主题：[求助]窗口中控件代码错误

Dim cmb1 As WinForm.ComboBox=e.form.Controls("Cmb_kind")

Dim cmb2 As WinForm.ComboBox= e.Form.Controls("Cmb_tongji")

Dim txt As String= cmb1.Text

Dim txt1 As String=cmb2.text

Dim dtp1 As WinForm.DateTimePicker= e.Form.Controls("DateTimePicker1")

Dim d1 As Date=dtp1.value

Dim dtp2 As WinForm.DateTimePicker= e.Form.Controls("DateTimePicker2")

Dim d2 As Date=dtp2.value

Dim sql As String

If e.Form.Controls("Rdo_dengji").checked=False And e.Form.Controls("Rdo_ruyuan").checked=False Then

    MessageBox.Show("为提高统计的准确性,请选择统计时段种类","提示",MessageBoxButtons.OK,MessageBoxIcon.warning)

    Return

End If

If d1=Nothing Then

    MessageBox.Show("为提高统计的准确性,请选择统计开始时间","提示",MessageBoxButtons.OK,MessageBoxIcon.warning)

    Return

End If

If d2=Nothing Then

    MessageBox.Show("为提高统计的准确性,请选择统计截止时间","提示",MessageBoxButtons.OK,MessageBoxIcon.warning)

    Return

End If

If txt="" Then

    MessageBox.Show("为提高统计的准确性,请选择患者种类","提示",MessageBoxButtons.OK,MessageBoxIcon.warning)

    Return

End If

If txt1="" Then

    MessageBox.Show("为提高统计的准确性,请选择统计项目","提示",MessageBoxButtons.OK,MessageBoxIcon.warning)

    Return

End If

If e.Form.Controls("Rdo_dengji").checked=True Then

    If txt="预约患者(登记时间)" Then

        sql="select * from {基本情况} where 登记日期>#d1# and 登记日期<#d2#"

    Else If txt="住院患者(登记时间)" Then

        sql="select * from {基本情况} where 情况说明='已入院' and 登记日期>#d1# and 登记日期<#d2#"

    Else If txt="推迟入院(登记时间)" Then

        sql="select * from {基本情况} where 情况说明='推迟入院' and 登记日期>#d1# and 登记日期<#d2#"

    Else If  txt="失访患者(登记时间)" Then

        sql="select * from {基本情况} where 情况说明='无法联系' and 登记日期>#d1# and 登记日期<#d2#"

    End If

End If

If e.Form.Controls("Rdo_ruyuan").checked=True Then

    If txt="入院患者(入院时间)" Then

        sql="select * from {基本情况} where 情况说明='已入院' and 预约日期>#d1# and 预约日期<#d2#"

    Else If txt="预约患者(入院时间)" Then

        sql="select * from {基本情况} where (情况说明='已入院' or 情况说明='') And 预约日期>#d1# And 预约日期<#d2#"

    End If

End If

If e.form.Controls("Cmb_tongji").Text="性别" Then

    Dim g As New GroupTableBuilder("统计表1", sql)

    g.Caption = "性别统计"

    g.Groups.AddDef("性别", "", "性别")

    g.Totals.AddDef("姓名", AggregateEnum.Count,"","病例数")

    forms("统计图形").Open

    Forms("统计图形").Controls("Table1").Table.DataSource = g.BuildDataSource()

    Dim Chart As WinForm.Chart '定义一个图表变量

    Dim Series As WinForm.ChartSeries '定义一个图系变量

    Dim t As Table = Tables("统计图形_table1") '定义一个变量t引用数据表

    Chart= e.form.Controls("Chart1") ' 引用窗口中的图表

    Chart.VisualEffect = True '加上这一行,让你的图表更漂亮

    Chart.ChartType = ChartTypeEnum.Pie '图表1类型改为Bar(条形)

    Chart.SeriesList.Clear()

    For Each r As Row In t.Rows

        Series = Chart.SeriesList.Add() '增加一个图系

        Series.Length = 1 '一个系列只能包括一个值

        Series.Text = r("性别") & "(" & r("姓名") & ")" '设置图系的标题

        Series.Y(0) = r("姓名") '指定值

    Next

    Chart.LegendVisible = True '显示图列

    Chart.LegendCompass= CompassEnum.East '图列显示在东方(右方)

End If