一个自动动态播放图片的类（downmoon）

第一步：创建一个类clsTurnPicture

增加方法如下：

/// <summary>

/// 播放图片类(downmoon)

/// </summary>

/// <param name="arrImgName">arrImgName</param>

/// <param name="arrDesc">arrDesc</param>

/// <param name="strShopName">strShopName</param>

/// <param name="strBrandName">strBrandName</param>

/// <param name="strResoourceCode">strResoourceCode</param>

/// <param name="ScrWidth">ScrWidth</param>

/// <param name="ScrHeight">ScrHeight</param>

/// <param name="PicWidth">PicWidth</param>

/// <param name="PicHeight">PicHeight</param>

/// <param name="TextHeight">TextHeight</param>

/// <param name="ToolBarHeight">ToolBarHeight</param>

/// <param name="FontSize">默认为16,px</param>

/// <returns></returns>

public string getPicsForHtml(ArrayList arrImgName,ArrayList arrDesc,string strShopName,string strBrandName,string strResoourceCode,int ScrWidth,int ScrHeight,int PicWidth,int PicHeight,int TextHeight,int ToolBarHeight,int FontSize)

{

StringBuilder sb = new StringBuilder();

string strHtml="";

if(arrImgName==null) return "" ;

ArrayList ar1=new ArrayList(arrImgName);

ArrayList ar2=new ArrayList(arrDesc);

int len=ar1.Count;

int len2=ar1.Count-1;

int len3=ToolBarHeight-2;

string str1="";

string str2="";

//strHtm+=@" <html><head><title>Buynow{0}-{1}-{2}图片信息</title>

strHtml=@"<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.0 Transitional//EN"" ><HTML><HEAD><title>"+ strShopName+"-"+strBrandName+"-"+"席位："+strResoourceCode+ "-外观展示图"+

@"</title>

sb.Append(strHtml);

sb.Append("<script language=JavaScript>"+"\r\n");

sb.Append("<!-- Begin"+System.Environment.NewLine);

sb.Append("var interval = 6; // delay between rotating images (in seconds)"+System.Environment.NewLine);

sb.Append("interval *= 1000;"+System.Environment.NewLine);

sb.Append("var flagtime=0;"+System.Environment.NewLine);

sb.Append("var image_index = -1;"+System.Environment.NewLine);

sb.Append("image_list = new Array();"+System.Environment.NewLine);

sb.Append("note_list = new noteArray("+len2.ToString()+")"+System.Environment.NewLine);

sb.Append("var number_of_image = image_list.length;"+System.Environment.NewLine);

sb.Append("var timesnum=0; "+System.Environment.NewLine);

//strHtml=string.Format(strHtml,len.ToString());

string strTemp="";

for(int k=0;k<ar1.Count;k++)

{

strTemp=ar1[k].ToString();

//strHtm+=" image_list[k] = new imageItem(\"+strTemp+\")";

str1+=" image_list["+k.ToString()+"] = new imageItem(\""+strTemp+"\")"+";\r\n";

}

sb.Append(""+System.Environment.NewLine);

for(int k=0;k<ar2.Count;k++)

{

strTemp=strShopName+"-"+strBrandName+"-"+strResoourceCode+"-"+ar2[k].ToString();

str2+=" note_list["+k.ToString()+"] = \""+strTemp+"\""+";\r\n";

}

sb.Append(str1);

sb.Append(str2);

sb.Append("function noteArray(size)"+System.Environment.NewLine);

sb.Append("{"+System.Environment.NewLine);

sb.Append("this.length=size;"+System.Environment.NewLine);

sb.Append("for(i=1;i<=size;i++)"+System.Environment.NewLine);

sb.Append("{"+System.Environment.NewLine);

sb.Append(@"this[i]="""""+System.Environment.NewLine);

sb.Append(" }"+System.Environment.NewLine);

sb.Append("return this;"+System.Environment.NewLine);

sb.Append("}"+System.Environment.NewLine);

sb.Append("function counternum()"+System.Environment.NewLine);

sb.Append("{"+System.Environment.NewLine);

sb.Append("if( timesnum < "+len2.ToString()+")"+System.Environment.NewLine);

sb.Append("{"+System.Environment.NewLine);

sb.Append(" timesnum++;"+System.Environment.NewLine);

sb.Append(@"//document.all.slide_ent.src=""about:blank"";");

sb.Append(System.Environment.NewLine);

sb.Append(@"//document.all.slide_ent.src=""about:blank"";");

sb.Append(System.Environment.NewLine);

sb.Append(" }"+System.Environment.NewLine);

sb.Append("}"+System.Environment.NewLine);

sb.Append(@"function run(obj)

{

interval=obj.options[obj.selectedIndex].value*1000;

rotateImage();

}");

sb.Append(@"function stop()

{

interval=0;

}

function previous()

{

var new_image = getPreviousImage();

document[""rImage""].src = new_image;

}

function next()

{

var new_image = getNextImage();

document[""rImage""].src = new_image;

}

function imageItem(image_location)

{

this.image_item = new Image();

this.image_item.src = image_location;

}

function noteItem(note)

{

this.note_item = new Image();

this.note_item.src = note;

}

function get_ImageItemLocation(imageObj)

{

return(imageObj.image_item.src)

}

function get_NoteItemLocation(noteObj)

{

return(noteObj.note_item.src)

}

function generate(x, y)

{

var range = y - x + 1;

return Math.floor(Math.random() * range) + x;

}");

sb.Append(@"function getPreviousImage()

{

image_index = image_index-1;

if (image_index < 0)

{");

sb.Append("image_index=image_index+"+len.ToString()+";");

sb.Append(@"}

var new_image = get_ImageItemLocation(image_list[image_index]);

document.all.span_1.innerText=image_index+1;

document.all.summary.innerText=note_list[image_index];

return(new_image);");

sb.Append(System.Environment.NewLine+"}");

sb.Append(@"function getNextImage()

{

image_index = image_index+1;

");

sb.Append("if (image_index >= "+len.ToString()+")");

sb.Append(System.Environment.NewLine);

sb.Append(@"{");

sb.Append(System.Environment.NewLine);

sb.Append("image_index=image_index-"+len.ToString()+";");

sb.Append(System.Environment.NewLine);

sb.Append("}");

sb.Append(System.Environment.NewLine);

//sb.Append(@"");

sb.Append(@"var new_image = get_ImageItemLocation(image_list[image_index]);

document.all.span_1.innerText=image_index+1;

document.all.summary.innerText=note_list[image_index];

return(new_image);");

sb.Append(System.Environment.NewLine+"}");

strHtml=@"

function rotateImage()

{

if (interval == 0)

{

return 1;

}

if (flagtime == 1)

{

var now = new Date();

var time1 = now.getTime();

var time2;

time1=time1+3000;

time2=now.getTime();

while(time2 < time1)

{

now = new Date();

time2=now.getTime();

}

flagtime=0;

}

var new_image = getNextImage();

document['rImage'].src = new_image;

var recur_call = ""rotateImage('""+'rImage'+""')"";

setTimeout(recur_call,interval);

}

// End -->

</script>

sb.Append(strHtml);

strHtml=@"</HEAD><body topmargin=""0"" leftmargin=""0""><form name=""frmDispImage"">";

sb.Append(strHtml);

strHtml=@"

<table bgcolor='#fff2df' border='0' cellpadding='0' cellspacing='0' width='"

+ScrWidth.ToString()+@"'>

</tr>

</tbody></table>

<table border='0' cellpadding='0' cellspacing='0' height='"+

PicHeight.ToString()+"' width='"+PicWidth.ToString()+@"' align='center'>

<td align='center'><img name=""rImage"" src='"+

ar1[0].ToString()+"' width='"+PicWidth+"' height='"+PicHeight+@"' onload=""counternum();"" border='0'></td>

</tr>

</tbody></table>

<td id=""summary"" align='center' height='"+

TextHeight.ToString()+"' style='font-size:"+FontSize.ToString()+"pt;'>"

+strShopName+"-"+strBrandName+"-"+strResoourceCode+"-"+ar2[0].ToString()+@"</td>

</tr>

</tbody></table>

</tr>

<tr>

<td class='sbody' align='center' height='"+len3.ToString()+"'><font style='font-size:"+FontSize+"pt;'><span id='span_1'>1</span>/"+len.ToString()+

  <img src='Resource/Image/TurnImage/slideshows_bottom_3.gif' alt='前一张' onclick=""previous();"" align='absmiddle' border='0' height='21' width='35'>  <img src='Resource/Image/TurnImage/slideshows_bottom_4.gif' alt='后一张' onclick=""next();"" align='absmiddle' border='0' height='21' width='35'>  速度：

</select></font></td>

</tr>

</tbody></table>

</td>

</tr>

<tr>

</tr>

</tbody></table>

</td>

</tr>

</tbody></table>

</center>

flagtime=1;

</script>

</center>";

sb.Append(strHtml);

sb.Append("</form></body></HTML>");

return sb.ToString();

}

调用格式：

//// ArrayList ar1=new ArrayList();

//// ar1.Clear();

//// ar1.Add("http://downmoon-hgh/RichChartServer/Top30/frmForumDisplayImage.aspx?id=160720060328095407");

//// ar1.Add("http://downmoon-hgh/RichChartServer/Top30/frmForumDisplayImage.aspx?id=160420060327085709");

//// ar1.Add("http://downmoon-hgh/RichChartServer/Top30/frmForumDisplayImage.aspx?id=160420060327091030");

//// ar1.Add("http://downmoon-hgh/RichChartServer/Top30/frmForumDisplayImage.aspx?id=160420060327092445");

////

//// drawPic(ar1);

if(this.ar1==null || ar1.Count==0 )

{

// this.MsgBox("该席位/资源无外观图！");

// this.CloseWebForm();

return ;

}

else

{

drawPic(ar1);

}

private void drawPic(ArrayList arrImages)

{

if(pic==null)

{

pic=new clsTurnPicture();

}

int i;

ArrayList ar2=new ArrayList();

ar2.Clear();

for(int k=0;k<arrImages.Count;k++)

{ i=k+1;

ar2.Add("展示图"+i.ToString());

}

Response.Write(pic.getPicsForHtml(arrImages,ar2,CurrShopName,CurBrandName,strResourceCode,1024,768,1022,640,36,34,16));

}