I need to save XML-attribute value in a database, using information if checkbox is checked. If checkbox is checked, the attribute value is "TRUE", otherwise it's false. When I use foreach statement, the last enumerated value is usually assigned.

Here is the part of my code:

XmlAttribute xmlAttribute = xmlDoc.CreateAttribute("BooleanValue");
foreach (string value in list) //list is a List<object>
{
    XmlNode xmlNode = xmlDoc.CreateNode(XmlNodeType.Element, "VALUE", "");
    if (checkBox1.Checked || 
        checkBox2.Checked ||
        checkBox3.Checked)
    xmlAttribute.Value = "TRUE";

    if (!checkBox1.Checked || 
        !checkBox2.Checked ||
        !checkBox3.Checked)
     xmlAttribute.Value = "FALSE";

    xmlNode.Attributes.Append(xmlAttribute);
    xmlNode.InnerText = val;
    childNode.AppendChild(xmlNode);
}

When I run my application, I get an XML attribute xmlAttribute "FALSE" value anyway.

What I need to have: I need to have the following XML:

<ROOT><NODE><VALUE ATTRIBUTE="TRUE">Value 1</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="TRUE">Value 2</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 3</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 4</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="TRUE">Value 5</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 6</VALUE></NODE>
</ROOT>

What I actually get:

<ROOT><NODE><VALUE ATTRIBUTE="FALSE">Value 1</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 2</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 3</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 4</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 5</VALUE></NODE>
      <NODE><VALUE ATTRIBUTE="FALSE">Value 6</VALUE></NODE>
</ROOT>

Because in C# FALSE value is stayed at last position in foreach loop

The question is: how do I do to assign the correct values of my attribute. Thanks