从后台传参数到前台页面中的JS方法里

Question

请教下，我在后台执行JS方法
string s1=sdr["areaid"].ToString();
                        string s2 = sdr["Left"].ToString();
                        string s3 = sdr["Right"].ToString();
                        string s4 = sdr["areaname"].ToString();                        Page.RegisterStartupScript("key", "<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");
前台JS方法如下：    function initialize(id, w, h, l, t, tit) {
             var a=new xWin(id, w, h, l, t,tit);        }
会有语法错误？请教了,我主要想从后台传参数到前台页面中的JS方法里

Answer 1

vs 03 ?Page.RegisterStartupScript("key", "<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");注意单引号的问题

Answer 2

RegisterStartupScript("key", "<script language='javascript'>initialize("+s1+",70,50," + s2 + "," + s3 + "," + s4 + ")</script>");

Answer 3

RegisterStartupScript("key", "<script language='javascript'>initialize('"+s1+"','70','50','" + s2 + "','" + s3 + "','" + s4 + "')</script>");
还可使用隐藏域Hiddenfield
public string GetA() 
{ return "";
} 
javascript代码 
function getA() 
{ 
var a=" <%=GetA()%>"; 
return a; 
} 

Answer 4

说明一下，s1是ID号，int类型，s2,s3是float类型，s4是中文,你这个还是一样提示无法打开页面，终止操作

Answer 5

08 的话 应该使用ClientScript.RegisterStartupScript你现在的情况这样写<script language='javascript'>
=》<script language='javascript' defer='defer'>

Answer 6

<script language="javascript" defer='defer' type="text/javascript">
ClientScript.RegisterStartupScript(this.GetType(),"key","<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");
你的写法还是提示原来的错误呀

Answer 7

前台代码里var a=new xWin(id, w, h, l, t,tit);
以下是我所引用的的xWin  JS方法//创建一个对象;
function xWin(id,w,h,l,t,tit)
{
index = index+2;
this.id      = id;
this.width   = w;
this.height  = h;
this.left    = l;
this.top     = t;
this.zIndex  = index;
this.title   = tit;
this.obj     = null;
this.bulid   = bulid;
this.bulid();
}
//初始化;
function bulid()
{
var str = ""
+ "<div id=xMsg" + this.id + " "
+ "style='"
+ "z-index:" + this.zIndex + ";"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "left:" + this.left + ";"
+ "top:" + this.top + ";"
+ "background-color:" + normal + ";"
+ "color:" + normal + ";"
+ "font-size:10px;"
+ "font-family:Verdana;"
+ "position:absolute;"
+ "cursor:default;"
+ "border:2px solid " + normal + ";"
+ "' "
+ "onmousedown='getFocus(this)'>"
+ "<div "
+ "style='"
+ "background-color:" + normal + ";"
+ "width:" + (this.width-2*2) + ";"
+ "height:20;"
+ "color:white;"
+ "' "
+ "onmousedown='startDrag(this)' "
+ "onmouseup='stopDrag(this)' "
+ "onmousemove='drag(this)' "
+ "ondblclick='min(this.childNodes[1])'"
+ ">"
+ "<span style='width:" + (this.width - 2 * 12 - 4) + ";padding-left:3px;'>" + this.title + "</span>"
+ "</div>"
+ "<div style='"
+ "width:100%;"
+ "height:0;"
+ "background-color:white;"
+ "line-height:14px;"
+ "word-break:break-all;"
+ "'></div>"
+ "</div>"
+ "<div style='"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "top:" + this.top + ";"
+ "left:" + this.left + ";"
+ "z-index:" + (this.zIndex-1) + ";"
+ "position:absolute;"
+ "background-color:black;"
+ "filter:alpha(opacity=40);"
+ "'>by wildwind</div>";
document.body.insertAdjacentHTML("beforeEnd",str);
}
//-->
</script>

Answer 8

传过去的值依次是  1  70  50  100  18 china

Answer 9

我现在的写法，如下：
前台相关代码：
<script language="javascript" defer='defer' type="text/javascript">    function initialize(id, w, h, l, t, tit) {             var a=new xWin(id, w, h, l, t,tit);        }

</script>后台代码：
int n=Convert.ToInt32(SQLHelper2.ExecuteScalar(SQLHelper2.ConnectionStringLocalTransaction,CommandType.Text,"select count(*) from Area",null));
            SqlDataReader sdr = SQLHelper2.ExecuteReader(SQLHelper2.ConnectionStringLocalTransaction, CommandType.Text, "select * from Area",null);
            if(sdr.HasRows)
            {
                if(sdr.Read())
                {
                    for(int i=0;i<n;i++)
                    {
                        string s1=sdr["areaid"].ToString();
                        string s2 = sdr["Left"].ToString();
                        string s3 = sdr["Right"].ToString();
                        string s4 = sdr["areaname"].ToString();                        //Page.RegisterStartupScript("key", "<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");
                        ClientScript.RegisterStartupScript(this.GetType(),"key","<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");
                        //Page.RegisterStartupScript("key", "<script language='javascript'>initialize();</script>");
                        //  Page.RegisterStartupScript("key", "<script language='javascript'>initialize('1',70,18,100,0,'22');</script>");
                    }
                }
            }

Answer 10

现在CS页面调用的就是这句，参照你的写法：
ClientScript.RegisterStartupScript(this.GetType(),"key","<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");

Answer 11

ClientScript.RegisterStartupScript(this.GetType(),"key","<script language='javascript' defer='defer' >initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");

Answer 12

我把完整代码贴出来吧：
前台JS代码：
<script language="javascript" type="text/javascript">
<!--
//可以打包为js文件;
var x0=0,y0=0,x1=0,y1=0;
var offx=6,offy=6;
var moveable=false;
var hover='orange',normal='slategray';//color;
var index=10000;//z-index;
//开始拖动;
function startDrag(obj)
{
if(event.button==1)
{
//锁定标题栏;
obj.setCapture();
//定义对象;
var win = obj.parentNode;
var sha = win.nextSibling;
//记录鼠标和层位置;
x0 = event.clientX;
y0 = event.clientY;
x1 = parseInt(win.style.left);
y1 = parseInt(win.style.top);
//记录颜色;
normal = obj.style.backgroundColor;
//改变风格;
obj.style.backgroundColor = hover;
win.style.borderColor = hover;
obj.nextSibling.style.color = hover;
sha.style.left = x1 + offx;
sha.style.top  = y1 + offy;
moveable = true;
}
}
//拖动;
function drag(obj)
{
if(moveable)
{
var win = obj.parentNode;
var sha = win.nextSibling;
win.style.left = x1 + event.clientX - x0;
win.style.top  = y1 + event.clientY - y0;
sha.style.left = parseInt(win.style.left) + offx;
sha.style.top  = parseInt(win.style.top) + offy;
}
}
//停止拖动;
function stopDrag(obj)
{
if(moveable)
{
var win = obj.parentNode;
var sha = win.nextSibling;
var msg = obj.nextSibling;
win.style.borderColor     = normal;
obj.style.backgroundColor = normal;
msg.style.color           = normal;
sha.style.left = obj.parentNode.style.left;
sha.style.top  = obj.parentNode.style.top;
obj.releaseCapture();
moveable = false;
}
}
//获得焦点;
function getFocus(obj)
{
if(obj.style.zIndex!=index)
{
index = index + 2;
var idx = index;
obj.style.zIndex=idx;
obj.nextSibling.style.zIndex=idx-1;
}
}
//最小化;
function min(obj)
{
var win = obj.parentNode.parentNode;
var sha = win.nextSibling;
var tit = obj.parentNode;
var msg = tit.nextSibling;
var flg = msg.style.display=="none";
if(flg)
{
win.style.height  = parseInt(msg.style.height) + parseInt(tit.style.height) + 2*2;
sha.style.height  = win.style.height;
msg.style.display = "block";
obj.innerHTML = "0";
}
else
{
win.style.height  = parseInt(tit.style.height) + 2*2;
sha.style.height  = win.style.height;
obj.innerHTML = "2";
msg.style.display = "none";
}
}
//关闭;
function cls(obj)
{
var win = obj.parentNode.parentNode;
var sha = win.nextSibling;
win.style.visibility = "hidden";
sha.style.visibility = "hidden";
}
//创建一个对象;
function xWin(id,w,h,l,t,tit)
{
index = index+2;
this.id      = id;
this.width   = w;
this.height  = h;
this.left    = l;
this.top     = t;
this.zIndex  = index;
this.title   = tit;
this.obj     = null;
this.bulid   = bulid;
this.bulid();
}
//初始化;
function bulid()
{
var str = ""
+ "<div id=xMsg" + this.id + " "
+ "style='"
+ "z-index:" + this.zIndex + ";"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "left:" + this.left + ";"
+ "top:" + this.top + ";"
+ "background-color:" + normal + ";"
+ "color:" + normal + ";"
+ "font-size:10px;"
+ "font-family:Verdana;"
+ "position:absolute;"
+ "cursor:default;"
+ "border:2px solid " + normal + ";"
+ "' "
+ "onmousedown='getFocus(this)'>"
+ "<div "
+ "style='"
+ "background-color:" + normal + ";"
+ "width:" + (this.width-2*2) + ";"
+ "height:20;"
+ "color:white;"
+ "' "
+ "onmousedown='startDrag(this)' "
+ "onmouseup='stopDrag(this)' "
+ "onmousemove='drag(this)' "
+ "ondblclick='min(this.childNodes[1])'"
+ ">"
+ "<span style='width:" + (this.width - 2 * 12 - 4) + ";padding-left:3px;'>" + this.title + "</span>"
+ "</div>"
+ "<div style='"
+ "width:100%;"
+ "height:0;"
+ "background-color:white;"
+ "line-height:14px;"
+ "word-break:break-all;"
+ "'></div>"
+ "</div>"
+ "<div style='"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "top:" + this.top + ";"
+ "left:" + this.left + ";"
+ "z-index:" + (this.zIndex-1) + ";"
+ "position:absolute;"
+ "background-color:black;"
+ "filter:alpha(opacity=40);"
+ "'>by wildwind</div>";
document.body.insertAdjacentHTML("beforeEnd",str);
}
//-->
</script><script language="javascript" defer='defer' type="text/javascript">    function initialize(id, w, h, l, t, tit) {             var a=new xWin(id, w, h, l, t,tit);        }

</script>
后台调用代码：int n=Convert.ToInt32(SQLHelper2.ExecuteScalar(SQLHelper2.ConnectionStringLocalTransaction,CommandType.Text,"select count(*) from Area",null));
            SqlDataReader sdr = SQLHelper2.ExecuteReader(SQLHelper2.ConnectionStringLocalTransaction, CommandType.Text, "select * from Area",null);
            if(sdr.HasRows)
            {
                if(sdr.Read())
                {
                    for(int i=0;i<n;i++)
                    {
                        string s1=sdr["areaid"].ToString();
                        string s2 = sdr["Left"].ToString();
                        string s3 = sdr["Right"].ToString();
                        string s4 = sdr["areaname"].ToString();                        
                        ClientScript.RegisterStartupScript(this.GetType(),"key","<script language='javascript'>initialize('"+s1+"',70,50," + s2 + "," + s3 + ",'" + s4 + "')</script>");
                       
                    }
                }
            }

Answer 13

谢谢，加了defer='defer' ，可以了O(∩_∩)O~

Answer 14

错误的原因http://topic.csdn.net/u/20091217/15/24FBA386-EDA2-436C-995C-766786A71EA0.html