如何将复选框项目存储到 C# 中的字符串数组中？

Question

如何存储复选框列表中选中的项目？我没有课，所以我不能使用 ListItems。我的复选框列表是使用我的数据库 (MS Access) 填充的。

connection.Open();
OleDbCommand command = new OleDbCommand();
command.Connection = connection;
command.CommandText = @"SELECT CONTENT FROM " + tab + " GROUP BY CONTENT ORDER BY MIN(CHAP)";
OleDbDataAdapter dAdap = new OleDbDataAdapter(command);
DataSet dSet = new DataSet();
dAdap.Fill(dSet);
for (int i = 0; i < dSet.Tables[0].Rows.Count; i++)
{
    chkList.Items.Add(dSet.Tables[0].Rows[i][0].ToString()); //This is the part where the items are populated
}
connection.Close();

使用 foreach 编辑

foreach (string chk in chkList.CheckedItems)
{
    MessageBox.Show(chk.ToString()); //This gets every string checked, but one after another
    top = chk;
}

我的查询

"SELECT TOP " + num + " QUESTION,C1,C2,C3,C4,ANSWER,CONTENT FROM " + tab + " WHERE CONTENT = '" + top + "'"

它只查询最后检查的项目。

编辑以计算检查的项目

MessageBox.Show(chkList.CheckedItems.Count.ToString());

string[] topic = new string[chkList.CheckedItems.Count];
for (int i = 0; i < topic.Length; i++)
{
    topic[i] = //How to get the text for each checked items?                
}

Answer 1

也许这可以帮助你：

connection.Open();
OleDbCommand command = new OleDbCommand();
command.Connection = connection;
command.CommandText = @"SELECT CONTENT FROM " + tab + " GROUP BY CONTENT ORDER BY MIN(CHAP)";
OleDbDataAdapter dAdap = new OleDbDataAdapter(command);
DataSet dSet = new DataSet();
dAdap.Fill(dSet);
string[] chkList = new string[dSet.Tables[0].Rows.Count]
for (int i = 0; i < dSet.Tables[0].Rows.Count; i++)
{
    chkList[i]=dSet.Tables[0].Rows[i][0].ToString(); //This is the part where the items are populated
}
connection.Close();