Passing a string value from c# file to js file

I am trying to pass a string value from c# file to js file.

If I try to pass an int value, then I can pass it, but I am unable to pass string value.

string value = "abc";
 int a=5;
 TableCell.Attributes.Add("onclick", "F1("+value +")"); //NOTHING HAPPENS
 TableCell.Attributes.Add("onclick", "F1("+a +")"); //Works Perfectly

js file

function F1(value) {
    alert(value);
}
Jon Skeet
people
quotationmark

Consider what your HTML will look like.

First version:

onclick="F1(abc)"

Second version:

onclick="F1(5)"

Clearly the second version is passing the value 5. The first version is passing the value of abc - whatever that is, within the context of the Javascript you're executing.

You could quote the string, making sure that you escape quotes etc - I'm assuming that in reality, your value is fetched dynamically from somewhere, and you might not have much control over the content. Hopefully there's something within whatever ASP.NET version you're using that will let you do that, such as HttpUtility.JavaScriptStringEncode.

For example, to get the string abc in your call, you want the attribute to be:

onclick="F1('abc')"

but if to get the string I don't know in your call, you want the attribute to be:

onclick="F1('I don\'t know')"

The key is to look at the generated HTML - pretend you're the browser, and look at the world from its perspective. Once you've worked out what HTML you want to generate, writing the code to do so is often relatively simple.

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