//页面
<ItemTemplate>
<asp:CheckBox ID="cb" runat="server" OnCheckedChanged="cb_CheckedChanged" AutoPostBack="true" /><%#Eval("MenuName") %>
<asp:CheckBoxList ID="cbl" AutoPostBack="true" runat="server" RepeatDirection="Horizontal"
RepeatColumns="6">
</asp:CheckBoxList>
</ItemTemplate>//后台
protected void cb_CheckedChanged(object sender, EventArgs e)
{
for (int i = 0; i < this.dlt.Items.Count; i++)
{
CheckBox cb = (CheckBox)dlt.Items[i].FindControl("cb");
CheckBoxList cbl = (CheckBoxList)dlt.Items[i].FindControl("cbl"); for (int j = 0; j < cbl.Items.Count; j++)
{
if (cb.Checked == true)
{
cbl.Items[j].Selected = true;
}
else if(cb.Checked==false)
{
cbl.Items[j].Selected = false;
}
} }
}我想要实现的功能是,点击父节点,则子节点全部选中,这个可以实现。接下来是把所有子节点的选中取消掉,则父节点的选中也取消,我的代码该如何改进? 谢谢!
{
for (int i = 0; i < this.dlt.Items.Count; i++)
{
CheckBox cb = (CheckBox)dlt.Items[i].FindControl("cb");
CheckBoxList cbl = (CheckBoxList)dlt.Items[i].FindControl("cbl"); for (int j = 0; j < cbl.Items.Count; j++)
{
if (cb.Checked == true)
{
cbl.Items[j].Selected = true;
}
else if(cb.Checked==false)
{
cbl.Items[j].Selected = false;
}
-------------- if ( cbl.Items[j].Selected == false)---------
{
cb.Checked=false;
}
else if(cbl.Items[j].Selected == true)
{
cb.Checked=true;
}
---------------------------------------------------------------
} }
}再加个IF判断。
function public_GetParentByTagName(element, tagName)
{
var parent = element.parentNode;
var upperTagName = tagName.toUpperCase();
//如果这个元素还不是想要的tag就继续上溯
while (parent && (parent.tagName.toUpperCase() != upperTagName))
{
parent = parent.parentNode ? parent.parentNode : parent.parentElement;
}
return parent;
} //设置节点的父节点Cheched——该节点可访问,则他的父节点也必能访问
function setParentChecked(objNode)
{
var objParentDiv = public_GetParentByTagName(objNode,"div");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
var objID = objParentDiv.getAttribute("ID");
objID = objID.substring(0,objID.indexOf("Nodes"));
objID = objID+"CheckBox";
var objParentCheckBox = document.getElementById(objID);
if(objParentCheckBox==null || objParentCheckBox == "undefined")
{
return;
}
if(objParentCheckBox.tagName!="INPUT" && objParentCheckBox.type == "checkbox")
return;
objParentCheckBox.checked = true;
setParentChecked(objParentCheckBox);
} //设置节点的子节点uncheched——该节点不可访问,则他的子节点也不能访问
function setChildUnChecked(divID)
{
var objchild = divID.children;
var count = objchild.length;
for(var i=0;i<objchild.length;i++)
{
var tempObj = objchild[i];
if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox")
{
tempObj.checked = false;
}
setChildUnChecked(tempObj);
}
} //设置节点的子节点cheched——该节点可以访问,则他的子节点也都能访问
function setChildChecked(divID)
{
var objchild = divID.children;
var count = objchild.length;
for(var i=0;i<objchild.length;i++)
{
var tempObj = objchild[i];
if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox")
{
tempObj.checked = true;
}
setChildChecked(tempObj);
}
} //触发事件
function CheckEvent()
{ var objNode = event.srcElement; if(objNode.tagName!="INPUT" || objNode.type!="checkbox")
return; if(objNode.checked==true)
{
setParentChecked(objNode);
var objID = objNode.getAttribute("ID");
var objID = objID.substring(0,objID.indexOf("CheckBox"));
var objParentDiv = document.getElementById(objID+"Nodes");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
setChildChecked(objParentDiv);
}
else
{
var objID = objNode.getAttribute("ID");
var objID = objID.substring(0,objID.indexOf("CheckBox"));
var objParentDiv = document.getElementById(objID+"Nodes");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
setChildUnChecked(objParentDiv);
}
}
{
bool trueOrfalse=false;
CheckBox cb = (CheckBox)dlt.Items[i].FindControl("cb");
CheckBoxList cbl = (CheckBoxList)dlt.Items[i].FindControl("cbl"); for (int j = 0; j < cbl.Items.Count; j++)
{
if(cbl.Items[j].Selected == true)
{
trueOrfalse=true;
}
}
if (trueOrfalse)
{
cb.Checked=true;
}
} }
这次应该可以了,你再写个这事件。。
//CheckBox1是在GridView1的模板列中的
protected void CheckBox2_CheckedChanged(object sender, EventArgs e)
{//复选
if (CheckBox2.Checked == true)
{
CheckBox2.Text = "全选";
for (int i = 0; i < GridView1.Rows.Count; i++)
{
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); cbox.Checked = true;
}
}
else
{
CheckBox2.Text = "全不选";
for (int i = 0; i < GridView1.Rows.Count; i++)
{
CheckBox cbox = (CheckBox)GridView1.Rows[i].FindControl("CheckBox1"); cbox.Checked = false;
}
}
}
哦,少了一个你那个循环
for (int i = 0; i < this.dlt.Items.Count; i++)
{
}
<ContentTemplate>
<asp:DataList ID="dlt" runat="server" DataKeyField="autoid" OnItemDataBound="dlt_ItemDataBound"
RepeatDirection="Vertical">
<ItemTemplate>
<asp:CheckBox ID="cb" runat="server" OnCheckedChanged="cb_CheckedChanged" AutoPostBack="true" /><%#Eval("MenuName") %>
<asp:CheckBoxList ID="cbl" AutoPostBack="true" runat="server" RepeatDirection="Horizontal"
RepeatColumns="6">
</asp:CheckBoxList>
</ItemTemplate>
</asp:DataList>
protected void cb_CheckedChanged(object sender, EventArgs e)
{
for (int i = 0; i < this.dlt.Items.Count; i++)
{
CheckBox cb = (CheckBox)dlt.Items[i].FindControl("cb");
CheckBoxList cbl = (CheckBoxList)dlt.Items[i].FindControl("cbl");
for (int j = 0; j < cbl.Items.Count; j++)
{
if (cb.Checked == true)
{
cbl.Items[j].Selected = true;
}
else if (cb.Checked == false)
{
cbl.Items[j].Selected = false;
}
}
}
}我的代码该如何改才能实现我说的效果。