我如何将数据随机绑定到一个单选按钮列表
本文关键字:一个 列表 单选按钮 数据 绑定 随机 | 更新日期: 2023-09-27 18:09:50
我正在构建一个表单。我需要在radiobuttonlist
中显示我的问题,然后显示3个答案[它们是同一表中的列]。
我尝试将数据自动绑定到Datalist
。
然后检查如果正确的答案被选中…如果不是,我需要显示一个错误
<asp:DataList ID="DataList1t" runat="server" DataSourceID="AccessDataSource1" onitemdatabound="DataList1_ItemDataBound" onselectedindexchanged="DataList1t_SelectedIndexChanged1">
<ItemTemplate>
<table>
<tr>
<td>
<%# Eval("TheQus") %>
</td>
</tr>
<tr>
<td>
<asp:RadioButtonList runat="server" ID="RadioButtonList1">
</asp:RadioButtonList>
</td>
</tr>
</table>
<br />
<br />
</ItemTemplate>
</asp:DataList>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/Databasegeometreyeh.accdb" SelectCommand="SELECT TOP 4 Qus.ID, Qus.TheQus, Qus.CorrectAns, Qus.Ans2, Qus.Ans3 FROM EkhtbrNafsk INNER JOIN Qus ON EkhtbrNafsk.ID = Qus.Type WHERE Qus.Type= 1 order By rnd(Qus.ID)"></asp:AccessDataSource>
后面的代码是
protected void Page_Load(object sender, EventArgs e)
{
//DataList1t.Visible = false;
//DataTable QusTri = DAL.SelectFromTable("SELECT TOP 4 Qus.TheQus FROM EkhtbrNafsk INNER JOIN Qus ON EkhtbrNafsk.ID = Qus.Type WHERE Qus.Type=" + 1 + " order By rnd(Qus.ID)");
//DataList1t.DataSource = QusTri;
//DataList1t.DataBind();
//DataList1r.Visible = false;
//DataTable Qusrepoe = DAL.SelectFromTable("SELECT TOP 4 Qus.TheQus FROM EkhtbrNafsk INNER JOIN Qus ON EkhtbrNafsk.ID = Qus.Type WHERE Qus.Type= " + 2 + " order By rnd(Qus.ID)");
//DataList1r.DataSource = Qusrepoe;
//DataList1r.DataBind();
if (!IsPostBack)
{
DataTable t1 = DAL.SelectFromTable("select * from [EkhtbrNafsk]");
DropDownList1.DataTextField = "TypeTest";
DropDownList1.DataValueField = "ID";
DropDownList1.DataSource = t1;
DropDownList1.DataBind();
DataList1t.Visible = false;
DataList1r.Visible = false;
}
}
protected void Button2_Click(object sender, EventArgs e)
{
if (DropDownList1.SelectedValue == "1")
{
DataList1t.Visible = true;
}
else if (DropDownList1.SelectedValue == "2")
DataList1r.Visible = true;
}
protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item)
{
RadioButtonList RadioButtonList1 = (RadioButtonList)e.Item.FindControl("RadioButtonList1");
int QuestionID = Convert.ToInt32(DataBinder.Eval(e.Item.DataItem, "ID"));
DataTable dt = DAL.SelectFromTable("SELECT Qus.ID, Qus.CorrectAns, Qus.Ans2, Qus.Ans3 FROM EkhtbrNafsk INNER JOIN Qus ON EkhtbrNafsk.ID = Qus.Type WHERE Qus.ID=" + QuestionID);
RadioButtonList1.Items.Add(dt.Rows[0][0].ToString());
RadioButtonList1.Items.Add(dt.Rows[0][1].ToString());
RadioButtonList1.Items.Add(dt.Rows[0][2].ToString());//Bind the RadiobUttonList here
}
}
试试这个:
DataTable dt = DAL.SelectFromTable("SELECT Qus.ID, Qus.CorrectAns, Qus.Ans2, Qus.Ans3 FROM EkhtbrNafsk ORDER BY rand() INNER JOIN Qus ON EkhtbrNafsk.ID = Qus.Type WHERE Qus.ID=" + QuestionID );