for (int i = 0; i < CheckBoxList1.Items.Count; i++)
{ if (CheckBoxList1.Items[i].Selected) Response.Write("你选的是" +CheckBoxList1.Items[i].Value+ CheckBoxList1.Items[i].Text + "<br>"); } 利用循环来顺序遍历每个选项，被选中的输出. for (int i = 0; i < hfAnswers.Value.Split(',').Length; i++)//给CheckBoxList选中的复选框 赋值 { for (int j = 0; j < CBoxListAnswer.Items.Count; j++) { if (hfAnswers.Value.Split(',')[i] == CBoxListAnswer.Items[j].Value) { CBoxListAnswer.Items[j].Selected = true; } } } string m_strTemp = string.Empty; for (int i = 0; i < CBoxListAnswer.Items.Count; i++)//读取CheckBoxList 选中的值,保存起来 { if (CBoxListAnswer.Items[i].Selected) { m_strTemp += CBoxListAnswer.Items[i].Value + ","; } } if (!string.IsNullOrEmpty(m_strTemp)) Label1.Text = m_strTemp.Substring(0, m_strTemp.Length - 1); else Label1.Text = m_strTemp; 1.绑定数据 this.lngCatalogID.DataSource = dt; //这里我绑到DataTable上了. this.lngCatalogID.DataTextField = "strCatalogName"; //前台看到的值,也就是CheckBoxList中显示出来的值 this.lngCatalogID.DataValueField = "lngCatalogID"; //这个值直接在页面上是看不到的,但在源代码中可以看到 this.lngCatalogID.DataBind(); 2.获取钩选的项 foreach(ListItem li in lngCatalogID.Items) { if(li.Selected) //表示某一项被选中了 { //li.Test表示看到的值,对应上面的strCatalogName //li.Value表示看到的值对应的值.对应上面的lngCatalogID } } 3.设置某项为钩选状态 foreach(ListItem li in lngCatalogID.Items) { if(li.Value.Equals("钩选条件")) //如果li.Value值等于某值,就钩选 { li.Selected = true; //等于true就表示钩选啦. break; } } 数据绑定 checkedListBox1.DataSource=ds.Tables[0]; checkedListBox1.ValueMember="intSectionID"; checkedListBox1.DisplayMember="txtShortDesc".ToString(); 数据显示 int count = checkedListBox1.Items.Count; for (int i = 0;i<count;i++) { if (checkedListBox1.GetItemChecked(i)) { MessageBox.Show(checkedListBox1.Items[i].ToString()); } } DataGrid中全选 foreach(DataGridItem thisItem in DataGridLogininfo.Items) { ((CheckBox)thisItem.Cells[0].Controls[1]).Checked = CheckBox2.Checked; } 反向选择 for (int i = 0; i < checkedListBox1.Items.Count; i++) { if (checkedListBox1.GetItemChecked(i)) { checkedListBox1.SetItemChecked(i, false); } else { checkedListBox1.SetItemChecked(i, true); } } checkboxlist控件用法范例 范例一： <script language="c#" runat="server"> public void Item_changed(Object sender,EventArgs e) { string str; foreach(ListItem item in cblist.Items) { if(item.Selected) mylabel.Text+="<hr><li>"+item.Text; } } </script> <html> <head><title>checkbox test page</title></head> <body> <form runat="server"> <asp:checkboxlist id="cblist" runat="server"> <asp:listitem text="checkbox1"/> <asp:listitem text="checkbox2"/> <asp:listitem text="checkbox3"/> <asp:listitem text="checkbox4"/> </asp:checkboxlist> <asp:button id="btn1" text="click me" OnClick="Item_changed" runat="server"/> <hr> <asp:label id="mylabel" runat="server"/> </form> </body> </html>