genericfielddefinition.cs

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using Epi;
using Epi.Fields;
using Epi.Data.Services;


namespace Epi.Windows.MakeView.Dialogs.FieldDefinitionDialogs
{

    public partial class GenericFieldDefinition : FieldDefinition 
	{
		#region	Protected Controls
		/// <summary>
		/// 
		/// </summary>
		/// <summary>
		/// 
		/// </summary>
		/// <summary>
		/// 
		/// </summary>
		/// <summary>
		/// 
		/// </summary>

		#endregion	//Protected Controls

		#region	Fields
	
		private string originalPromptText;
		#endregion	//Fields

		#region	Constructors
        /// <summary>
        /// Default Constructor for exclusive use by the designer
        /// </summary>
        public GenericFieldDefinition()
        {
            InitializeComponent();
        }
		/// <summary>
		/// Constructor for the class
		/// </summary>
		public GenericFieldDefinition(MainForm frm) : base(frm)
		{
			InitializeComponent();
		}
		#endregion	Constructors

		#region	Protected Methods
	

		/// <summary>
		/// Validate user input on dialog
		/// </summary>
		protected override bool ValidateDialogInput()
		{
			bool isValid = true;
			if (this.ValidateInput())
			{
				ValidatePromptText();
				ValidateFieldName();
				
				if (ErrorMessages.Count > 0)
				{
					isValid = false;					
				}
			}
			return isValid;
		}

		#endregion	//Protected Methods

		#region Event Handlers

		/// <summary>
		/// Sets the Field Name
		/// </summary>
		/// <param name="sender">Object that fired the event</param>
		/// <param name="e">.NET supplied event args.</param>
		private void txtPrompt_Leave(object sender, System.EventArgs e)
		{
			if (!txtPrompt.Text.Equals(originalPromptText))
			{
				if (!string.IsNullOrEmpty(txtPrompt.Text))
				{
                    txtFieldName.Text = page.GetView().ComposeFieldNameFromPromptText(Util.Squeeze(txtPrompt.Text));
				}
			}
		}

		/// <summary>
		/// Handles the change event for the Field Name textbox
		/// </summary>
		/// <param name="sender">Object that fired the event</param>
		/// <param name="e">.NET supplied event parameters</param>
		private void txtFieldName_TextChanged(object sender, System.EventArgs e)
		{
			btnOk.Enabled = !(string.IsNullOrEmpty(txtFieldName.Text));
		}

		#endregion	//Event Handlers

		#region Private Methods

		/// <summary>
		/// Sets on the focus to the Prompt Text textbox
		/// </summary>
		/// <param name="sender">Object that fired the event.</param>
		/// <param name="e">.NET supplied event args.</param>
		private void GenericFieldDefinition_Load(object sender, System.EventArgs e)
		{
			txtPrompt.Focus();
			originalPromptText = txtPrompt.Text;
		}

		/// <summary>
		/// Validates the prompt text on the dialog
		/// </summary>
		private void ValidatePromptText()
		{
			if (string.IsNullOrEmpty(txtPrompt.Text.Trim()))			
			{
				ErrorMessages.Add(SharedStrings.ENTER_QUESTION_OR_PROMPT);
			}
			//else if (Util.Squeeze(txtPrompt.Text.Trim()).Length > 255)
            else if (txtPrompt.Text.Trim().Length > 255)
			{
				ErrorMessages.Add(SharedStrings.INVALID_PROMPT_TEXT);
			}
		}

		/// <summary>
		/// Validates the field name on the dialog
		/// </summary>
		private void ValidateFieldName()
		{
            txtFieldName.Text = Util.Squeeze(txtFieldName.Text);
			if (string.IsNullOrEmpty(txtFieldName.Text))			
			{
				ErrorMessages.Add(SharedStrings.ENTER_FIELD_NAME);
			}
			else if (!txtFieldName.ReadOnly)
			{
                //if (page.View.Fields.Exists(txtFieldName.Text))
                //{
                //    ErrorMessages.Add(SharedStrings.DUPLICATE_FIELD_NAME);
                //}
				if (AppData.Instance.IsReservedWord(txtFieldName.Text))
				{
					ErrorMessages.Add(SharedStrings.FIELD_NAME_IS_RESERVED);
				}
			}
			//if (txtFieldName.Text.Length > 255)
            if (txtFieldName.Text.Length > 64)
			{
				ErrorMessages.Add(SharedStrings.FIELD_NAME_TOO_LONG);
			}
            if (!Util.RemoveNonAlphaNumericCharacters(txtFieldName.Text).Equals(txtFieldName.Text))
            {
                ErrorMessages.Add(SharedStrings.INVALID_CHARS_IN_FIELD_NAME);
            }
		}
		#endregion Private Methods


	
	}
}