如何在asp.net中更新两个表

问题描述

I want to update my status from '2' to '3', but my problem is data not update in database

Sub Update()    'UPDATE RECORD

        Dim strIDK As String = Me.txtIdKaunseling.Text

        If strIDK = "" Then Exit Sub

        If strIDK <> "" Then
            '---UPDATE IN TABLE SKP01_KaunselingPL---
            sql = "UPDATE dbo.SKP01_KaunselingPL SET SKP01_Status = '3' " _
                & "WHERE SKP01_KaunselingID = '" & strIDK & "'"

            If fnExec(sql, iTran:=2) = 1 Then
                setMsg(Me, msgBoxSaved, "strKey1")
            Else
                setMsg(Me, msgBoxSaveFailed, "strKey1")
            End If

            '---UPDATE IN TABLE SKP01_KaunselingDT---
            sql = "UPDATE dbo.SKP01_KaunselingDT SET SKP01_Status = '3'" _
                & "WHERE SKP01_KaunselingID = '" & strIDK & "'"

            If fnExec(sql, iTran:=2) = 1 Then
                setMsg(Me, msgBoxSaved, "strKey1")
            Else
                setMsg(Me, msgBoxSaveFailed, "strKey1")
            End If
        End If
    End Sub

This is my btnSave HTML

<div id="menu" class="toolbar">
        <asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="~/Images/save.png" ToolTip="Save" CssClass="imgBtn" ValidationGroup="Check" Width="32" Height="32"/>
    </div>

推荐答案

If Session("strID") = "" 

如果会话（strID）是
设置为某个值，因为此行询问是否未设置strID ...



您需要先将if更改为：

if Session("strID") is set to some value because this line asks if strID is NOT set...

You need to change that first "if" to:

If Session("strID") IsNot Nothing AndAlso IsNumeric(Session("strID")) Then
' the rest of your function
End If

这会检查会话中是否存在strID并且它是一个数字（或CInt函数会引发错误）

This checks that strID exists in your session and that it is a number (or CInt function would throw an error)

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