Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / BaseAutoFormat.cs / 1 / BaseAutoFormat.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.Design.WebControls { using System.ComponentModel; using System.Data; using System.Design; using System.Diagnostics; using System.Reflection; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Util; using System.Globalization; internal class BaseAutoFormat : DesignerAutoFormat { private const char PERSIST_CHAR = '-'; private const char OM_CHAR = '.'; private DataRow _schemeData; public BaseAutoFormat(DataRow schemeData) : base(SR.GetString(schemeData["SchemeName"].ToString())) { _schemeData = schemeData; } public override void Apply(Control control) { foreach (DataColumn column in _schemeData.Table.Columns) { string propertyName = column.ColumnName; // The SchemeName is the name of the AutoFormat Scheme, and should not be applied // to the Control. if (String.Equals(propertyName, "SchemeName", StringComparison.Ordinal)) { continue; } else if (propertyName.EndsWith("--ClearDefaults", StringComparison.Ordinal)) { if (_schemeData[propertyName].ToString().Equals("true", StringComparison.OrdinalIgnoreCase)) { ClearDefaults(control, propertyName.Substring(0, propertyName.Length - 15)); } } else { SetPropertyValue(control, propertyName, _schemeData[propertyName].ToString()); } } } private void ClearDefaults(Control control, string propertyName) { InstanceAndPropertyInfo propInstance = GetMemberInfo(control, propertyName); if (propInstance.PropertyInfo != null && propInstance.Instance != null) { // found a public property object property = propInstance.PropertyInfo.GetValue(propInstance.Instance, null); Type currentType = property.GetType(); currentType.InvokeMember("ClearDefaults", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod | BindingFlags.IgnoreCase, null, property, new object[] {}, System.Globalization.CultureInfo.InvariantCulture); } } // private static InstanceAndPropertyInfo GetMemberInfo(Control control, string name) { Type currentType = control.GetType(); PropertyInfo propInfo = null; object instance = control; object nextInstance = control; string mappedName = name.Replace(PERSIST_CHAR,OM_CHAR); int startIndex = 0; while (startIndex < mappedName.Length) { // parse thru dots of object model to locate PropertyInfo string propName; int index = mappedName.IndexOf(OM_CHAR, startIndex); if (index < 0) { propName = mappedName.Substring(startIndex); startIndex = mappedName.Length; } else { propName = mappedName.Substring(startIndex, index - startIndex); startIndex = index + 1; } BindingFlags flags = BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static | BindingFlags.IgnoreCase; try { propInfo = currentType.GetProperty(propName, flags); } catch (AmbiguousMatchException) { flags |= BindingFlags.DeclaredOnly; propInfo = currentType.GetProperty(propName, flags); } if (propInfo != null) { // found a public property currentType = propInfo.PropertyType; if (nextInstance != null) { instance = nextInstance; nextInstance = propInfo.GetValue(instance, null); } } } return new InstanceAndPropertyInfo(instance, propInfo); } protected void SetPropertyValue(Control control, string propertyName, string propertyValue) { object typedPropertyValue = null; // Find the right property InstanceAndPropertyInfo iapi = GetMemberInfo(control, propertyName); PropertyInfo pi = iapi.PropertyInfo; Debug.Assert(pi != null, String.Format(CultureInfo.CurrentCulture, "Property '{0}' does not exist on control of type '{1}'", propertyName, control.GetType())); // Find a type converter TypeConverter converter = null; // See if the property itself has a type converter associated with it TypeConverterAttribute attr = Attribute.GetCustomAttribute(pi, typeof(TypeConverterAttribute), true) as TypeConverterAttribute; if (attr != null) { Type converterType = Type.GetType(attr.ConverterTypeName, false); if (converterType != null) { converter = (TypeConverter)(Activator.CreateInstance(converterType)); } } if (converter != null && converter.CanConvertFrom(typeof(string))) { typedPropertyValue = converter.ConvertFromInvariantString(propertyValue); } else { // Then see if there is a converter from string on the type itself converter = TypeDescriptor.GetConverter(pi.PropertyType); if (converter != null && converter.CanConvertFrom(typeof(string))) { typedPropertyValue = converter.ConvertFromInvariantString(propertyValue); } } pi.SetValue(iapi.Instance, typedPropertyValue, null); } private struct InstanceAndPropertyInfo { public object Instance; public PropertyInfo PropertyInfo; public InstanceAndPropertyInfo(object instance, PropertyInfo propertyInfo) { Instance = instance; PropertyInfo = propertyInfo; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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