wild card

[howdy]

I'm converting over from VB6 and what I want to do seems like it should be really easy, but I'm having trouble... this is part of my program, looking for a way to pull images from a directory and I need to be able to use wildcards to search... can someone please help??

here is my code ->

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace WindowsApplication10
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Label label1;
		private System.Data.OleDb.OleDbCommand oleDbSelectCommand1;
		private System.Data.OleDb.OleDbCommand oleDbInsertCommand1;
		private System.Data.OleDb.OleDbCommand oleDbUpdateCommand1;
		private System.Data.OleDb.OleDbCommand oleDbDeleteCommand1;
		private System.Data.OleDb.OleDbDataAdapter oleDbDataAdapter1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

	
		public Form1()
		{
		
			
			//filename = textBox1;

			//
			// 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()
		{
			System.Configuration.AppSettingsReader configurationAppSettings = new System.Configuration.AppSettingsReader();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.button1 = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.oleDbSelectCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbInsertCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbUpdateCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbDeleteCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbDataAdapter1 = new System.Data.OleDb.OleDbDataAdapter();
			this.SuspendLayout();
			// 
			// pictureBox1
			// 
			this.pictureBox1.Location = new System.Drawing.Point(24, 80);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(256, 192);
			this.pictureBox1.TabIndex = 0;
			this.pictureBox1.TabStop = false;
			// 
			// textBox1
			// 
			this.textBox1.AcceptsReturn = ((bool)(configurationAppSettings.GetValue("textBox1.AcceptsReturn", typeof(bool))));
			this.textBox1.Location = new System.Drawing.Point(16, 32);
			this.textBox1.MaxLength = ((int)(configurationAppSettings.GetValue("textBox1.MaxLength", typeof(int))));
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(104, 20);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "textBox1";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(168, 16);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(88, 48);
			this.button1.TabIndex = 2;
			this.button1.Text = "button1";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(104, 40);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(96, 48);
			this.label1.TabIndex = 3;
			this.label1.Text = "label1";
			// 
			// oleDbDataAdapter1
			// 
			this.oleDbDataAdapter1.DeleteCommand = this.oleDbDeleteCommand1;
			this.oleDbDataAdapter1.InsertCommand = this.oleDbInsertCommand1;
			this.oleDbDataAdapter1.SelectCommand = this.oleDbSelectCommand1;
			this.oleDbDataAdapter1.UpdateCommand = this.oleDbUpdateCommand1;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox1);
			this.Controls.Add(this.pictureBox1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]		
		
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{

			string txt = textBox1.Text;
			textBox1.MaxLength=5;
		pictureBox1.Image = 
				new Bitmap(@"c:\images\" + % + txt + % + ".jpg");
					}		
		
	}
}

-----------------------------------------------------------------------------------------------------------------


I see that % doesn't work as a wild card like I had hoped... I tried the following, but really no idea how to integrate of if it is correct...


string titleKeyword = "%" + txtTitleKeyword.Text + "%";
this.OleDbDataAdapter1.SelectCommand.Parameters[1].Value = titleKeyword;
this.OleDbDataAdapter1.SelectCommand.Parameters["Title_Keyword"].Value = titleKeyword

[axion_sa]

Hmm, totally wrong tree. You're looking for the System.IO.DirectoryInfo class; it has a method - "GetFiles" - that accepts a parameter. You use this to search for files; the usual wildcards apply (*, ?).

On to your code:
string txt = textBox1.Text;
You only really need to use a local variable for a property when you access it more than once. This is somewhat inefficient.

textBox1.MaxLength=5;
You can declaratively set this - use the Properties window in your designer.

pictureBox1.Image = new Bitmap(@"c:\images\" + % + txt + % + ".jpg");
This should give you compiler errors; syntactically incorrect.
Also, you will find that you'll get a FileNotFoundException as the Bitmap search will, in all probability, search for a specific file.

What exactly are you looking to do here?

[howdy]

pictureBox1.Image = new Bitmap(@"c:\images\" + % + txt + % + ".jpg");
This should give you compiler errors; syntactically incorrect.
Also, you will find that you'll get a FileNotFoundException as the Bitmap search will, in all probability, search for a specific file.

What exactly are you looking to do here?

I'm really just trying to learn c# so I can eventually move my Vb6 image viewing program to c#... I am trying to figure out the code for this portion of pulling images from an image folder using wild cards (%), which maybe needs to be * from what you are saying, but I tried that also with no luck.

searching folder:
c:\images\
for image files:

so it will pull up images with OKAY in the string (just as an example).. where OKAY is the text input...
jlsjlfdsldsdflsldfjOKAYjslfdslsldfjl.jpg
jsljOKAYjljsd.jpg

[axion_sa]

System.IO.DirectoryInfo.GetFiles(string)