如何在我的代码中放置陷阱而不是保存现有的活动名称 [英] how to put trappings in my code not to save an existing activityname

问题描述

If ValidateData() = False Then
          Exit Sub
      End If
      If UpdateData() Then
          If MyMode = "Add" Then

              MsgBox("New Activity Added Successfully !", CType(vbInformation + vbOKOnly, MsgBoxStyle), "Update Status")
              PopulateList()
              ClearMyCtls()
              txtStudentID.Text = GetNextPrimaryKey(con, "Activity", "Activity_ID").ToString("######000")
              txtStudentID.Focus()

              Exit Sub
          End If

推荐答案

如评论中所述，我建议您在验证方法期间调用您的数据库，以确定该记录是否存在。然后从那里处理。

As mentioned in comments, I suggest you call into your db during your Validate method to determine if the record exists or not. Then handle from there.

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