我如何第一次运行表单

问题描述

是VB.net的新手，并使用visual studio 2017在vb.net中创建项目。我正在开发一个使用sql server 2017作为后端的教堂管理系统。启动表单是登录。我还有一个用于设置sql server的表单。所以我希望sql server表单运行一次，直到创建sqlserver.dat。我使用sqlserver.dat作为我的connectionstring。所以我只需要一次运行sql server设置表单的帮助，这样当创建sqlserver.dat时它不会再次运行但会在我构建项目的任何时候运行登录表单



我尝试了什么：



正如我在vb.net中的新问题中所说的并且不知道如何去做，这就是为什么要问

Am new to VB.net and creating a project in vb.net using visual studio 2017. Am developing a church management system which uses sql server 2017 as the back end. The startup form is the login. I also have a form for setting the sql server. So i want the sql server form to run for one time until sqlserver.dat is created. Am using the sqlserver.dat as my connectionstring. So i want help on running sql server setting form for only one time so that when the sqlserver.dat is created it won't run again but will run the login form anytime i build my project

What I have tried:

As i said in the question am new in vb.net and have no idea how to go about it and thats why am asking

推荐答案

//opening the subkey  
RegistryKey key = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\OurSettings");
bool bShowForm = true;

//if it does exist, retrieve the stored values  
if (key != null)
{
    if (key.GetValue("ShowSettingsForm") == "0")
      bShowForm  = false;

    key.Close();
}

// now show form and set key to "0"
if (bShowForm  )
{
  // ....
  key.SetValue("ShowSettingsForm", "0");
}

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