userlist.aspx.vb

图书借阅系统！ASP.NET实现的

Public Class UserList
    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 ExpandBtn As System.Web.UI.WebControls.ImageButton
    Protected WithEvents txtUserID As System.Web.UI.WebControls.TextBox
    Protected WithEvents txtUserName As System.Web.UI.WebControls.TextBox
    Protected WithEvents DpSex As System.Web.UI.WebControls.DropDownList
    Protected WithEvents txtUnit As System.Web.UI.WebControls.TextBox
    Protected WithEvents DpRoleID As System.Web.UI.WebControls.DropDownList
    Protected WithEvents DpState As System.Web.UI.WebControls.DropDownList
    Protected WithEvents SPanel As System.Web.UI.WebControls.Panel
    Protected WithEvents SearchBtn As System.Web.UI.WebControls.Button
    Protected WithEvents SearchGrd As System.Web.UI.WebControls.DataGrid

    '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
        If Not IsPostBack Then
            initDropdownList()
        End If
    End Sub
    Private Sub initDropdownList()
        Dim sqlstr As String = "select * from RoleInfo"
        Dim obj As DBController = New DBController
        obj.BindDrpDownList(sqlstr, DpRoleID)
        DpRoleID.Items.Insert(0, "--所有--")
        DpRoleID.SelectedIndex = 0
    End Sub
    Private Sub ExpandBtn_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ExpandBtn.Click
        If SPanel.Visible = True Then
            SPanel.Visible = False
            ExpandBtn.ImageUrl = "..\Images\Close.bmp"
        Else
            SPanel.Visible = True
            ExpandBtn.ImageUrl = "..\Images\Open.bmp"
        End If
    End Sub

    Private Sub SearchBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SearchBtn.Click
        Dim sqlstr As String = ""
        sqlstr = "select * from UserInfo,RoleInfo where UserInfo.RoleID=RoleInfo.RoleID "
        If txtUserID.Text.ToString.Trim <> "" Then
            sqlstr += " and UserID='" + txtUserID.Text.ToString.Trim + "' "
        End If

        If txtUserName.Text.ToString.Trim <> "" Then
            sqlstr += " and UserName='" + txtUserName.Text.ToString.Trim + "' "
        End If

        If DpSex.SelectedValue <> "All" Then
            sqlstr += " and Sex='" + DpSex.SelectedValue + "' "
        End If

        If txtUnit.Text.ToString.Trim <> "" Then
            sqlstr += " and Unit='" + txtUnit.Text.ToString.Trim + "' "
        End If

        If DpRoleID.SelectedValue <> "--所有--" Then
            sqlstr += " and UserInfo.RoleID=" + DpRoleID.SelectedValue
        End If

        If DpState.SelectedValue <> "All" Then
            sqlstr += " and [State]=" + DpState.SelectedValue
        End If
        Session("sqlstr") = sqlstr

        Dim obj As DBController = New DBController
        obj.BindDBGrd(sqlstr, SearchGrd)

    End Sub
    Private Sub BindDataGrid(ByVal sqlstr As String)

    End Sub

    Private Sub SearchGrd_PageIndexChanged(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridPageChangedEventArgs) Handles SearchGrd.PageIndexChanged
        Dim sqlstr As String = CType(Session("sqlstr"), String)
        SearchGrd.CurrentPageIndex = e.NewPageIndex
        Dim obj As DBController = New DBController
        obj.BindDBGrd(sqlstr, SearchGrd)
    End Sub
    Public Function MakeUrl(ByVal str As String) As String
        Return "EditUser.aspx?UserID=" + str
    End Function
End Class