[Débutant] vs2010 gel de l'IHM (form1)

En effet FrameBreak à raison.

Voici un exemple que j'ai fait :

Un form d'attente avec une progressbar juste pour que le client se rende comtpe que l'appli n'a pas planté :

Designer :

Code:

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namespace MyNameSpace
{
    partial class wait
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;
 
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (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.progress_info = new System.Windows.Forms.ProgressBar();
            this.label1 = new System.Windows.Forms.Label();
            this.thread_progress = new System.ComponentModel.BackgroundWorker();
            this.SuspendLayout();
            // 
            // progress_info
            // 
            this.progress_info.Location = new System.Drawing.Point(12, 12);
            this.progress_info.Name = "progress_info";
            this.progress_info.Size = new System.Drawing.Size(283, 23);
            this.progress_info.TabIndex = 0;
            this.progress_info.UseWaitCursor = true;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(59, 47);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(198, 13);
            this.label1.TabIndex = 1;
            this.label1.Text = "Traitement en cours, veuillez patienter ...";
            this.label1.UseWaitCursor = true;
            // 
            // thread_progress
            // 
            this.thread_progress.DoWork += new System.ComponentModel.DoWorkEventHandler(this.thread_progress_DoWork);
            // 
            // wait
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(315, 78);
            this.ControlBox = false;
            this.Controls.Add(this.label1);
            this.Controls.Add(this.progress_info);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "wait";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
            this.Text = "Traitement";
            this.UseWaitCursor = true;
            this.ResumeLayout(false);
            this.PerformLayout();
 
        }
 
        #endregion
 
        private System.Windows.Forms.ProgressBar progress_info;
        private System.Windows.Forms.Label label1;
        private System.ComponentModel.BackgroundWorker thread_progress;
    }
}

.cs

Code:

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
 
namespace MyNameSpace
{
    internal delegate void SetProgressBarDelegateHandler(ProgressBar pgb, int value);
    internal delegate void IncreaseProgressBarDelegateHandler(ProgressBar pgb, int value);
 
    public partial class wait : Form
    {
        private SetProgressBarDelegateHandler SetProgressBarDelegate;
        private IncreaseProgressBarDelegateHandler IncreaseProgressBarDelegate;
 
 
 
        public wait()
        {
            InitializeComponent();
 
            this.SetProgressBarDelegate = new SetProgressBarDelegateHandler(SetProgressBar);
            this.IncreaseProgressBarDelegate = new IncreaseProgressBarDelegateHandler(IncreaseProgressBar);            
 
            thread_progress.RunWorkerAsync();
        }
 
        /// <summary>
        /// Méthode qui augmente la valeur de la ProgressBar
        /// </summary>
        /// <param name="pgb">ProgressBar pour laquelle il faut augmenter la valeur</param>
        /// <param name="value">Valeur à ajouter</param>
        private void IncreaseProgressBar(ProgressBar pgb, int value)
        {
            if (pgb.Value == 100)
                pgb.Value = 0;
 
            pgb.Increment(value);
        }
 
        /// <summary>
        /// Méthode qui assigne la valeur Maximale d'une ProgressBar
        /// </summary>
        /// <param name="pgb">ProgressBar pour laquelle il faut assigner la valeur max</param>
        /// <param name="value">Valeur max de la ProgressBar</param>
        private void SetProgressBar(ProgressBar pgb, int value)
        {
            pgb.Maximum = value;
            pgb.Value = 0;
        }
 
        private void thread_progress_DoWork(object sender, DoWorkEventArgs e)
        {           
                Object pgb = (Object)progress_info;
                Object val = (Object)10;
                Thread.Sleep(250);
                while (true)
                {
                    Thread.Sleep(250);
 
                     try
                     {
                        this.Invoke(IncreaseProgressBarDelegate, pgb, val);
                     }
                     catch (Exception ex) { }
                }
 
        }
    }
}

Dans ton Main :

Code:

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private void bt_genere_Click(object sender, EventArgs e)
        {
            wait win_wait = new wait();
            thread_info.RunWorkerAsync(win_wait);            
            win_wait.ShowDialog();
        }

Code:

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private void thread_info_DoWork(object sender, DoWorkEventArgs e)
        {
            int a = 0;
            while (a <= 1)
            {
                a++;               
                Thread.Sleep(1000);
            }
 
            this.Invoke(CloseFormDelegate, e.Argument);            
        }

Voila, petite subtilité, le thread ferme la fameuse form "wait" une fois le traitement terminé.

N'hésite pas si tu as des questions ;).

En espérant que ça t'aide :ccool: