/* User Interfaces in C#: Windows Forms and Custom Controls by Matthew MacDonald Publisher: Apress ISBN: 1590590457 */ using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace FormatAndParse { /// <summary> /// Summary description for FormatAndParseImage. /// </summary> public class FormatAndParseImage : System.Windows.Forms.Form { internal System.Windows.Forms.GroupBox GroupBox1; internal System.Windows.Forms.PictureBox picProduct; internal System.Windows.Forms.Label Label1; internal System.Windows.Forms.Label lblStatus; internal System.Windows.Forms.ComboBox cboModelName; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public FormatAndParseImage() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.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.GroupBox1 = new System.Windows.Forms.GroupBox(); this.picProduct = new System.Windows.Forms.PictureBox(); this.Label1 = new System.Windows.Forms.Label(); this.lblStatus = new System.Windows.Forms.Label(); this.cboModelName = new System.Windows.Forms.ComboBox(); this.GroupBox1.SuspendLayout(); this.SuspendLayout(); // // GroupBox1 // this.GroupBox1.Controls.AddRange(new System.Windows.Forms.Control[] { this.picProduct}); this.GroupBox1.FlatStyle = System.Windows.Forms.FlatStyle.System; this.GroupBox1.Location = new System.Drawing.Point(12, 52); this.GroupBox1.Name = "GroupBox1"; this.GroupBox1.Size = new System.Drawing.Size(352, 128); this.GroupBox1.TabIndex = 22; this.GroupBox1.TabStop = false; this.GroupBox1.Text = "Display Value for ProductImage"; // // picProduct // this.picProduct.Location = new System.Drawing.Point(16, 24); this.picProduct.Name = "picProduct"; this.picProduct.Size = new System.Drawing.Size(128, 88); this.picProduct.TabIndex = 18; this.picProduct.TabStop = false; // // Label1 // this.Label1.Location = new System.Drawing.Point(20, 20); this.Label1.Name = "Label1"; this.Label1.Size = new System.Drawing.Size(64, 16); this.Label1.TabIndex = 21; this.Label1.Text = "Product:"; // // lblStatus // this.lblStatus.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; this.lblStatus.Dock = System.Windows.Forms.DockStyle.Bottom; this.lblStatus.FlatStyle = System.Windows.Forms.FlatStyle.System; this.lblStatus.ForeColor = System.Drawing.SystemColors.HotTrack; this.lblStatus.Location = new System.Drawing.Point(0, 218); this.lblStatus.Name = "lblStatus"; this.lblStatus.Size = new System.Drawing.Size(388, 24); this.lblStatus.TabIndex = 20; // // cboModelName // this.cboModelName.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList; this.cboModelName.Location = new System.Drawing.Point(84, 16); this.cboModelName.Name = "cboModelName"; this.cboModelName.Size = new System.Drawing.Size(248, 21); this.cboModelName.TabIndex = 19; // // FormatAndParseImage // this.AutoScaleBaseSize = new System.Drawing.Size(5, 14); this.ClientSize = new System.Drawing.Size(388, 242); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.GroupBox1, this.Label1, this.lblStatus, this.cboModelName}); this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); this.Name = "FormatAndParseImage"; this.Text = "FormatAndParseImage"; this.Load += new System.EventHandler(this.FormatAndParseImage_Load); this.GroupBox1.ResumeLayout(false); this.ResumeLayout(false); } #endregion private void FormatAndParseImage_Load(object sender, System.EventArgs e) { DataSet dsStore = new DataSet(); dsStore.ReadXmlSchema(Application.StartupPath + "store.xsd"); dsStore.ReadXml(Application.StartupPath + "store.xml"); cboModelName.DataSource = dsStore.Tables["Products"]; cboModelName.DisplayMember = "ModelName"; Binding pictureBinding = new Binding("Image", dsStore.Tables["Products"], "ProductImage"); pictureBinding.Format += new ConvertEventHandler(FileToImage); pictureBinding.Parse += new ConvertEventHandler(ImageToFile); picProduct.DataBindings.Add(pictureBinding); } private void FileToImage(object sender, ConvertEventArgs e) { if (e.DesiredType == typeof(Image)) { // Store the filename. picProduct.Tag = e.Value; // Look up the corresponding file, and create an Image object. e.Value = Image.FromFile(Application.StartupPath + "" + e.Value); } } private void ImageToFile(object sender, ConvertEventArgs e) { if (e.DesiredType == typeof(string)) { // Substitute the filename. e.Value = picProduct.Tag; } } [STAThread] static void Main() { Application.Run(new FormatAndParseImage()); } } } FormatAndParse.zip( 48 k)