CheckBoxList 用法强解

Code
Code
 //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
            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.
            //给CheckBoxList选中的复选框 赋值
            for (int i = 0; i < hfAnswers.Value.Split(',').Length; i++)
            {
                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;



            //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);
                }
            }

改变成类通用

 #region  取复选框的值
    /// <summary>
    /// 取复选框的值
    /// </summary>
    /// <param name="ID">保存复选框的Value</param>
    /// <param name="Name">保存复选框的Text</param>
    /// <param name="CheckBoxListID">复选框ID</param>
    protected void SaveCheckBoxList(TextBox ID, TextBox Name, CheckBoxList CheckBoxListID)
    {
        string mID = string.Empty;
        string mName = string.Empty;
        for (int i = 0; i < CheckBoxListID.Items.Count; i++)//读取CheckBoxList 选中的值,保存起来
        {
            if (CheckBoxListID.Items[i].Selected)
            {
                mID += CheckBoxListID.Items[i].Value + "★";
                mName += CheckBoxListID.Items[i].Text + ",";
            }
        }
        if (!string.IsNullOrEmpty(mID))
        {
            ID.Text = mID.Substring(0, mID.Length - 1);
            Name.Text = mName.Substring(0, mName.Length - 1);
        }
        else
        {
            ID.Text = mID+"空";
            Name.Text = mName;
        }
    }
     #endregion