如何在asp：checkboxlist中获取所选项目

i have a checkboxlist control

我有一个checkboxlist控件

<asp:CheckBoxList ID="chkselectedItems" Font-Size="12px" runat="server"> 
 </asp:CheckBoxList>

and i created listitems on it dynamically.If i checked more than one item from the checkbox list, How i get the selected item count using asp.net

我动态创建了列表项。如果我从复选框列表中检查了多个项目，我如何使用asp.net获取所选项目数量

thanks

谢谢

4 个解决方案

#1

Edit

编辑

int numSelected = 0;
foreach (ListItem li in chkselectedItems.Items)
{
if (li.Selected)
{
numSelected = numSelected + 1;
}
}
Response.Write("Total Number Of CheckBoxes Selected:");
Response.Write(numSelected);

pre

预

public string[] CheckboxListSelections(System.Web.UI.WebControls.CheckBoxList list)
{
 ArrayList values = new ArrayList();
 for(int counter = 0; counter < list.Items.Count; counter++)
 {
  if(list.Items[counter].Selected)
  {
   values.Add(list.Items[counter].Value);
  }    
 }
 return (String[]) values.ToArray( typeof( string ) );
}

#2

Use this single line of code:

使用这一行代码：

int selectedCount = chkselectedItems.Items.Cast<ListItem>().Count(li => li.Selected);

#3

We will iterate through the checkboxlist and use a counter variable for counting selected items. For every item in checkboxlist we will add 1 to counter variable selCount if item is checked

我们将遍历复选框列表并使用计数器变量来计算所选项目。对于checkboxlist中的每个项目，如果选中了item，我们将向计数器变量selCount添加1

int selCount = 0;   

for(int i= 0; i< chklst.Items.Count; i++) 
  if(chklst.Items[i].Selected)
      selCount++;

// Now selCount will contain the count of selected items

//现在selCount将包含所选项目的计数

#4

Using Linq

使用Linq

 var count=  chkmenuitemdef.Items.Cast<ListItem>().Where(c => c.Selected).Count();

#1