Asp.net 在自动索引主键中插入查询
我有一个名为WorkPerUser的表,其中包含以下列:Asp.net 在自动索引主键中插入查询,asp.net,sql,vb.net,Asp.net,Sql,Vb.net,我有一个名为WorkPerUser的表,其中包含以下列: id int username nchar(50) RMANumber int Charge real “id”是自动递增为1的主键 我的代码是: Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSubmit.Click 'Dim temp_id As String
id int
username nchar(50)
RMANumber int
Charge real
“id”是自动递增为1的主键
我的代码是:
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSubmit.Click
'Dim temp_id As String
'temp_id = Session("se_userid")
'SQL connection String and Query
Dim connectionString As String = ConfigurationManager.ConnectionStrings("ConnectionString").ConnectionString
Dim insertSql As String = "INSERT INTO [WorkPerUser] (id,username,RMANumber,Charge)" & " values (@id,@username,@rmanumber,@charge)"
'Create SQL connection
Dim con As New SqlConnection(connectionString)
'Create SQl command and parameters
Dim cmd As New SqlCommand()
cmd.Connection = con
cmd.CommandType = CommandType.Text
cmd.CommandText = insertSql
Dim id As New SqlParameter("@id", SqlDbType.Text)
id.Value =
cmd.Parameters.Add(id)
Dim username As New SqlParameter("@username", SqlDbType.NChar)
username.Value = Session("userName")
cmd.Parameters.Add(username)
Dim rmanumber As New SqlParameter("@rmanumber", SqlDbType.Int)
rmanumber.Value = txtRMA.Text.ToString()
cmd.Parameters.Add(rmanumber)
Dim charge As New SqlParameter("@charge", SqlDbType.Real)
charge.Value = txtCharge.Text.ToString()
cmd.Parameters.Add(charge)
Try
con.Open()
cmd.ExecuteNonQuery()
lblMsg.Text = "Job Inserted"
Catch ex As SqlException
Dim errorMessage As String = "Error registering job"
errorMessage += ex.Message
Throw New Exception(errorMessage)
Finally
con.Close()
End Try
End Sub
您可能已经注意到,我将
id.Value=
留空,因为我不知道要向数据库发送什么。是否需要在查询或其他地方更改任何内容?如果Id确实是一个自动增量(标识)列,则无需手动插入。只需省略Id部分
Dim insertSql As String = "INSERT INTO [WorkPerUser] (username,RMANumber,Charge)" & " values (@username,@rmanumber,@charge)"
您不必指定id。您可能希望获取插入的最后一个id。通常是通过selectscope\u IDENTITY()
实现的,这对于内联SQL来说很棘手
检查以下链接:
temp\u id=Membership.GetUser().ProviderUserKey.ToString()
。如果是其他内容,请告诉我我正在尝试将asp.net生成的实际用户id插入id列。当我检查标签上的输出时,它是正常的,但是当我在数据库中发送它时,34个字符的guid只有零。(我已经检索到用户ID并将其存储在会话中)