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HttpCapabilitiesBase.SupportsQueryStringInFormAction Property

Gets a value indicating whether the browser supports a query string in the action attribute value of HTML <form> elements.

Namespace:  System.Web.Configuration
Assembly:  System.Web (in System.Web.dll)

public virtual bool SupportsQueryStringInFormAction { get; }

Property Value

Type: System.Boolean
true if the browser supports a query string in the action attribute value of HTML <form> elements; otherwise, false. The default is true.

If false, query string parameters are sent, in postback data, as HTML <input> elements with the type attributes set to hidden.

The following code example shows how to determine whether the browser supports a query string in the value for the action attribute of HTML <form> elements.

<%@ page language="C#"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    void Page_Load(Object Sender, EventArgs e)
    {
        CheckBrowserCaps();
    }

    void CheckBrowserCaps()
    {
        String labelText = "";
        System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
        if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).SupportsQueryStringInFormAction)
        {
            labelText = "Browser supports a query string in the value for the ACTION attribute of HTML FORM elements.";
        }
        else
        {
            labelText = "Browser does not support a query string in the value for the ACTION attribute of HTML FORM elements.";
        }

        Label1.Text = labelText;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>Browser Capabilities Sample</title>
</head>
<body>
    <form runat="server" id="form1">
        <div>
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />
        </div>
    </form>
</body>
</html>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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