How do we define a variable in web.config file and make use of the same in Javascript code?
I made a try assigning key value pair but seems its not working!
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Could you show us some code as to how you've tried to assign it?Bas Peeters– Bas Peeters2014-11-19 10:25:29 +00:00Commented Nov 19, 2014 at 10:25
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possible duplicate of Reading web.config from JavaScriptDave R.– Dave R.2015-02-26 13:51:17 +00:00Commented Feb 26, 2015 at 13:51
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2 Answers
You should pass the variable from the web.config to the JS file via the code-behind. For example, let's say your variable is named my-variable. Your web.config should be like this :
<configuration>
<appSettings>
<add key="my-variable" value="my-value" />
</appSettings>
</configuration>
Your aspx file can get it and send it to JS like this :
protected void Page_Load(object sender, EventArgs e) {
ClientScriptManager csm = Page.ClientScript;
Type cstype = this.GetType();
string myVariable = ConfigurationManager.AppSettings["my-variable"].ToString();
// Add a script for the current page just before the end tag </form>
csm.RegisterStartupScript(cstype,
"InitVariable",
String.Format("window.myVariable = '{0}';", myVariable, true);
}
And then for any JS, you can use this variable myVariable.
Comments
It is not possible to directly read from the web.config in Javascript. The web.config is only available server side, while Javascript will run client side.
