[英]How can I get selected values from radio button list and check box list?
我正在嘗試從C.asp.net的單選按鈕列表和復選框列表中獲取選定的值。 這是我的代碼。
protected void Next_Click(object sender, EventArgs e)
{
var retList = new List<string>();
foreach (RepeaterItem item in questionRepeater.Items)
{
// Checking the item is a data item
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
{
var rdbList = item.FindControl("RadioButtonList1") as RadioButtonList;
// Get the selected value
if (rdbList != null)
{
retList.Add(rdbList.SelectedValue);
}
}
}
foreach (RepeaterItem item in questionRepeater.Items)
{
// Checking the item is a data item
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
{
var rdbList = item.FindControl("CheckBoxList1") as CheckBoxList;
// Get the selected value
if (rdbList != null)
{
retList.Add(rdbList.SelectedValue);
}
}
}
}
<asp:Repeater ID="questionRepeater" runat="server">
<ItemTemplate>
<div runat="server" visible='<%# (Eval("QUESTION_TYPE").ToString() ==
"0") %>'>
<table style="width:100%; table-layout: fixed;">
<asp:RadioButtonList id="RadioButtonList1" CellSpacing="50"
TextAlign="Left" runat="server"
DataSource='<%#GetChild(Container.DataItem,"ChoicesRelate") %>'
DataTextField="CHOICES_CONTENT" DataValueField="CHOICES_NO">
</asp:RadioButtonList>
</table>
</div>
<div runat="server" visible='<%# (Eval("QUESTION_TYPE").ToString() ==
"1") %>'>
<table style="width:100%; table-layout: fixed;">
<asp:CheckBoxList id="CheckBoxList1" CellSpacing="50" TextAlign="Left"
runat="server"DataSource='<%#GetChild(Container.DataItem,"ChoicesRelate")
%>' DataTextField="CHOICES_CONTENT" DataValueField="CHOICES_NO">
</asp:CheckBoxList>
</table>
</div>
<br />
</ItemTemplate>
</asp:Repeater>
我在下面提到了答案。 使用數據源asp.net獲取單選按鈕列表響應
我不能從復選框列表中獲得所有選定的值(僅一個值),而我卻可以從單選按鈕列表中獲得所有的值。我該怎么辦? 請幫我..
您可以嘗試這樣的事情:
using System.Linq
...
foreach (RepeaterItem item in questionRepeater.Items)
{
// Checking the item is a data item
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
{
var rdbList = item.FindControl("CheckBoxList1") as CheckBoxList;
// Get the selected value
if (rdbList != null)
{
//get selected items' values
List<string> selectedItems = rdbList.Items.Cast<ListItem>()
.Where(li => li.Selected)
.Select(li => li.Value)
.ToList();
//add to your list of strings
retList.AddRange(selectedItems);
}
}
}
或者,如果您不想使用Linq,
if (item.ItemType == ListItemType.Item || item.ItemType == ListItemType.AlternatingItem)
{
var rdbList = item.FindControl("CheckBoxList1") as CheckBoxList;
// Get the selected value
if (rdbList != null)
{
foreach (ListItem li in rdbList.Items)
{
if (li.Selected)
retList.Add(li.Value);
}
}
}
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