frmroominfo.vb

vb.net+SQL开发工具 是一个很好的管理系统的源码

        CType(Me.DataSet11, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region
    Public Overrides Sub Prepare()
        Me.Text = "客房信息设置"
        Me.Label1.Text = "客房编号"
        Me.Label2.Text = "类型编号"
        Me.Label3.Text = "楼层编号"
        Dim db As DataBase = New DataBase
        Dim dv As DataView = _
        db.RunSelectSQL("select 类型编号,类型名称 from 客房类型")
        Me.cbbTypeCode.DataSource = dv
        Me.cbbTypeCode.DisplayMember = "类型名称"
        Me.cbbTypeCode.ValueMember = "类型编号"
        dv = db.RunSelectSQL("select 楼层编号,楼层名称 from 楼层信息")
        Me.cbbFloorCode.DataSource = dv
        Me.cbbFloorCode.DisplayMember = "楼层名称"
        Me.cbbFloorCode.ValueMember = "楼层编号"
        db.Dispose()
    End Sub
    Public Overrides Sub LoadData()
        Dim strFilter As String
        If txbOne.Text.Trim.Length = 0 Then
            If txbTwo.Text.Trim.Length = 0 Then
                If txbThree.Text.Trim.Length = 0 Then
                    strFilter = ""
                Else
                    strFilter = "where 楼层编号 like '"
                    strFilter += txbThree.Text.Trim + "%'"
                End If
            Else
                strFilter = "where 类型编号 like '"
                strFilter += txbTwo.Text.Trim + "%'"
                If txbThree.Text.Trim.Length <> 0 Then
                    strFilter += " and 楼层编号 like '"
                    strFilter += txbThree.Text.Trim + "%'"
                End If
            End If
        Else
            strFilter = "where 客房编号 like '"
            strFilter += txbOne.Text.Trim + "%'"
            If txbTwo.Text.Trim.Length <> 0 Then
                strFilter += " and 类型编号 like '"
                strFilter += txbTwo.Text.Trim + "%'"
                If txbThree.Text.Trim.Length <> 0 Then
                    strFilter += " and 楼层编号 like '"
                    strFilter += txbThree.Text.Trim + "%'"
                End If
            Else
                If txbThree.Text.Trim.Length <> 0 Then
                    strFilter += " and 楼层编号 like '"
                    strFilter += txbThree.Text.Trim + "%'"
                End If
            End If
        End If
        '清空DataSet11
        DataSet11.Clear()
        SqlConnection1.ConnectionString = DataBase.sConn
        Dim strSQL As String
        SqlDataAdapter1.SelectCommand.CommandText _
        = "select * from 客房信息 " + strFilter
        '根据查询条件重新填充DataSet11
        SqlDataAdapter1.Fill(DataSet11)
        dtData = DataSet11.Tables("客房信息")
        bmData = Me.BindingContext(DataSet11, "客房信息")
        If bmData.Count <> 0 Then
            bmData.Position = 0
        End If
    End Sub
    Public Overrides Sub SetDataGrid()
        LoadData()
        '定义一个DataGrid表样式
        Dim ts As New DataGridTableStyle
        Dim aColumnTextColumn As DataGridTextBoxColumn
        Dim numCols As Integer = dtData.Columns.Count
        Dim i As Integer
        For i = 0 To numCols - 1
            aColumnTextColumn = New DataGridTextBoxColumn
            aColumnTextColumn.MappingName = _
            dtData.Columns(i).ColumnName
            aColumnTextColumn.HeaderText = _
            dtData.Columns(i).ColumnName
            aColumnTextColumn.NullText = ""
            aColumnTextColumn.ReadOnly = True
            ts.GridColumnStyles.Add(aColumnTextColumn)
        Next
        ts.AlternatingBackColor = Color.LightGray
        ts.AllowSorting = False
        ts.MappingName = dtData.TableName
        dgdList.TableStyles.Clear()
        dgdList.TableStyles.Add(ts)
        Dim dv As DataView = dtData.DefaultView
        dv.AllowNew = False
        dv.AllowDelete = False
        'dv.AllowEdit = False
        '设置数据源
        dgdList.DataSource = dtData.DefaultView
        bmData = Me.BindingContext(DataSet11, "客房信息")
        lblCount.Text = "记录数:" + dtData.Rows.Count.ToString()
    End Sub
    Public Overrides Sub SetTextBoxState(ByVal bState As Boolean)
        Me.GroupBox1.Enabled = Not bState
    End Sub
    Public Overrides Sub Clear()
        Me.txbRoomCode.Text = ""
        Me.cbbTypeCode.Text = ""
        Me.cbbFloorCode.Text = ""
        Me.txbRemark.Text = ""
        Me.txbState.Text = "空房"
        Me.txbState.ReadOnly = True
        Me.txbNumber.Text = ""
        Me.txbDescribe.Text = ""
        Me.txbBed.Text = ""
        Me.ckbPin.Checked = True
    End Sub
    Public Overrides Sub SaveForAdd()
        Dim dr As DataRow = DataSet11.Tables("客房信息").NewRow()
        Try
            dr("客房编号") = txbRoomCode.Text.Trim
            dr("类型编号") = cbbTypeCode.SelectedValue.ToString.Trim
            dr("楼层编号") = cbbFloorCode.SelectedValue.ToString.Trim
            dr("额定人数") = txbNumber.Text.Trim
            dr("床数") = txbBed.Text.Trim
            dr("客房描述") = txbDescribe.Text.Trim
            dr("状态") = txbState.Text.Trim
            dr("备注") = txbRemark.Text.Trim
            dr("是否可拼房") = ckbPin.Checked
        Catch ex As Exception
            MessageBox.Show("数据格式不正确！")
            Exit Sub
        End Try
        Try
            DataSet11.Tables("客房信息").Rows.Add(dr)
            If Me.DataSet11.HasChanges = True Then
                SqlDataAdapter1.Update(DataSet11)
            End If
        Catch ex As Exception
            MessageBox.Show("数据添加失败!")
        End Try
        LoadData()
        dgdList.DataSource = dtData.DefaultView
    End Sub
    Public Overrides Sub DeleteData()
        Try
            '删除当前行的数据
            DataSet11.Tables("客房信息"). _
            Rows(bmData.Position).Delete()
            If Me.DataSet11.HasChanges = True Then
                '更新DataSet11
                SqlDataAdapter1.Update(DataSet11)
            End If
        Catch ex As Exception
            MessageBox.Show("数据删除失败!")
        End Try
    End Sub
    Public Overrides Sub SaveForUpdate()
        Try
            Dim row As Integer
            row = dgdList.CurrentCell.RowNumber
            dgdList.CurrentCell = _
            New DataGridCell((row + 1) Mod bmData.Count, 0)
            '判断是否有更新的数据
            If Me.DataSet11.HasChanges = True Then
                SqlDataAdapter1.Update(DataSet11)
            End If
        Catch ex As Exception
            MessageBox.Show("数据修改失败!")
        End Try
    End Sub

End Class