private void exam_Load(object sender, EventArgs e)
{
GetCount();
MySqlConnection con = new MySqlConnection("server = localhost; user id = root; password =; database = dbtest1;");
MySqlCommand cmd = new MySqlCommand("SELECT question, question_no, choice1, choice2, choice3, choice4 from quiz_tions where quiz_id = '" + lid + "' ORDER BY RAND() LIMIT " + count + ";", con);
MySqlDataAdapter sda = new MySqlDataAdapter(cmd);
DataTable dt = new DataTable();
sda.Fill(dt);
label5.DataBindings.Add("Text", dt, "question");
label6.DataBindings.Add("Text", dt, "question_no");
rb1.DataBindings.Add("Text", dt, "choice1");
rb2.DataBindings.Add("Text", dt, "choice2");
rb3.DataBindings.Add("Text", dt, "choice3");
rb4.DataBindings.Add("Text", dt, "choice4");
dataRepeater1.DataSource = dt;
LoadData();
label1.Text = qtitle;
label3.Text = qtype;
}
我在表单上使用了一个 DataRepeater
控件,并使用上面的代码进行填充。每次执行这段代码时...
private void button3_Click(object sender, EventArgs e)
{
foreach (DataRepeaterItem c in dataRepeater1.Controls)
{
ss += ((Label)c.Controls["label5"]).Text + "\n";
}
MessageBox.Show(ss);
ss = "";
}
在单击按钮之前单击不同行时,结果会有所不同(有时为3行,有时为4行),因为在执行此操作时我的DataRepeater控件上有5行。这是为什么?遍历DataRepeater的行的正确方法是什么?
另一个问题(也许与我的帖子无关)是每当我在DataRepeater上向下/向上滚动时,它有时会自动勾选列表中的随机RadioButton。这个控件有什么问题?
label5.Text
不是空的吗? - M. Wiśnickiss
is aTextBox
type? If yes try...+ "\r\n"
instead...+"\n"
- M. Wiśnicki