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>