((BindableObject)ddlCtrlFile.SelectedItem).IntValue == (int)PluginTypes.Generic_XML
using System;
using System.Collections;
namespace Xanthos.Common.Tools {
public class BindableObject {
public const string TEXT = "Text";
public const string VALUE = "Value";
private string m_strText = "";
private int m_strValue = 0;
public string Text { get { return m_strText; } }
public string Value { get { return m_strValue.ToString(); } }
public int IntValue { get { return m_strValue; } }
public BindableObject(int intValue, string strText) {
m_strValue = intValue;
m_strText = strText;
}
}
/// <summary>
/// Defines a nicer format for EnumBinder texts.
/// </summary>
public enum StringPrint {
/// <summary>No change to the enum text.</summary>
None = 0x01,
/// <summary>Replaces underscores with blanks in the enum text.</summary>
Underscores = 0x02,
/// <summary>Inserts a blank in front on uppercase letters in the enum text.</summary>
CamelCase = 0x04
}
public class StringHelper {
/// <summary>
/// Inserts a blank in front of each uppercase letter preceded by a lowercase letter.
/// </summary>
/// <param name="str">Input string in "CamelCase".</param>
/// <returns>Output string not in "Camel Case" anymore.</returns>
public static string SplitCamelCase(string str) {
return SplitCamelCase(str, ' ');
}
/// <summary>
/// Inserts a separator in front of each uppercase letter preceded by a lowercase letter.
/// </summary>
/// <param name="str">Input string in "CamelCase".</param>
/// <param name="sep">Separator character to insert ('_' for instance).</param>
/// <returns>Output string not in "Camel_Case" anymore.</returns>
public static string SplitCamelCase(string str, char sep) {
if (str.Length < 1) return str;
string ret = str[0].ToString();
for (int i = 1; i < str.Length; i++) {
if (char.IsUpper(str[i]) && char.IsLower(str[i - 1]))
ret += sep.ToString();
ret += str[i].ToString();
}
return ret;
}
}
public class EnumBinder {
/// <summary>
/// Binds a Windows Forms ListControl (drop down list) with an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
public static void DataBind(System.Windows.Forms.ListControl objListControl, Type objEnumType) {
DataBind(objListControl, objEnumType, Enum.GetValues(objEnumType), StringPrint.None);
}
/// <summary>
/// Binds a Windows Forms ListControl (drop down list) with an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="style">An Element of the Xanthos.Common.Tools.StringPrint defining the way how the Text value will look.</param>
public static void DataBind(System.Windows.Forms.ListControl objListControl, Type objEnumType, StringPrint style) {
DataBind(objListControl, objEnumType, Enum.GetValues(objEnumType), style);
}
/// <summary>
/// Binds a Windows Forms ListControl (drop down list) with a subset of an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="objValues">Array containing the values to display.</param>
public static void DataBind(System.Windows.Forms.ListControl objListControl, Type objEnumType, Array objValues) {
DataBind(objListControl, objEnumType, objValues, StringPrint.None);
}
/// <summary>
/// Binds a Windows Forms ListControl (drop down list) with a subset of an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="objValues">Array containing the values to display.</param>
/// <param name="style">An Element of the Xanthos.Common.Tools.StringPrint defining the way how the Text value will look.</param>
public static void DataBind(System.Windows.Forms.ListControl objListControl, Type objEnumType, Array objValues, StringPrint style) {
ArrayList objBindObjects = new ArrayList();
// loop through each value
foreach (int nValue in objValues) {
string str = Enum.GetName(objEnumType, nValue);
if (Convert.ToBoolean(StringPrint.Underscores & style)) str = str.Replace('_', ' ');
if (Convert.ToBoolean(StringPrint.CamelCase & style)) str = StringHelper.SplitCamelCase(str);
// add the current enum details as a bindable object
objBindObjects.Add(new BindableObject(nValue, str));
}
// bind up
objListControl.DataSource = null;
objListControl.DisplayMember = BindableObject.TEXT;
objListControl.ValueMember = BindableObject.VALUE;
objListControl.DataSource = objBindObjects;
}
}
public class WebEnumBinder {
// this cannot be in the same class as the System.Windows.Forms.ListControl DataBind,
// since a webproject doesn't want to include a reference to System.Windows.
/// <summary>
/// Binds a WebControls ListControl (combo box) with an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="style">An Element of the Xanthos.Common.Tools.StringPrint defining the way how the Text value will look.</param>
public static void DataBind(System.Web.UI.WebControls.ListControl objListControl, Type objEnumType) {
DataBind(objListControl, objEnumType, Enum.GetValues(objEnumType), StringPrint.None);
}
/// <summary>
/// Binds a WebControls ListControl (combo box) with an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="style">An Element of the Xanthos.Common.Tools.StringPrint defining the way how the Text value will look.</param>
public static void DataBind(System.Web.UI.WebControls.ListControl objListControl, Type objEnumType, StringPrint style) {
DataBind(objListControl, objEnumType, Enum.GetValues(objEnumType), style);
}
/// <summary>
/// Binds a WebControls ListControl (combo box) with a subset of an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="objValues">Array containing the values to display.</param>
public static void DataBind(System.Web.UI.WebControls.ListControl objListControl, Type objEnumType, Array objValues) {
DataBind(objListControl, objEnumType, objValues, StringPrint.None);
}
/// <summary>
/// Binds a WebControls ListControl (combo box) with a subset of an enumeration.
/// Code example: EnumBinder.DataBind(ddlLogType, typeof(Xanthos.Common.LogEntryType));
/// Caution! To set the selected value programmatically: ddlLogType.SelectedValue = ((int)LogEntryType.Information).ToString()
/// </summary>
/// <param name="objListControl">Your list control you want to fill the values.</param>
/// <param name="objEnumType">Type of enumeration which is the source for the list control.</param>
/// <param name="objValues">Array containing the values to display.</param>
/// <param name="style">An Element of the Xanthos.Common.Tools.StringPrint defining the way how the Text value will look.</param>
public static void DataBind(System.Web.UI.WebControls.ListControl objListControl, Type objEnumType, Array objValues, StringPrint style) {
ArrayList objBindObjects = new ArrayList();
// loop through each value
foreach (int nValue in objValues) {
string str = Enum.GetName(objEnumType, nValue);
if (Convert.ToBoolean(StringPrint.Underscores & style)) str = str.Replace('_', ' ');
if (Convert.ToBoolean(StringPrint.CamelCase & style)) str = StringHelper.SplitCamelCase(str);
// add the current enum details as a bindable object
objBindObjects.Add(new BindableObject(nValue, str));
}
// bind up
objListControl.DataSource = null;
objListControl.DataTextField = BindableObject.TEXT; // this line changes compared to System.Windows.Forms
objListControl.DataValueField = BindableObject.VALUE; // this line changes compared to System.Windows.Forms
objListControl.DataSource = objBindObjects;
objListControl.DataBind(); // this line changes compared to System.Windows.Forms
}
}
}
Copyright Open Source Institute, 2006 