后台调用前台JS方法

jnhcd 2009-05-12 05:42:49
后台代码是：


            while (dr.Read())

            {

                string top, left, width, height,userName;

                top = dr.GetString(0);

                left = dr.GetString(1);

                width = dr.GetString(2);

                height = dr.GetString(3);

                userName = dr.GetString(4);



                string strScript = "<script language='JavaScript'> add(" + top + "," + left + "," + width + "," + height + "," + userName + "); </script>";

                ClientScript.RegisterStartupScript(this.GetType(), "add", strScript);

            }


前台的JS代码是：


<script type="text/javascript">

    function add(var y, var x, var w, var h, var username) {

        alert('the method of add has been used! ');

	    var top = parseInt(y);

	    var left = parseInt(x);

	    var width = parseInt(w);

	    var height = parseInt(h);

	    var text = username;

	    var div = document.createElement("div");

    	

	    div.style.position = 'absolute';

	    div.style.top = top + 'px';

	    div.style.left = left + 'px';

	    div.style.width = width + 'px';

	    div.style.height = height + 'px';

	    div.style.margin=0;

	    div.style.padding=0;

	    div.style.float='left';

	    div.style['line-width'] = width + 'px';

	    div.style['line-height'] = height + 'px';

	    div.style.border = '1px solid #7d7d7d';

	    document.getElementById("bigdiv").appendChild(div);

    }

</script>


为什么怎么都没用啊？
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jnhcd 2009-05-13
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-12 把JS写在后台早已经可以实现了。。。

-16 strScript我改这样了，但是没有把add方法改一下，你这种方法可以调用了。谢谢
echoxue 2009-05-12
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function add(var y, var x, var w, var h, var username)
改为：－>
function add(y, x, w, h, username)
echoxue 2009-05-12
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while (dr.Read())
{
string top, left, width, height,userName;
top = dr.GetString(0);
left = dr.GetString(1);
width = dr.GetString(2);
height = dr.GetString(3);
userName = dr.GetString(4);

string strScript = "<script language='JavaScript'> add(" + top + "," + left + "," + width + "," + height + "," + userName + "); </script>";
ClientScript.RegisterStartupScript(this.GetType(), "add", strScript);
}
string strScript = "<script language='JavaScript'> add(" + top + "," + left + "," + width + "," + height + "," + userName + "); </script>";
->改为

string strScript = "<script language='JavaScript'> add('" + top + "','" + left + "','" + width + "','" + height + "','" + userName + "'); </script>";
echoxue 2009-05-12
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晕啊，第一次看到function还有参数的
function add(y, x, w, h, username)



<script type="text/javascript">

    function add(var y, var x, var w, var h, var username) {

        alert('the method of add has been used! ');

        var top = parseInt(y);

        var left = parseInt(x);

        var width = parseInt(w);

        var height = parseInt(h);

        var text = username;

        var div = document.createElement("div");

        

        div.style.position = 'absolute';

        div.style.top = top + 'px';

        div.style.left = left + 'px';

        div.style.width = width + 'px';

        div.style.height = height + 'px';

        div.style.margin=0;

        div.style.padding=0;

        div.style.float='left';

        div.style['line-width'] = width + 'px';

        div.style['line-height'] = height + 'px';

        div.style.border = '1px solid #7d7d7d';

        document.getElementById("bigdiv").appendChild(div);

    }

</script>
zzxap 2009-05-12
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[code=C#]


while (dr.Read())
{
string top, left, width, height,userName;
top = dr.GetString(0);
left = dr.GetString(1);
width = dr.GetString(2);
height = dr.GetString(3);
userName = dr.GetString(4);



StringBuilder sb = new StringBuilder();
sb.Append("<script language='javascript'>");

sb.Append(" function add(var y, var x, var w, var h, var username) {");
sb.Append("alert('the method of add has been used! ');");
sb.Append(" var top = parseInt(y);");
sb.Append(" var left = parseInt(x);");
sb.Append(" var width = parseInt(w);");
sb.Append(" var height = parseInt(h);");
sb.Append(" var text = username;
sb.Append(" var div = document.createElement("div");

sb.Append(" div.style.position = 'absolute';
sb.Append(" div.style.top = top + 'px';
sb.Append(" div.style.left = left + 'px';
sb.Append(" div.style.width = width + 'px';
sb.Append(" div.style.height = height + 'px';
sb.Append(" div.style.margin=0;");
sb.Append(" div.style.padding=0;");
sb.Append(" div.style.float='left';");
sb.Append("div.style['line-width'] = width + 'px';");
sb.Append(" div.style['line-height'] = height + 'px';");
sb.Append(" div.style.border = '1px solid #7d7d7d';");
sb.Append(" document.getElementById("bigdiv").appendChild(div);");
sb.Append(" }");


sb.Append("add('" + top + "','" + left + "','" + width + "','" + height + "','" + userName + "');");

sb.Append("</script>");
ClientScript.RegisterStartupScript(this,this.GetType(), "LoadPicScript", sb.ToString());

[/CODE]
jnhcd 2009-05-12
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-7 你的根据是什么？看不明白
zzxap 2009-05-12
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[code=C#]


while (dr.Read())
{
string top, left, width, height,userName;
top = dr.GetString(0);
left = dr.GetString(1);
width = dr.GetString(2);
height = dr.GetString(3);
userName = dr.GetString(4);



StringBuilder sb = new StringBuilder();
sb.Append("<script language='javascript'>");

sb.Append(" function add(var y, var x, var w, var h, var username) {");
sb.Append("alert('the method of add has been used! ');");
sb.Append(" var top = parseInt(y);");
sb.Append(" var left = parseInt(x);");
sb.Append(" var width = parseInt(w);");
sb.Append(" var height = parseInt(h);");
sb.Append(" var text = username;
sb.Append(" var div = document.createElement("div");

sb.Append(" div.style.position = 'absolute';
sb.Append(" div.style.top = top + 'px';
sb.Append(" div.style.left = left + 'px';
sb.Append(" div.style.width = width + 'px';
sb.Append(" div.style.height = height + 'px';
sb.Append(" div.style.margin=0;");
sb.Append(" div.style.padding=0;");
sb.Append(" div.style.float='left';");
sb.Append("div.style['line-width'] = width + 'px';");
sb.Append(" div.style['line-height'] = height + 'px';");
sb.Append(" div.style.border = '1px solid #7d7d7d';");
sb.Append(" document.getElementById("bigdiv").appendChild(div);");
sb.Append(" }");


sb.Append("add(" + top + "," + left + "," + width + "," + height + "," + userName + ");");

sb.Append("</script>");
ClientScript.RegisterStartupScript(this,this.GetType(), "LoadPicScript", sb.ToString());

[/CODE]
jnhcd 2009-05-12
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-8 我试了，还是不行。。顺便把其他参数的单引号也加了，也不行。。
ralpha08 2009-05-12
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是不是用ajax了？
jnhcd 2009-05-12
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-4 也不行。。


-2 那样写直接报错。。汗
yangqidong 2009-05-12
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[Quote=引用 5 楼 jnhcd 的回复:]
各位大大，请试了以后再发表，ok？


-2，这个方法哪里有4个参数的？

-3，这句应该没问题，跑出来的结果strScript 为： <script language='JavaScript'> add(0,0,600,600,admin); </script>
[/Quote]

你不觉得应该是这样才对么？
<script language='JavaScript'> add(0,0,600,600,'admin'); </script>
ralpha08 2009-05-12
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int i=0;

 while (dr.Read())

            {

                

                string top, left, width, height,userName;

                top = dr.GetString(0);

                left = dr.GetString(1);

                width = dr.GetString(2);

                height = dr.GetString(3);

                userName = dr.GetString(4);



                string strScript = "<script language='JavaScript'> add(" + top + "," + left + "," + width + "," + height + "," + userName + "); </script>";

                ClientScript.RegisterStartupScript(this.GetType(), "add"+i.ToString(), strScript);

                i++;

            }
jnhcd 2009-05-12
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不好意思，我的语气可能重了点，烦了一下午了。。汗。sorry
jnhcd 2009-05-12
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各位大大，请试了以后再发表，ok？


-2，这个方法哪里有4个参数的？

-3，这句应该没问题，跑出来的结果strScript 为：<script language='JavaScript'> add(0,0,600,600,admin); </script>
蝶恋花雨 2009-05-12
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ClientScript.RegisterStartupScript(this.Page.GetType(), "clientscript", " add(" + top + "," + left + "," + width + "," + height + "," + userName + ");", true);这样试试
yangqidong 2009-05-12
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string strScript = "<script language='JavaScript'> add(" + top + "," + left + "," + width + "," + height + ",'" + userName + "'); </script>";
username前后要有单引号
zzxap 2009-05-12
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ClientScript.RegisterStartupScript(this,this.GetType(), "add", strScript);
jnhcd 2009-05-12
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为什么ClientScript.RegisterStartupScript这个方法不好使啊？晕，求助
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