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我用sql语句增加了后台行数据，保存后，datatable表里面的行缺没有增加是怎么回事

Dim kmbm As String = e.Form.Controls("kmbm").Value

Dim km1 As String = e.Form.Controls("km1").Value

Dim km2 As String = e.Form.Controls("km2").Value

Dim km3 As String = e.Form.Controls("km3").Value

Dim km4 As String = e.Form.Controls("km4").Value

Dim km5 As String = e.Form.Controls("km5").Value

Dim km6 As String = e.Form.Controls("km6").Value

Dim trV1 As WinForm.TreeView = Forms("会计科目设置").Controls("TreeView1")

Dim lst As WinForm.Table = Forms("会计科目设置").Controls("Table1")

Dim dt As DataTable

Dim cmd As New SQLCommand

cmd.Connectio n N ame = "cwgl"

If km2 = "" OrElse km3 = "" OrElse km4 = "" Then

Messagebox.show("支出性质一级科目,二级科目,经济分类一级科目不能为空!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)

Return

End If

cmd.CommandText = "Select Count(*) Fro m {会计科目} Where 科目编码 = '" & kmbm & "'"

If cmd.ExecuteScalar > 0 Then

Messagebox.show("增加科目失败,已经能存在相同的科目!","提示",MessageBoxButtons.OK,MessageBoxIcon.Information)

Return

End If

cmd.CommandText = "Inser t I n to {会计科目} ([科目编码],[一级科目],[二级科目],[三级科目],[四级科目],[五级科目],[六级科目]) Values ('"

cmd.CommandText = cmd.CommandText & kmbm & "','" & km1 & "','" & km2 & "','" & km3 & "','"& km4 & "','" & km5 & "','" & km6 & "')"

If cmd.ExecuteNonQuery = 1 Then '返回1表示增加成功

If Forms("会计科目设置").Opened Then

cmd.CommandText = "SELECT * Fro m {会计科目}"

dt = cmd.ExecuteReader()

Dim bd1 As New GroupTableBuilder("统计表1",dt)

bd1.Groups.AddDef("科目编码","会计科目编码")

bd1.Groups.AddDef("一级科目","功能类科目名称")

bd1.Groups.AddDef("二级科目","支出性质分类_一级科目")

bd1.Groups.AddDef("三级科目","支出性质分类_二级科目")

bd1.Groups.AddDef("四级科目","经济分类_一级科目")

bd1.Groups.AddDef("五级科目","经济分类_二级科目")

bd1.Groups.AddDef("六级科目","经济分类_三级科目")

Tables("会计科目设置_Table1").DataSource = bd1.BuildDataSource()

Tables("会计科目设置_table1").AutoSizeCols() '设置自动列宽

End If

' Dim dr As DataRow

For Each dr As DataRow In DataTables("会计科目").Select("[科目编码] = '"& lst.Table.Current("会计科目编码") &"'")

dr("一级科目") = lst.Table.Current("功能类科目名称")

dr("二级科目")= lst.Table.Current("支出性质分类_一级科目")

dr("三级科目")= lst.Table.Current("支出性质分类_二级科目")

dr("四级科目")= lst.Table.Current("经济分类_一级科目")

dr("五级科目") = lst.Table.Current("经济分类_二级科目")

dr("六级科目")= lst.Table.Current("经济分类_三级科目")

e.Form.Close()

End If

主题：增加数据表行数据的问题