securebb-win-demos/XML Signer (WinForms)/referencesform.cs

using System.Windows.Forms;
using nsoftware.SecureBlackbox;

namespace nsoftware.Demos
{
	/// <summary>
	/// Summary description for ReferencesForm.
	/// </summary>
	public class ReferencesForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.ListBox lbReferences;
		private System.Windows.Forms.Button btnAdd;
		private System.Windows.Forms.Button btnDelete;
		private System.Windows.Forms.Button btnEdit;
		private System.Windows.Forms.Button btnClose;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public ReferenceForm frmReference;

        private XMLReferenceList FReferences = null;

        public ReferencesForm(XMLReferenceList references)
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			frmReference = new ReferenceForm();

            FReferences = references;
        }

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
					frmReference.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.lbReferences = new System.Windows.Forms.ListBox();
            this.btnAdd = new System.Windows.Forms.Button();
            this.btnDelete = new System.Windows.Forms.Button();
            this.btnEdit = new System.Windows.Forms.Button();
            this.btnClose = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // lbReferences
            // 
            this.lbReferences.Location = new System.Drawing.Point(10, 10);
            this.lbReferences.Name = "lbReferences";
            this.lbReferences.Size = new System.Drawing.Size(188, 212);
            this.lbReferences.TabIndex = 0;
            // 
            // btnAdd
            // 
            this.btnAdd.Location = new System.Drawing.Point(210, 10);
            this.btnAdd.Name = "btnAdd";
            this.btnAdd.Size = new System.Drawing.Size(75, 25);
            this.btnAdd.TabIndex = 1;
            this.btnAdd.Text = "Add";
            this.btnAdd.Click += new System.EventHandler(this.btnAdd_Click);
            // 
            // btnDelete
            // 
            this.btnDelete.Location = new System.Drawing.Point(210, 80);
            this.btnDelete.Name = "btnDelete";
            this.btnDelete.Size = new System.Drawing.Size(75, 25);
            this.btnDelete.TabIndex = 2;
            this.btnDelete.Text = "Delete";
            this.btnDelete.Click += new System.EventHandler(this.btnDelete_Click);
            // 
            // btnEdit
            // 
            this.btnEdit.Location = new System.Drawing.Point(210, 45);
            this.btnEdit.Name = "btnEdit";
            this.btnEdit.Size = new System.Drawing.Size(75, 25);
            this.btnEdit.TabIndex = 3;
            this.btnEdit.Text = "Edit";
            this.btnEdit.Click += new System.EventHandler(this.btnEdit_Click);
            // 
            // btnClose
            // 
            this.btnClose.DialogResult = System.Windows.Forms.DialogResult.OK;
            this.btnClose.Location = new System.Drawing.Point(210, 197);
            this.btnClose.Name = "btnClose";
            this.btnClose.Size = new System.Drawing.Size(75, 25);
            this.btnClose.TabIndex = 4;
            this.btnClose.Text = "Close";
            // 
            // ReferencesForm
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.CancelButton = this.btnClose;
            this.ClientSize = new System.Drawing.Size(294, 231);
            this.Controls.Add(this.btnClose);
            this.Controls.Add(this.btnEdit);
            this.Controls.Add(this.btnDelete);
            this.Controls.Add(this.btnAdd);
            this.Controls.Add(this.lbReferences);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.Name = "ReferencesForm";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
            this.Text = "References";
            this.ResumeLayout(false);

		}
		#endregion

		private void btnEdit_Click(object sender, System.EventArgs e)
		{
			if (lbReferences.SelectedIndex >= 0)
			{
				frmReference.Initialize(FReferences[lbReferences.SelectedIndex]);
				if (frmReference.ShowDialog() == DialogResult.OK)
				{
                    int k = lbReferences.SelectedIndex;
                    // recreating a reference, to completely clear it
                    FReferences.RemoveAt(k);
                    FReferences.Insert(k, new XMLReference());

                    frmReference.UpdateReference(FReferences[k]);

                    UpdateReferences();
                }
			}
		}

        private void UpdateReferences()
        {
            lbReferences.Items.Clear();
            for (int i = 0; i < FReferences.Count; i++)
            {
                string Id = FReferences[i].ID;
                string s = FReferences[i].URI;
                if (string.IsNullOrEmpty(s))
                    s = FReferences[i].TargetXMLElement;

                if (string.IsNullOrEmpty(s))                
                {
                    if ((FReferences[i].TargetData == null) || (FReferences[i].TargetData.Length == 0))
                        s = "#document";
                    else
                        s = "#data";
                }

                if (!string.IsNullOrEmpty(Id))
					s = Id + " - " + s;

				lbReferences.Items.Add(s);
			}
		}

		private void btnAdd_Click(object sender, System.EventArgs e)
		{
            XMLReference Ref = new XMLReference();

            frmReference.Initialize(Ref);
            if (frmReference.ShowDialog() == DialogResult.OK)
            {
                frmReference.UpdateReference(Ref);
                FReferences.Add(Ref);

                UpdateReferences();
            }
		}

		private void btnDelete_Click(object sender, System.EventArgs e)
		{
            if (lbReferences.SelectedIndex >= 0)
            {
                FReferences.RemoveAt(lbReferences.SelectedIndex);

                UpdateReferences();
            }
		}
	}
}