addgroup.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 addgroup
    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 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

            Dim dbcommand As SqlDataAdapter
            Dim ds As DataSet = New DataSet

            dbcommand = New SqlDataAdapter("select dep_id  from   sci_dep  ", 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

        sql = "select * from sci_group where group_id='" + group_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 group_id.Value = "" Then
            Response.Write("<script>alert('请输入项目组id！ ');</script>")
        ElseIf (group_name.Value = "" Or DropDownList1.SelectedValue = 0) 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('该项目组已存在！');</script>")
        Else

            sql = "insert into sci_group(group_id,group_name,dep_id)values('" + group_id.Value + "',  '" + group_name.Value + "', '" + DropDownList1.SelectedValue + "') "

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

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


            group_name.Value = ""

            DropDownList1.SelectedValue = 0

        End If


    End Sub


    Private Sub reset_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Reset.ServerClick

    End Sub

    Private Sub Button1_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.ServerClick
        Response.Redirect("groupinfor.aspx")
    End Sub



    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('该项目组已存在！');</script>")
        Else
            Response.Write("<script>alert('不存在该项目组,请继续添加！');</script>")
        End If
    End Sub

    Private Sub level_ServerChange(ByVal sender As System.Object, ByVal e As System.EventArgs)

    End Sub
End Class