更新时间:2023-12-04 08:50:10
您所有insertCmd.Parameters.Add
语句中的参数名称都必须与名称匹配.例如,在您的SQL语句中,您的值由@EeID
,@DdID
等指定.在参数中,您省略了"@"字符.这些参数名称不匹配,因此会出现此错误.更改参数语句的名称"以匹配您在SQL语句中使用的名称.
Your parameter names in all of yourinsertCmd.Parameters.Add
statements must match the names. For example, in you''re SQL statement, your values are specified by@EeID
,@DdID
, and so on... In your Parameters, you''re leaving out the "@" character. Those parameter names don''t match, so you''ll get this error. Change the Parameter statements "names" to match what you have in the SQL statements.
请参阅下面设置了参数的代码修改.
See modification of your code below where the parameters are set.
' Ddataset is defined at start of Sub Button1_Click()
Dim strKDisctBridge As String = "SELECT * FROM KDisctBridge WHERE EeID=? "
Dim tblKDisctBridge As New SqlCommand(strKDisctBridge, Ddataset)
Dim sqlInsert As String = "INSERT INTO KDistrictBridge " & _
"(EeID,DdID,District,CcID,DisctSet) VALUES " & _
"(@EeID,@DdID,@District,@CcID,@DisctSet)"
Try
' make the data adapter
Dim da As New SqlDataAdapter
da.SelectCommand = New SqlCommand(strKDisctBridge, Ddataset)
' make and fill the KDisctBridge dataset
Dim ds As New DataSet
da.Fill(ds, "KDisctBridge")
' get the datatable out of the Ddataset list of tables
Dim dt As DataTable = ds.Tables("KDisctBridge")
' add a row to the table
Dim newrow As DataRow = dt.NewRow
newrow("EeID") = 1
newrow("DdID") = 2
newrow("District") = "Able"
newrow("CcID") = 3
newrow("DisctSet") = "Baker"
dt.Rows.Add(newrow)
' insert the new row
' create the command
Dim insertCmd As New SqlCommand(sqlInsert, Ddataset)
insertCmd.Parameters.Add("@EeID",SqlDbType.Int).Value=1
insertCmd.Parameters.Add("@DdID",SqlDbType.Int).Value=2
insertCmd.Parameters.Add("@CcID",SqlDbType.Int).Value=3
insertCmd.Parameters.Add("@District",SqlDbType.Char).Value="Able"
insertCmd.Parameters.Add("@DisctSet",SqlDbType.Char).Value="Baker"
da.InsertCommand = insertCmd
da.Update(ds, "KDisctBridge")
Catch ex As SqlException
MsgBox("error at catch" & ex.ToString())
Console.WriteLine("Error: " & ex.ToString())
Finally
Ddataset.Close()
End Try
End Using
End Sub