Asp.net实用技巧（2）

王朝asp·作者佚名 2006-01-10

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1. 在Asp.net实用技巧（1）中提到了如何刷新父页面，那么如果要刷新父页面的父页面的父页面了？那就是刷新祖先页面RefreshAncestorPage。

RefreshAncestorPage#region RefreshAncestorPage

/**//// <summary>

/// 刷新指定的祖先页面，注意是"祖先页面"

/// </summary>

public static void RefreshAncestorPage(HttpResponse Response ,string targetPageTitle ,bool isCloseCurPage)//targetPageTitle 目标页面的title

{

StringBuilder scriptString = new StringBuilder();

scriptString.Append("<script language = javascript>");

scriptString.Append("var p = window ;");

scriptString.Append(string.Format("while(p.document.title != '{0}')" ,targetPageTitle));

scriptString.Append("{");

scriptString.Append("p = p.opener ;");

scriptString.Append("}");

scriptString.Append("p.focus();");

scriptString.Append("p.refresh();");

if (isCloseCurPage )

{

scriptString.Append( " window.focus();" );

scriptString.Append( " window.opener=null;" );

scriptString.Append( " window.close(); " );

}

scriptString.Append("</"+"script>");

Response.Write(scriptString.ToString());

}

/**//*

需要在Father页面的html中添加如下脚本（在Header中）：

function refresh()

{

this.location = this.location;

}

</script>

#endregion

2.如何刷新祖先页面中的某个frame中的page了？

RefreshFrameInAncestorPage#region RefreshFrameInAncestorPage

/**//// <summary>

/// 刷新指定的祖先页面中的某个框架的内部页面

/// </summary>

public static void RefreshFrameInAncestorPage(HttpResponse Response ,string ancestorTitle ,string frameName ,string targetUrl ,bool isCloseCurPage)//targetPageTitle 目标页面的title

{

StringBuilder scriptString = new StringBuilder();

scriptString.Append("<script language = javascript>");

scriptString.Append("var p = window ;");

scriptString.Append(string.Format("while(p.document.title != '{0}')" ,ancestorTitle));

scriptString.Append("{");

scriptString.Append("p = p.opener ;");

scriptString.Append("}");

scriptString.Append("p.focus();");

scriptString.Append(string.Format("p.{0}.location = '{1}';" ,frameName, targetUrl));

if (isCloseCurPage )

{

scriptString.Append( " window.focus();" );

scriptString.Append( " window.opener=null;" );

scriptString.Append( " window.close(); " );

}

scriptString.Append("</"+"script>");

Response.Write(scriptString.ToString());

}

#endregion

3.如何刷新本页面中的其它框架了？

RefreshTargetFrameInSamePage#region RefreshTargetFrameInSamePage

/**//// <summary>

/// 从某一框架刷新同一页面中的任意一框架（包括自己所处的框架）

/// </summary>

public static void RefreshTargetFrameInSamePage(HttpResponse Response ,string frameName ,string targetUrl)

{

string scripStr = string.Format("<script language ='javascript'> window.parent.{0}.location= '" ,frameName) +targetUrl + "'";

scripStr += "</"+"script>" ;

Response.Write(scripStr) ;

}

#endregion

4.如何调用祖先页面的脚本？

CallAncestorScriptMethod#region CallAncestorScriptMethod

/**//// <summary>

/// 调用祖先页面中的某个框架内部page的脚本，如果是调用祖先页面的脚本，targetFrameName传入null

/// </summary>

public static void CallAncestorScriptMethod(HttpResponse Response ,string targetPageTitle ,string targetFrameName ,string methodName ,string[] paraStrs)

{

StringBuilder scriptString = new StringBuilder();

scriptString.Append("<script language = javascript>");

scriptString.Append("var p = window ;");

scriptString.Append(string.Format("while(p.document.title != '{0}')" ,targetPageTitle));

scriptString.Append("{");

scriptString.Append("p = p.opener ;");

scriptString.Append("}");

if(targetFrameName != null)

{

if(paraStrs == null)

{

scriptString.Append(string.Format("p.frames['{0}'].{1}() ;" ,targetFrameName ,methodName ));

}

else

{

string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;

for(int i=1 ;i<paraStrs.Length ;i++)

{

rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;

}

scriptString.Append(string.Format("p.frames['{0}'].{1}({2}) ;" ,targetFrameName ,methodName ,rParaStr));

}

else

{

if(paraStrs == null)

{

scriptString.Append(string.Format("p.{0}() ;" ,methodName ));

}

else

{

string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;

for(int i=1 ;i<paraStrs.Length ;i++)

{

rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;

}

scriptString.Append(string.Format("p.{0}({1}) ;" ,methodName ,rParaStr));

}

scriptString.Append("</"+"script>");

Response.Write(scriptString.ToString());

}

#endregion

5.如何调用本页面中其它框架page的脚本？

CallTargetFrameScriptMethodInSamePage#region CallTargetFrameScriptMethodInSamePage

/**//// <summary>

/// 调用本页面中其它框架内部page的脚本，

/// </summary>

public static void CallTargetFrameScriptMethodInSamePage(HttpResponse Response ,string targetFrameName ,string methodName ,string[] paraStrs)

{

StringBuilder scriptString = new StringBuilder();

scriptString.Append("<script language = javascript>");

if(paraStrs == null)

{

scriptString.Append(string.Format("window.parent.{0}.{1}() ; ;" ,targetFrameName ,methodName));

}

else

{

string rParaStr = string.Format("'{0}'" ,paraStrs[0]) ;

for(int i=1 ;i<paraStrs.Length ;i++)

{

rParaStr += string.Format(", '{0}'" ,paraStrs[i]) ;

}

scriptString.Append(string.Format("window.parent.{0}.{1}({2}) ; ;" ,targetFrameName ,methodName ,rParaStr));

}

scriptString.Append("</"+"script>");

Response.Write(scriptString.ToString());

}

#endregion

可见上述这些功能都是通过脚本完成的，如果对脚本不熟悉，是不可能做好Web开发的！