[dba-VB] ASP.NET - pass data from .cs to .js

Hi Gustav --

That tip could help

http://www.palladiumconsulting.com/blog/sebastian/2007/04/ultimate-intranet-toy.html

Did you find it already?

The above tip code explains how WebBrowser control's currently loaded web page .js code can invoke hosting WinForm .cs code...

Thank you.

-- Shamil


Wed 21 Nov 2012 17:39:29 от "Gustav Brock" <gustav at cactus.dk>:
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>Hi all
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I have an ASP.NET winform project (.aspx) with a code-behind .cs file and an
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included .js file for client side code.
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The client side code is nothing special, only that it minimizes the
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round-trip to the server which I found slowed down the page when run on a
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smart-phone with GSM data link (not WiFi).
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How can I pass data from the .cs code to the .js code?
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Right now I write some client side script at Page_Load:
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<c#>
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private void RegisterScripts()
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{
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    // Output the reference to the .js file.
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    Page.ClientScript.RegisterClientScriptInclude(this.GetType(), "jScript",
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"/ClientScript.js");
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    // Output the variables.
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    StringBuilder sb = new StringBuilder();
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    sb.Append("<script type=\"text/javascript\"
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language=\"javascript\">\n");
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    sb.AppendFormat("var optionsOne = new
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Array(\"{0}\",\"{1}\",\"{2}\");\n", optionsAll[0,0], optionsAll[0,1],
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optionsAll[0,2]);
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    sb.AppendFormat("var optionsTwo = new
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Array(\"{0}\",\"{1}\",\"{2}\");\n", optionsAll[1,0], optionsAll[1,1],
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optionsAll[1,2]);
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    sb.AppendFormat("var optionsThree = new
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Array(\"{0}\",\"{1}\",\"{2}\");\n", optionsAll[2,0], optionsAll[2,1],
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optionsAll[2,2]);
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    sb.AppendFormat("var answerComments = new Array(\"{0}\",\"{1}\");\n",
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answerComments[0], answerComments[1]);
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    sb.AppendFormat("var alertEnterEmail = \"{0}\";\n", alertEnterEmail);
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    sb.Append("</script>\n");
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    Page.ClientScript.RegisterClientScriptBlock(GetType(), "fillOptions",
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sb.ToString());
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}
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</c#>
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This works fine and dandy as the data (the arrays and variables) are static
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during a session (but not between sessions) as these are retrieved once from
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the database also at Page_Load.
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But the scriptblock is visible at client side if the user selects "View
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source" in the browser and I would prefer it not to be.
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Also, the method of writing code lines from code seems sort of primitive to
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me.
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Would there be a better/easier/smarter way?
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/gustav
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