在DataList中绑定RadiobuttonList [英] Bind RadiobuttonList inside DataList
问题描述
早上好。
我在发布这里之前多次搜索。
我正在开展一项类似调查的项目[问题与解答]
我能够在datalist中获得所有问题，现在我正在寻找在每个问题内的单选按钮列表中显示答案的方法。
这里是页面加载
Hi,
Good morning .
I search many times before posting here .
I am working on a project like a survey [Questions and Answers]
I am able to get all questions in datalist , now i am searching a way to display the answers in Radio button list inside each question .
here is page load
protected void Page_Load(object sender, EventArgs e)
{
string CS = ConfigurationManager.ConnectionStrings["TMConnectionString"].ConnectionString;
SqlConnection con = new SqlConnection(CS);
//Getting All Questions
SqlDataAdapter dr = new SqlDataAdapter("select * from Question ", con);
DataSet ds = new DataSet();
dr.Fill(ds, "Qs");
OuterDataList.DataSource = ds.Tables["Qs"];
OuterDataList.DataBind();
}
这是页面正文
here is page body
<body>
<form id="form1" runat="server">
<h1>Test Page</h1>
<asp:DataList ID="OuterDataList" RunAt="server">
<ItemTemplate>
<h4><%# DataBinder.Eval (Container.DataItem, "Question") %></h4>
<asp:RadioButtonList ID="RadioButtonList1" runat="server"></asp:RadioButtonList>
</ItemTemplate>
</asp:DataList>
</form>
</body>
i不知道如何绑定radiobuttonlist并将答案分组。
注意：Question表和Answer表之间的公共列是Question_id
i dont know how to bind radiobuttonlist and group the answers .
note : the common column between Question table and Answer table is Question_id
推荐答案
查看以下链接
https://humrahimcs.wordpress.com/tag/asp-net-datalist-nested-with-radiobuttonlist/ [ ^ ]
希望有帮助
Check the below link
https://humrahimcs.wordpress.com/tag/asp-net-datalist-nested-with-radiobuttonlist/[^]
Hope it helps
将隐藏字段绑定到问题ID并找到它ItemDataBound
Put a Hidden field bind the question id and find it ItemDataBound
<asp:hiddenfield id=""hnQuestionsid"" runat=""server"" value="<%# DataBinder.Eval(Container.DataItem, "Questionsid")%>" xmlns:asp="#unknown" />
代码方
in code side
protected void OuterDataList_ItemDataBound(object sender, DataListItemEventArgs e)
{
DataListItem drv = e.Item.DataItem as DataListItem;
RadioButtonList RadioButtonList1 = (RadioButtonList)e.Item.FindControl("RadioButtonList1");
HiddenField hnQuestionsid = (HiddenField)e.Item.FindControl("hnQuestionsid");
DataSet ds = loadQuestionOptionbyqid(hnQuestionsid.Value);
if (ds != null && ds.Tables[0].Rows.Count > 0)
{
RadioButtonList1.DataSource = ds;
RadioButtonList1.DataTextField = "questionName";// something like this
RadioButtonList1.DataValueField = "questionID";
RadioButtonList1.DataBind();
}
}
你可以在gridview rowdatabound事件中绑定，就像这样。
You can bind then in gridview rowdatabound event like this.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int rdbValue= (int)DataBinder.Eval(e.Row.DataItem, "rdbID");
RadioButtonList rb = (RadioButtonList)e.Row.FindControl("RadioButtonListID");
rb.Items.FindByValue(rdbValue.ToString()).Selected = true;
}
}
我希望你明白我的意思。
更多info。
http ：//www.c-sharpcorner.com/UploadFile/54db21/gridview-with-radiobutton-binding/ [ ^ ]
这篇关于在DataList中绑定RadiobuttonList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！
