多个复选框值插入并返回到c＃windows应用程序中的复选框 [英] Multiple checkbox value insert and retrive back to checkbox in c# windows application

问题描述

嘿，请帮助我在我的Windows应用程序中发现这个问题。

im试图将数值插入数据库的工作但是在时间上它不再工作了。



我尝试过：



1）插入

string checkvalues =;

foreach（在..groupBox5.Controls中控制c）

{

if（c是CheckBox）

{

CheckBox b =（CheckBox）c;

if（b.Checked）

{

checkvalues = b.Text ++ checkvalues;

}

}

}

2）我已经删除了我的提取代码

Hey please help me to short out this .problem occured in my windows application,
i m trying to insert value into db its work but at fetching time its not work any more.

What I have tried:

1)To insert
string checkvalues = "";
foreach (Control c in this.groupBox5.Controls)
{
if (c is CheckBox)
{
CheckBox b = (CheckBox)c;
if (b.Checked)
{
checkvalues = b.Text + "" + checkvalues;
}
}
}
2)I have errased my code of fetching

推荐答案

首先使用唯一的分隔符，这样如果你有6个带有文本1的复选框，2 等等，您可以在恢复值时轻松分离它们。您正在寻找的是一个看起来像这样的结果字符串：

Start by using unique separator characters, so that if you have 6 checkboxes with the text "1", "2", and so forth, you can easily seperate them when you restore the values. What you are looking for is a result string that looks somethign like this:

string demo = "1=true;2=false;3=true;4=false;5=false;6=false";

然后你可以使用string.Split两次来打破你需要的值：

You can then use string.Split twice to break out the values you need:

string[] boxes = demo.ToLower().Split(';');
foreach (string box in boxes)
   {
   string parts = box.Split('=');
   if (!parts.Length == 2) throw new ApplicationException("Bad checkbox data: " + box);
   bool checked = parts[1] == "true";
   switch(parts[0])
      {
      default: throw new ApplicationException("Unknown checkbox: " + box);
      case "1": checkbox1.Check = checked; break;
      case "2": checkbox2.Check = checked; break;
      case "3": checkbox3.Check = checked; break;
      case "4": checkbox4.Check = checked; break;
      case "5": checkbox5.Check = checked; break;
      case "6": checkbox6.Check = checked; break;
      }
   }

生成字符串是对现有代码的微不足道的更改：

To generate your string is trivial changes on your existing code:

string checkvalues = "";
string sep = "";
foreach (Control c in this.groupBox5.Controls)
    {
    if (c is CheckBox)
        {
        CheckBox b = (CheckBox)c;
        checkvalues = string.Format("{0}{1}{2}={3}", checkvalues, sep, b.Text, b.Checked);
        sep = ";";
        }
    }

这篇关于多个复选框值插入并返回到c＃windows应用程序中的复选框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！