-- 作者:blackzhu
-- 发布时间:2010/11/24 15:06:00
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Dim xn2 As WinForm.TextBox = e.Form.Controls("TextBox2") Dim xq As WinForm.ComboBox = e.Form.Controls("ComboBox2") Dim ksmc As WinForm.TextBox = e.Form.Controls("TextBoxKSMC") If xn2.value<>"" And xq.value<>"" And ksmc.value<>"" Then Dim Result As DialogResult result=MessageBox.Show("考试信息正确吗?","提示",MessageBoxButtons.YesNo, MessageBoxIcon.Question) If Result = DialogResult.Yes Then Dim xn As String Dim dr_xn,dr_xq,dr_ksmc As DataRow xn=e.Form.Controls("ComboBox1").Value & "-" & xn2.Value &"学年" With DataTables("考试") dr_xn = .Find("学年 =\'" & xn & "\'") \'检查相同学年 dr_xq = .Find( "学期 =\'" & xq.value & "\'") \'检查相同学期 dr_ksmc = .Find("考试名称 =\'" & ksmc.value & "\'") End With If dr_ksmc Is Nothing Then MessageBox.Show("sdfas") Dim f As New Filler f.SourceTable = DataTables("信息") \'指定数据来源 f.SourceCols = "id" \'指定数据来源列 f.DataTable = DataTables("考试") \'指定数据接收表 \'f.ExcludeExistValue=True \'f.DataCols = "产品,客户" \'指定数据接收列 f.Fill() \'填充数 For Each r As Row In Tables("考试").Rows r("学年")= xn r("学期")= xq.value r("考试名称") = ksmc.value Next Else MessageBox.Show("本次考试信息已经存在!") e.Cancel=True End If End If Else MessageBox.Show("考试信息不能为空!") End If
你的代码我测试可以用呀.我加个了取消按钮
MessageBox.Show("本次考试信息已经存在!") e.Cancel=True
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-- 作者:bohe
-- 发布时间:2010/11/24 15:53:00
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用find方法没有成功,考虑到以后要用外部数据源把中间部分改了一下,测试通过
Dim xn,dr_ksmc As String xn=e.Form.Controls("ComboBox1").Value & "-" & xn2.Value &"学年" Dim cmd As New SQLCommand cmd.CommandText = "Select 考试名称 From {考试} Where 学年 = \'" & xn & "\'" & "And 学期 = \'" & xq.value & "\'" & "And 考试名称 = \'" & ksmc.value & "\'" dr_ksmc = cmd.ExecuteScalar() If dr_ksmc = "" Then Dim f As New Filler
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