HttpCapabilitiesBase.RequiresAttributeColonSubstitution Property

Reference

Definition

Namespace:: System.Web.Configuration

Assembly:: System.Web.dll

Important

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Gets a value indicating whether the browser requires colons in element attribute values to be substituted with a different character.

public:
 virtual property bool RequiresAttributeColonSubstitution { bool get(); };

public virtual bool RequiresAttributeColonSubstitution { get; }

member this.RequiresAttributeColonSubstitution : bool

Public Overridable ReadOnly Property RequiresAttributeColonSubstitution As Boolean

Property Value

Boolean

true if the browser requires colons in element attribute values to be substituted with a different character; otherwise, false. The default is false.

Examples

The following code example shows how to determine whether the browser requires colons in element attribute values to be substituted with a different character.

ASP.NET (C#)

<%@ 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).RequiresAttributeColonSubstitution)
        {
            labelText = "Browser requires colons in element attributes to be substituted with a different character.";
        }
        else
        {
            labelText = "Browser does not require colons in element attributes to be substituted with a different character.";
        }

        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>

<%@ page language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        CheckBrowserCaps()
    End Sub

    Function CheckBrowserCaps()

        Dim labelText As String = ""
        Dim myBrowserCaps As System.Web.HttpBrowserCapabilities = Request.Browser
        If (CType(myBrowserCaps, System.Web.Configuration.HttpCapabilitiesBase)).RequiresAttributeColonSubstitution Then
            labelText = "Browser requires colons in element attributes to be substituted with a different character."
        Else
            labelText = "Browser does not require colons in element attributes to be substituted with a different character."
        End If

        Label1.Text = labelText

    End Function 'CheckBrowserCaps
</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>

Remarks

Some browsers do not recognize colons in element attribute values. If true, a different character will be substituted on rendering and returned in postback data.

Applies to

Product	Versions
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

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