValue1,
TS.UpperControlElement2,
TS.UpperControlElementValue2,
TS.LowerControlElement1,
TS.LowerControlElementValue1,
TS.LowerControlElement2,
TS.LowerControlElementValue2,
TS.AttributeName1,
TS.AttributeValue1,
TS.AttributeName2,
TS.AttributeValue2,
TS.AttributeName3,
TS.AttributeValue3,
TS.AttributeName4,
TS.AttributeValue4,
TS.AttributeName5,
TS.AttributeValue5
FROM dbo.XML_TEST_SET TS 
LEFT JOIN dbo.XML_TEST_SET_OVERVIEW TSO 
ON TSO.TCId = TS.TCId '     
+ CASE WHEN (@MyENVId IS NOT NULL) THEN N'WHERE TSO.ENVId = @MyENVId ' ELSE 'WHERE TSO.ENVId IS NOT NULL '  END
+ CASE WHEN (@MyUId IS NOT NULL) THEN N'AND TSO.UId = @MyUId ' ELSE '' END
+ CASE WHEN (@MyMTId IS NOT NULL) THEN N'AND TSO.MTId = @MyMTId ' ELSE '' END
+ CASE WHEN (@MyTestSetName IS NOT NULL) THEN N'AND TSO.TestSetName = @MyTestSetName ' ELSE '' END 
+ CASE WHEN (@MyTestCaseName IS NOT NULL) THEN N'AND TSO.TestCaseName = @MyTestCaseName ' ELSE '' END 
+ CASE WHEN (@MyInterchangeSeqNo IS NOT NULL) THEN N'AND TSO.TestCaseName = @MyTestCaseName ' ELSE '' END 
+ CASE WHEN (@MyInstructionSeqNo IS NOT NULL) THEN N'AND TSO.TestCaseName = @MyTestCaseName ' ELSE '' END 
+ CASE WHEN (@MyTransactionSeqNo IS NOT NULL) THEN N'AND TSO.TransactionSeqNo = @MyTransactionSeqNo ' ELSE '' END
+ CASE WHEN (@MyElementValueDef IS NOT NULL) THEN N'AND TS.ElementValueDef = @MyElementValueDef ' ELSE '' END 
+ CASE WHEN (@MyElementPathFull IS NOT NULL) THEN N'AND TS.ElementPathFull = @MyElementPathFull ' ELSE '' END
+ N'ORDER BY TSO.TestSetName, TSO.TestCaseName, TS.ElementNo, TSO.InterchangeSeqNo, TSO.InstructionSeqNo, TSO.TransactionSeqNo;';

EXEC sp_executesql @sql，N'@MyENVId INT，@MyUId INT，@MyMTId INT，@MyTestSetName NVARCHAR（MAX），@MyTestCaseName NVARCHAR（MAX），@MyInterchangeSeqNo SMALLINT，@MyInstructionSeqNo SMALLINT，@MyTransactionSeqNo SMALLINT，@MyElementValueDef ），@ MyElementPathFull NVARCHAR（MAX），@ MyENVId，@ MyUId，@ MyMTId，@ MyTestSetName，@ MyTestCaseName，@ MyInterchangeSeqNo，@ MyInstructionSeqNo，@ MyTransactioNSeqNo，@ MyElementValueDef，@ MyElementPathFull; 结束

Answer 1

如果您使用向导生成数据集，它将自动将自动增量设置为-1，因为它无法知道数据库中有哪些数据，因此不知道将哪个数字用作自动增量。情况-1是最好的解决方案。

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