fruit_declaration.aspx.vb

基于.net科研管理信息系统 毕业设计参考代码

Imports System.Data
Imports System.Data.SqlClient
Partial Class fruit_declaration
    Inherits System.Web.UI.Page

#Region " Web 窗体设计器生成的代码 "

    '该调用是 Web 窗体设计器所必需的。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub

    '注意: 以下占位符声明是 Web 窗体设计器所必需的。
    '不要删除或移动它。
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
        '不要使用代码编辑器修改它。
        InitializeComponent()
    End Sub

#End Region

    Private connectionstring As String
    Dim mycmd As SqlCommand

    Dim sql, uid As String
    Dim conn As SqlConnection
    Dim ds As DataSet = New DataSet
    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        '在此处放置初始化页的用户代码
        conn = New SqlConnection(connectionstring)
        conn.ConnectionString = "server=HP-PC;Database=SRM;uid=sa;pwd=sa;"
        conn.Open()
        If Not IsPostBack Then
            If Session("user_id") = "" Then
                Response.Redirect("login.aspx")
            Else
                uid = Session("user_id")
                Dim dbcommand As SqlDataAdapter
                sql = "select group_id from sci_group where dep_id in (select sci_group.dep_id  from sci_user,sci_group  where sci_user.group_id=sci_group.group_id and sci_user.user_id= '" + uid + " ')"
                dbcommand = New SqlDataAdapter(sql, conn)

                dbcommand.Fill(ds)

                DropDownList1.DataSource = ds.Tables(0)
                DropDownList1.DataTextField = ds.Tables(0).Columns(0).ColumnName
                DropDownList1.DataValueField = ds.Tables(0).Columns(0).ColumnName
                DropDownList1.DataBind()
                DropDownList1.Items.Insert(0, New ListItem("请选择", "0"))
            End If
        End If

        sql = "select * from sci_fruit where f_id='" + f_id.Value + "'"
        Dim da As SqlDataAdapter = New SqlDataAdapter(sql, conn)
        da.Fill(ds)
    End Sub


    Private Sub Submit1_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Submit1.ServerClick

        If f_id.Value = "" Then
            Response.Write("<script>alert('请输入成果编号！ ');</script>")
        ElseIf (f_name.Value = "" Or f_research_area.Value = "" Or f_keyword.Value = "" Or f_finish_date.Value = "" Or DropDownList1.SelectedValue = 0 Or f_abstract.Value = "") Then
            Response.Write("<script>alert('输入信息不完整！ ');</script>")
        ElseIf (ds.Tables(0).Rows.Count <> 0) Then
            Response.Write("<script>alert('该用户已存在！');</script>")
        Else

            sql = "insert into sci_fruit(f_id,f_name,f_research_area,f_keyword,f_counts,fruit_type,research_kind,f_kind,f_finish_date,f_language,f_pub_com,group_id,f_abstract,f_memo)values('" + f_id.Value + "',  '" + f_name.Value + "', '" + f_research_area.Value + "', '" + f_keyword.Value + "', '" + f_counts.Value + "', '" + fruit_type.Value + "', '" + research_kind.Value + "',  '" + f_kind.Value + "', '" + f_finish_date.Value + "',  '" + f_language.Value + "',  '" + f_pub_com.Value + "','" + DropDownList1.SelectedValue + "', '" + f_abstract.Value + "', '" + f_memo.Value + "') "

            mycmd = New SqlCommand(sql, conn)
            mycmd.ExecuteNonQuery()
            mycmd.Dispose()
            conn.Close()

            Response.Write("<script>alert('添加成功！！！');</script>")

            f_id.Value = ""
            f_name.Value = ""
            f_research_area.Value = ""
            f_keyword.Value = ""
            f_counts.Value = ""
            f_finish_date.Value = ""
            f_pub_com.Value = ""
            DropDownList1.SelectedValue = 0
            f_abstract.Value = ""
            f_memo.Value = ""
        End If


    End Sub


    Private Sub reset_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles reset.ServerClick
        f_id.Value = ""
        f_name.Value = ""
        f_research_area.Value = ""
        f_keyword.Value = ""
        f_counts.Value = ""
        f_finish_date.Value = ""
        f_pub_com.Value = ""
        DropDownList1.SelectedValue = 0
        f_abstract.Value = ""
        f_memo.Value = ""

    End Sub

    '检测成果编号是否已经存在
    Private Sub Submit2_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Submit2.ServerClick

        If (ds.Tables(0).Rows.Count <> 0) Then
            Response.Write("<script>alert('该成果编号已存在！');</script>")
        Else
            Response.Write("<script>alert('不存在该成果编号,请继续添加！');</script>")
        End If
    End Sub

End Class