无法访问QPushButton神秘 [英] Inaccessible QPushButton mystery

问题描述

我有一个QT应用程序。它有功能QPushButtons连接到我的程序中的插槽。我现在尝试添加一个新按钮 myNewButton ，但在某处，不知何故它没有被注册。

I have a QT application. It has functioning QPushButtons that are connected to slots in my program. I am now trying to add a new button myNewButton, but somewhere, somehow it is not being registered.

一个现有的工作按钮 myExistingButton 我有以下行：

For an existing, working button myExistingButton I have the line:

connect(ui->myExistingButton, SIGNAL(clicked()), this, SLOT(Foo()));

我不能简单地添加行：

connect(ui->myNewButton, SIGNAL(clicked()), this, SLOT(Foo()));

编译错误是：

class UI::Viewer has no member named 'myNewButton'

QT Creator没有将该按钮列为 ui-> 的自动填充选项（即我没有简单地拼写名称）。除了ui文件中的坐标和命名外， myExistingButton 和 myNewButton 的记录相同。

And QT Creator does not list the button as an autocomplete option for ui-> (i.e. I haven't simply mis-spelled the name). The records for myExistingButton and myNewButton are identical apart from coordinates and naming in the ui file. What could be causing this problem?

推荐答案

我通过删除生成的文件来修复这个问题 ui_viewer.h 和然后重建。

I fixed this by deleting the generated file ui_viewer.h and then rebuilding.

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