<input type="checkbox" name="list" value="1"><input type="checkbox" name="list" value="2"><input type="checkbox" name="list" value="3">
<input id="Button1" type="button" value="button" onclick="qxuan()"/> <script type="text/javascript">
function qxuan()
{
var kj=document.getElementById("CheckBoxList2")
for(i=0;i<kj.length;i++)
{
kj[i].checked=true;
}
}
</script>
Button1的onclick实现对checkbox的全选操作。可checkbox是html控件。
1、javascript可以对服务器控件操作么？
2、如果可以这个函数怎么修改才可以可以对服务器控件操作？如CheckBoxList服务器控件进行全选？
<input id="Button1" type="button" value="button" onclick="qxuan()"/> <script type="text/javascript">
function qxuan()
{
var kj=document.getElementById("CheckBoxList2")
for(i=0;i<kj.length;i++)
{
kj[i].checked=true;
}
}
</script>
Button1的onclick实现对checkbox的全选操作。可checkbox是html控件。
1、javascript可以对服务器控件操作么？
2、如果可以这个函数怎么修改才可以可以对服务器控件操作？如CheckBoxList服务器控件进行全选？
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">
// 计算数据，完全可以从数据看取得
ICollection CreateDataSource()
{
System.Data.DataTable dt = new System.Data.DataTable();
System.Data.DataRow dr;
dt.Columns.Add(new System.Data.DataColumn("序号", typeof(System.String)));
dt.Columns.Add(new System.Data.DataColumn("学生姓名", typeof(System.String)));
dt.Columns.Add(new System.Data.DataColumn("语文", typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn("数学", typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn("英语", typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn("计算机", typeof(System.Decimal))); for (int i = 0; i < 8; i++)
{
System.Random rd = new System.Random(Environment.TickCount * i); ;
dr = dt.NewRow();
dr[0] = i.ToString();
dr[1] = "【孟子E章】" + i.ToString();
dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);
dt.Rows.Add(dr);
}
System.Data.DataView dv = new System.Data.DataView(dt);
return dv;
} protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{ GridView2.DataSource = GridView1.DataSource = CreateDataSource();
GridView2.DataBind();
GridView1.DataBind();
}
} protected void Button1_Click(object sender, EventArgs e)
{
Ret1.Text = "";
foreach (GridViewRow gvr in GridView1.Rows)
{
CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
if (ch.Checked)
{
Ret1.Text += "<li>GridView1 您选择的是（键值）：" + GridView1.DataKeys[gvr.DataItemIndex].Value.ToString();
}
}
} protected void Button2_Click(object sender, EventArgs e)
{
Ret2.Text = "";
foreach (GridViewRow gvr in GridView2.Rows)
{
CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
if (ch.Checked)
{
Ret2.Text += "<li>GridView2 您选择的是（键值）：" + GridView2.DataKeys[gvr.DataItemIndex].Value.ToString();
}
}
} protected void CheckAll(object sender, EventArgs e)
{
CheckBox cbx = (CheckBox)sender;
foreach (GridViewRow gvr in GridView1.Rows)
{
CheckBox ch = (CheckBox)gvr.FindControl("ItemCheckBox");
ch.Checked = cbx.Checked;
}
}
</script><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>GridView 实现服务器端和客户端全选的两种方法</title> <script type="text/javascript">
//<![CDATA[
function CheckAll(oCheckbox)
{
var GridView2 = document.getElementById("<%=GridView2.ClientID %>");
for(i = 1;i < GridView2.rows.length; i++)
{
GridView2.rows[i].cells[0].getElementsByTagName("INPUT")[0].checked = oCheckbox.checked;
}
}
//]]>
</script></head>
<body>
<form id="Form1" runat="server">
<table style="width:800px;font-size:12px;">
<tr valign="top">
<td>
<asp:GridView ID="GridView1" runat="server" Font-Size="12px" BackColor="#FFFFFF"
GridLines="Both" CellPadding="4" DataKeyNames="序号" AutoGenerateColumns="false">
<HeaderStyle BackColor="#EDEDED" Height="26px" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" Text="全选" AutoPostBack="true" OnCheckedChanged="CheckAll" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="ItemCheckBox" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="学生姓名" HeaderText="学生姓名" />
<asp:BoundField DataField="语文" HeaderText="语文" />
<asp:BoundField DataField="数学" HeaderText="数学" />
<asp:BoundField DataField="英语" HeaderText="英语" />
<asp:BoundField DataField="计算机" HeaderText="计算机" />
</Columns>
</asp:GridView>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="得到选择的行值" />
</td>
<td align="right">
<asp:GridView ID="GridView2" runat="server" Font-Size="12px" BackColor="#FFFFFF"
GridLines="Both" CellPadding="4" DataKeyNames="序号" AutoGenerateColumns="false">
<HeaderStyle BackColor="#EDEDED" Height="26px" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
<input id="Checkbox2" type="checkbox" onclick="CheckAll(this)" runat="server" /><label>全选</label>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="ItemCheckBox" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="学生姓名" HeaderText="学生姓名" />
<asp:BoundField DataField="语文" HeaderText="语文" />
<asp:BoundField DataField="数学" HeaderText="数学" />
<asp:BoundField DataField="英语" HeaderText="英语" />
<asp:BoundField DataField="计算机" HeaderText="计算机" />
</Columns>
</asp:GridView>
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="得到选择的行值" />
</td>
</tr>
<tr valign="top">
<td>
<asp:Literal ID="Ret1" runat="server"></asp:Literal>
</td>
<td align="right">
<asp:Literal ID="Ret2" runat="server"></asp:Literal>
</td>
</tr>
</table>
</form>
</body>
</html>
{
var CheckBoxList = document.getElementById('你的checkboxlist的id');
//设置RepeatLayout="Table",默认就是table
if(CheckBoxList.tagName == "TABLE")
{
for(i=0;i<CheckBoxList.rows.length;i++)
{
for(j=0;j<CheckBoxList.rows[i].cells.length;j++)
{
if(CheckBoxList.rows[i].cells[j].childNodes[0])
{
CheckBoxList.rows[i].cells[j].childNodes[0].checked=true;
}
}
}
}
}
//设置RepeatLayout="Flow"
if(CheckBoxList.tagName == "Flow")
{
for(i=0;i<CheckBoxList.childNodes.length;i++)
{
if(CheckBoxList.childNodes[i].tagName == "INPUT")
{
CheckBoxList.childNodes[i].checked=true;
}
}
}
js:
var elems = document.getElementById("<%= Yourgridview.ClientID %>").getElementsByTagName("input");
for(var i=0;i<elems.length;i++){
if(elems[i].type=="checkbox")elems[i].checked = true;
}
全选代码象下面
function checkAll(){
var chks=document.getElementById("<%=CheckBoxList1.ClientID %>").getElementsByTagName("input");
for(var i=0;i<chks.length;++i){
chks[i].checked=true;
}
}
</script>
我正好做了这个功能，我的代码：
前台：<input name="cbOrder" type="checkbox" />
//点击全选checkbox时，该列的checkbox全为选中状态
function selectAll()
{
var all = document.getElementById("cbOrderAll");
var str=document.getElementsByName("cbOrder");
if(all.checked)
{
for(var i=0; i<str.length; i++) str[i].checked = true;
}
else
{
for(var i=0; i<str.length; i++) str[i].checked = false;
}
}后台：
string RecordID = Request.Form["cbOrder"].ToString(); //获得所有记录ID
function checkAll(oCheckbox)
{
var chks=document.getElementById("<%=CheckBoxList1.ClientID %>").getElementsByTagName("input");
for(var i=0;i<chks.length;++i)
{
chks[i].checked = oCheckbox.checked;
}
}
</script>
<input id="Checkbox1" type="checkbox" onclick="checkAll(this)" runat="server" /><label>全选</label>控件是一个checkbox全选按钮
和一个checkboxlist被全选项
2、可以这样进行修改： <script type="text/javascript">
function qxuan()
{
var kj=document.getElementsByTagName("input");
for(i=0;i <kj.length;i++)
{
if(kj[i].type == "checkbox")
{
kj[i].checked = true;
}
}
}
请问一下RecordID值在后台有什么作用呢？？？