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//------------------------------------------------------------------------------
// <copyright file="ProfileParameter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.WebControls {
using System;
using System.ComponentModel;
using System.Data;
/// <devdoc>
/// Represents a Parameter that gets its value from the user's profile data.
/// </devdoc>
[
DefaultProperty("PropertyName"),
]
public class ProfileParameter : Parameter {
/// <devdoc>
/// Creates an instance of the ProfileParameter class.
/// </devdoc>
public ProfileParameter() {
}
/// <devdoc>
/// Creates an instance of the ProfileParameter class with the specified parameter name and profile property.
/// </devdoc>
public ProfileParameter(string name, string propertyName) : base(name) {
PropertyName = propertyName;
}
/// <devdoc>
/// Creates an instance of the ProfileParameter class with the specified parameter name, type, and profile property.
/// </devdoc>
public ProfileParameter(string name, TypeCode type, string propertyName) : base(name, type) {
PropertyName = propertyName;
}
/// <devdoc>
/// Creates an instance of the ProfileParameter class with the specified parameter name, database type, and
/// profile property.
/// </devdoc>
public ProfileParameter(string name, DbType dbType, string propertyName)
: base(name, dbType) {
PropertyName = propertyName;
}
/// <devdoc>
/// Used to clone a parameter.
/// </devdoc>
protected ProfileParameter(ProfileParameter original) : base(original) {
PropertyName = original.PropertyName;
}
/// <devdoc>
/// The name of the Profile property to get the value from.
/// </devdoc>
[
DefaultValue(""),
WebCategory("Parameter"),
WebSysDescription(SR.ProfileParameter_PropertyName),
]
public string PropertyName {
get {
object o = ViewState["PropertyName"];
if (o == null)
return String.Empty;
return (string)o;
}
set {
if (PropertyName != value) {
ViewState["PropertyName"] = value;
OnParameterChanged();
}
}
}
/// <devdoc>
/// Creates a new ProfileParameter that is a copy of this ProfileParameter.
/// </devdoc>
protected override Parameter Clone() {
return new ProfileParameter(this);
}
/// <devdoc>
/// Returns the updated value of the parameter.
/// </devdoc>
protected internal override object Evaluate(HttpContext context, Control control) {
if (context == null || context.Profile == null) {
return null;
}
return DataBinder.Eval(context.Profile, PropertyName);
}
}
}
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