t_notice_input.aspx.vb

该源代码包括了asp.net的整个实现过程

Public Class t_notice_input
    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
    Protected WithEvents Button2 As System.Web.UI.WebControls.Button
    Protected WithEvents Button1 As System.Web.UI.WebControls.Button
    Protected WithEvents TextBox3 As System.Web.UI.WebControls.TextBox
    Protected WithEvents RequiredFieldValidator1 As System.Web.UI.WebControls.RequiredFieldValidator
    Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Panel1 As System.Web.UI.WebControls.Panel
    Protected WithEvents Label1 As System.Web.UI.WebControls.Label
    Protected WithEvents Panel2 As System.Web.UI.WebControls.Panel
    Protected WithEvents HyperLink1 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink2 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents LinkButton1 As System.Web.UI.WebControls.LinkButton
    Protected WithEvents Image1 As System.Web.UI.WebControls.Image
    Protected WithEvents spWelMessage As System.Web.UI.HtmlControls.HtmlGenericControl
    Protected WithEvents RadioButton1 As System.Web.UI.WebControls.RadioButton
    Protected WithEvents RadioButton2 As System.Web.UI.WebControls.RadioButton
    Protected WithEvents RadioButton3 As System.Web.UI.WebControls.RadioButton
    Protected WithEvents TextBox2 As System.Web.UI.WebControls.TextBox
    Protected WithEvents DropDownList1 As System.Web.UI.WebControls.DropDownList
    Protected WithEvents RequiredFieldValidator2 As System.Web.UI.WebControls.RequiredFieldValidator

    '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 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
        '1、取出cookie中的数据
        Dim teacher_id As String = Request.Cookies("userInf").Values("userID")
        If DateTime.Now.Hour >= 6 And DateTime.Now.Hour < 12 Then
            spWelMessage.InnerHtml = "早上好，" & Request.Cookies("userInf").Values("userID") & Request.Cookies("userInf").Values("userIdent")
        ElseIf DateTime.Now.Hour >= 12 And DateTime.Now.Hour < 18 Then
            spWelMessage.InnerHtml = "下午好，" & Request.Cookies("userInf").Values("userID") & Request.Cookies("userInf").Values("userIdent")
        Else
            spWelMessage.InnerHtml = "晚上好，" & Request.Cookies("userInf").Values("userID") & Request.Cookies("userInf").Values("userIdent")
        End If
        '选择发布对象
        If RadioButton1.Checked = True Then
            DropDownList1.Enabled = False
            TextBox2.Enabled = False
            RequiredFieldValidator2.Enabled = False
        ElseIf RadioButton2.Checked = True Then
            DropDownList1.Enabled = True
            TextBox2.Enabled = False
            RequiredFieldValidator2.Enabled = False
        ElseIf RadioButton3.Checked = True Then
            DropDownList1.Enabled = False
            TextBox2.Enabled = True
            RequiredFieldValidator2.Enabled = True
        End If
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        '提交()
        Dim dsn As String = ConfigurationSettings.AppSettings("DSN_teacher")
        Dim conn As New SqlClient.SqlConnection
        conn.ConnectionString = dsn
        Dim cmd As New SqlClient.SqlCommand
        cmd.Connection = conn
        Dim nu_date As DateTime = DateTime.Now
        Dim n_id As String = nu_date.ToOADate.ToString
        Dim nu_student As String
        '选择发布对象
        If RadioButton1.Checked = True Then
            nu_student = "全体学生"
        ElseIf RadioButton2.Checked = True Then
            nu_student = DropDownList1.SelectedItem.Text + "班"
        ElseIf RadioButton3.Checked = True Then
            nu_student = TextBox2.Text
        End If
        cmd.CommandText = "insert into notice_infor (n_ID,n_title,nu_student,nu_date,n_content) values ('" + n_id + "','" + TextBox1.Text + "','" + nu_student + "','" + nu_date.ToString + "','" + TextBox3.Text + "')"
        Try
            conn.Open()
            cmd.ExecuteReader()
            Label1.Text = "提交成功！"
        Catch
            Label1.Text = "数据库操作失败，可能是服务器出现错误，请稍后再试！非常抱歉影响了您的工作！"
        Finally
            conn.Close()
        End Try
        Panel1.Visible = False
        Panel2.Visible = True
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        '重写
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
    End Sub

    Private Sub LinkButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LinkButton1.Click
        Response.Redirect("../login.aspx")
    End Sub
End Class