鼠标按下事件仅触发一次 [英] Mouse down event fires only once

问题描述

鼠标向下事件在窗口应用程序中仅工作一次，应该每次都工作
我的代码如下所示，请帮助我...

Mouse down event Working only once in window application ,it should be worked each and every time
My codes are given below please help me...

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 DynamicForm.Resources;

using Infragistics.Win.UltraWinEditors;

namespace DynamicForm
{
    public partial class FormDesigner : Form
    {
        ControlTypes ControlToDraw { get; set; }
        List<control> ControlCollections = new List<control>();

        public FormDesigner()
        {
            InitializeComponent();
           
        }
       
        private void btnDrawTextBox_Click(object sender, EventArgs e)
        {
            ControlToDraw = DynamicForm.ControlTypes.TextField;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            ControlToDraw = ControlTypes.ComboBoxField;
        }

        private void ctrLabel_Click(object sender, EventArgs e)
        {
            ControlToDraw = DynamicForm.ControlTypes.LabelField;
        }

        private void ctrlCheckBox_Click(object sender, EventArgs e)
        {
            ControlToDraw = DynamicForm.ControlTypes.CheckField;
        }

        private void ctrlOptionBox_Click(object sender, EventArgs e)
        {
            ControlToDraw = DynamicForm.ControlTypes.OptionField;
        }

        private void ctrlButton_Click(object sender, EventArgs e)
        {
            ControlToDraw = DynamicForm.ControlTypes.ButtonField;
        }

        private void FormDesigner_Click(object sender, EventArgs e)
        {
            if (this.PointToClient(MousePosition).Y < 130) return;

            switch (ControlToDraw)
            {
                case ControlTypes.None:
                    break;
                case ControlTypes.TextBox:
                    TextBox textBox = new TextBox();
                    textBox.Location = this.PointToClient(MousePosition);
                    textBox.Size = new Size(100, 24);
                    textBox.MouseDown += DynamicControl_MouseDown;
                    textBox.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(textBox);
                    dragControl1.SelectedControl = textBox;
                    break;
                case ControlTypes.TextField:
                    TextField textField = new TextField();
                    textField.Location = this.PointToClient(MousePosition);
                    textField.MouseDown += DynamicControl_MouseDown;
                    textField.MouseUp += DynamicControl_MouseUp;

                    //test
                    //UltraTextEditor xx = (UltraTextEditor)textField.Controls[0];                   
                    //xx.MouseDown += textBox_MouseDown;
                    //xx.MouseUp += textBox_MouseUp;
                    //testend

                    this.Controls.Add(textField);
                    dragControl1.SelectedControl = textField;
                    if (ControlCollections.Count() == 0)
                    {
                        textField.FieldName = "Text Field " + 0;
                        this.Controls.Add(textField);
                        dragControl1.SelectedControl = textField;
                    }
                    else
                    {
                        textField.FieldName = "Text Field " + int.Parse(ControlCollections.Count().ToString());
                        this.Controls.Add(textField);
                        dragControl1.SelectedControl = textField;
                    }
                    ControlCollections.Add(dragControl1.SelectedControl);
                    break;
                case ControlTypes.ComboBoxField:
                    ComboBox comboBox = new ComboBox();
                    comboBox.Location = this.PointToClient(MousePosition);
                    comboBox.Size = new Size(100, 24);
                    comboBox.MouseDown += DynamicControl_MouseDown;
                    comboBox.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(comboBox);
                    dragControl1.SelectedControl = comboBox;
                    break;

                case ControlTypes.LabelField:
                    LabelField label = new LabelField();
                    label.Location = this.PointToClient(MousePosition);
                    //label.Size = new Size(100, 24);
                    label.MouseDown += DynamicControl_MouseDown;
                    label.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(label);
                    dragControl1.SelectedControl = label;
                    break;

                case ControlTypes.CheckField:
                    CheckField check = new CheckField();
                    check.Location = this.PointToClient(MousePosition);
                    //check.Size = new Size(100, 24);
                    check.MouseDown += DynamicControl_MouseDown;
                    check.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(check);
                    dragControl1.SelectedControl = check;
                    break;

                case ControlTypes.OptionField:
                    OptionField option = new OptionField();
                    option.Location = this.PointToClient(MousePosition);
                    //option.Size = new Size(100, 24);
                    option.MouseDown += DynamicControl_MouseDown;
                    option.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(option);
                    dragControl1.SelectedControl = option;
                    break;

                case ControlTypes.ButtonField:
                    ButtonField button = new ButtonField();
                    button.Location = this.PointToClient(MousePosition);
                    //button.Size = new Size(100, 24);
                    button.MouseDown += DynamicControl_MouseDown;
                    button.MouseUp += DynamicControl_MouseDown;
                    this.Controls.Add(button);
                    dragControl1.SelectedControl = button;
                    break;


                default:
                    break;
            }
            ControlToDraw = ControlTypes.None;
            dragControl1.DesignMode(true);
        }

private void DynamicControl_MouseDown(object sender, EventArgs e)
{
    for (int i = 0; i < ControlCollections.Count(); i++)
    {
        if (ControlCollections[i] == dragControl1.SelectedControl)
        {
            ControlCollections[i].BackColor = ColorTranslator.FromHtml("#C3C3C3");
        }
        else
        {
            ControlCollections[i].BackColor = ColorTranslator.FromHtml("#F0F0F0");
        }

    }
    switch (dragControl1.SelectedControl.GetType().Name)
    {

        case "TextBox":
            TextBox textBox = ((TextBox)dragControl1.SelectedControl);
            txtWidth.Text = textBox.Width.ToString();
            txtLeft.Text = textBox.Left.ToString();
            txtTop.Text = (textBox.Top - 130).ToString();
            break;

        case "TextField":
            TextField textField = ((TextField)dragControl1.SelectedControl);
            txtWidth.Text = textField.Width.ToString();
            txtLeft.Text = textField.Left.ToString();
            txtTop.Text = (textField.Top - 130).ToString();

            break;

        case "ComboBoxField":
            ComboBoxField comboBox = ((ComboBoxField)dragControl1.SelectedControl);
            txtWidth.Text = comboBox.Width.ToString();
            txtLeft.Text = comboBox.Left.ToString();
            txtTop.Text = (comboBox.Top - 130).ToString();
            break;

        case "LabelField":
            LabelField label = ((LabelField)dragControl1.SelectedControl);
            txtWidth.Text = label.Width.ToString();
            txtLeft.Text = label.Left.ToString();
            txtTop.Text = (label.Top - 130).ToString();
            break;

        case "CheckField":
            CheckField check = ((CheckField)dragControl1.SelectedControl);
            txtWidth.Text = check.Width.ToString();
            txtLeft.Text = check.Left.ToString();
            txtTop.Text = (check.Top - 130).ToString();
            break;

        case "OptionField":
            OptionField option = ((OptionField)dragControl1.SelectedControl);
            txtWidth.Text = option.Width.ToString();
            txtLeft.Text = option.Left.ToString();
            txtTop.Text = (option.Top - 130).ToString();
            break;

        case "ButtonField":
            ButtonField button = ((ButtonField)dragControl1.SelectedControl);
            txtWidth.Text = button.Width.ToString();
            txtLeft.Text = button.Left.ToString();
            txtTop.Text = (button.Top - 130).ToString();
            break;

        default:
            break;
    }
}

       private void DynamicControl_MouseUp(object sender, EventArgs e)
        {
            FormDesigner zz = new FormDesigner();
            int item = zz.Size.Width;
            if (dragControl1.SelectedControl != null)
            {
                if (dragControl1.SelectedControl.Left < 10)
                    dragControl1.SelectedControl.Left = 10;
                if (dragControl1.SelectedControl.Top < 130)
                    dragControl1.SelectedControl.Top = 140;
                if (dragControl1.SelectedControl.Left > item)
                    dragControl1.SelectedControl.Left = item - 20;
                //if (dragControl1.SelectedControl.Right >800)
                //    dragControl1.SelectedControl.Right = 600;


                for (int i = 0; i < ControlCollections.Count(); i++)
                {
                    if (ControlCollections[i] == dragControl1.SelectedControl)
                    {
                        ControlCollections[i].BackColor = ColorTranslator.FromHtml("#C3C3C3");
                    }
                    else
                    {
                        ControlCollections[i].BackColor = ColorTranslator.FromHtml("#F0F0F0");
                    }

                }

                switch (dragControl1.SelectedControl.GetType().Name)
                {
                    case "TextBox":
                        TextBox textBox = ((TextBox)dragControl1.SelectedControl);
                        txtWidth.Text = textBox.Width.ToString();
                        txtLeft.Text = textBox.Left.ToString();
                        txtTop.Text = (textBox.Top - 130).ToString();
                        break;

                    case "TextField":
                        TextField textField = ((TextField)dragControl1.SelectedControl);
                        txtWidth.Text = textField.Width.ToString();
                        txtLeft.Text = textField.Left.ToString();
                        txtTop.Text = (textField.Top - 130).ToString();
                        break;

                    case "ComboBoxField":
                        ComboBoxField comboBox = ((ComboBoxField)dragControl1.SelectedControl);
                        txtWidth.Text = comboBox.Width.ToString();
                        txtLeft.Text = comboBox.Left.ToString();
                        txtTop.Text = (comboBox.Top - 130).ToString();
                        break;

                    case "LabelField":
                        LabelField label = ((LabelField)dragControl1.SelectedControl);
                        txtWidth.Text = label.Width.ToString();
                        txtLeft.Text = label.Left.ToString();
                        txtTop.Text = (label.Top - 130).ToString();
                        break;

                    case "CheckField":
                        CheckField check = ((CheckField)dragControl1.SelectedControl);
                        txtWidth.Text = check.Width.ToString();
                        txtLeft.Text = check.Left.ToString();
                        txtTop.Text = (check.Top - 130).ToString();
                        break;

                    case "OptionField":
                        OptionField option = ((OptionField)dragControl1.SelectedControl);
                        txtWidth.Text = option.Width.ToString();
                        txtLeft.Text = option.Left.ToString();
                        txtTop.Text = (option.Top - 130).ToString();
                        break;

                    case "ButtonField":
                        ButtonField button = ((ButtonField)dragControl1.SelectedControl);
                        txtWidth.Text = button.Width.ToString();
                        txtLeft.Text = button.Left.ToString();
                        txtTop.Text = (button.Top - 130).ToString();
                        break;

                    default:
                        break;
                }
            }
        }

        private void panel1_MouseEnter(object sender, EventArgs e)
        {
            dragControl1.DesignMode(false);
        }

        private void panel1_MouseLeave(object sender, EventArgs e)
        {
            dragControl1.DesignMode(true);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            switch (dragControl1.SelectedControl.GetType().Name)
            {
                case "TextBox":
                    TextBox textBox = ((TextBox)dragControl1.SelectedControl);
                    textBox.Width = Convert.ToInt32(txtWidth.Text);
                    textBox.Left = Convert.ToInt32(txtLeft.Text);
                    textBox.Top = Convert.ToInt32(txtTop.Text) + 130;
                    break;
                case "ComboBox":
                    ComboBox comboBox = ((ComboBox)dragControl1.SelectedControl);
                    comboBox.Width = Convert.ToInt32(txtWidth.Text);
                    comboBox.Left = Convert.ToInt32(txtLeft.Text);
                    comboBox.Top = Convert.ToInt32(txtTop.Text) + 130;
                    break;
                default:
                    break;
            }
        }

        private void FormDesigner_Load(object sender, EventArgs e)
        {
            //Dragmethod(sender, e, "down");
            //textBox.MouseDown += new MouseEventHandler(textBox_MouseDown);
            //this.Controls.Contains(textBox);
        }

        private void txtCaption_TextChanged(object sender, EventArgs e)
        {

            switch (dragControl1.SelectedControl.GetType().Name)
            {

                case "LabelField":
                    ((LabelField)dragControl1.SelectedControl).FieldTitle = txtCaption.Text;
                    break;

                case "CheckField":
                    ((CheckField)dragControl1.SelectedControl).FieldTitle = txtCaption.Text;
                    break;

                case "ButtonField":
                    ((ButtonField)dragControl1.SelectedControl).FieldTitle = txtCaption.Text;
                    break;

                case "OptionField":
                    ((OptionField)dragControl1.SelectedControl).DisplayText = txtCaption.Text;
                    break;

                default:
                    break;
            }
        }

        private void txtLeft_TextChanged(object sender, EventArgs e)
        {
            try
            {
                dragControl1.SelectedControl.Left = Convert.ToInt32(txtLeft.Text);
            }
            catch { }
        }

        private void txtTop_TextChanged(object sender, EventArgs e)
        {
            try
            {
                dragControl1.SelectedControl.Top = Convert.ToInt32(txtTop.Text) + 130;
            }
            catch { }
        }

        private void txtWidth_TextChanged(object sender, EventArgs e)
        {
            try
            {
                dragControl1.SelectedControl.Width = Convert.ToInt32(txtWidth.Text);
            }
            catch { }
        }

        private void txtTop_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Up)
                txtTop.Text = (Convert.ToInt32(txtTop.Text) + 1).ToString();
            if (e.KeyCode == Keys.Down)
            {
                if (txtTop.Text == "0") return;
                txtTop.Text = (Convert.ToInt32(txtTop.Text) - 1).ToString();
            }
        }

        private void txtName_ValueChanged(object sender, EventArgs e)
        {
            switch (dragControl1.SelectedControl.GetType().Name)
            {
                case "TextField":
                    ((TextField)dragControl1.SelectedControl).FieldName = txtName.Text;
                    break;
                case "LabelField":
                    ((LabelField)dragControl1.SelectedControl).FieldName = txtName.Text;
                    break;
                case "CheckField":
                    ((CheckField)dragControl1.SelectedControl).FieldName = txtName.Text;
                    break;
                case "OptionField":
                    ((OptionField)dragControl1.SelectedControl).FieldName = txtName.Text;
                    break;
                case "ButtonField":
                    ((ButtonField)dragControl1.SelectedControl).FieldName = txtName.Text;
                    break;
                default:
                    break;

            }
        }

        public IEnumerable<control> GetAll(Control control, Type type)
        {
            var controls = control.Controls.Cast<control>();

            return controls.SelectMany(ctrl => GetAll(ctrl, type))
                                      .Concat(controls)
                                      .Where(c => c.GetType() == type);
        }

        public IEnumerable<control> GetAllControls(DragControl control)
        {
            var controls = control.Controls.Cast<dragcontrol>();

            return controls.SelectMany(ctrl => GetAllControls(ctrl)
                                      .Concat(controls));
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            var collect = GetAll(this, dragControl1.SelectedControl.GetType());
            foreach (var item in collect)
            {
                if (dragControl1.SelectedControl == item)
                {
                    this.Controls.Remove(item);
                    ControlCollections.Remove(item);
                }
            }
        }

        #region test

        private static void Dragmethod(object sender, MouseEventArgs e, string str)
        {
            new DragControl(sender, e, str);
        }
        
        void textBox_MouseMove(object sender, MouseEventArgs e)
        {
            Dragmethod(sender, e, "move");
        }       

        void textBox_MouseUp(object sender, MouseEventArgs e)
        {
            Dragmethod(sender, e, "up");
        }

        void textBox_MouseDown(object sender, MouseEventArgs e)
        {
            Dragmethod(sender, e, "down");
            //((UltraTextEditor)(sender)).MouseDown += textBox_MouseDown;
        }  

        #endregion test
    }

    public enum ControlTypes
    {
        None,
        TextBox,
        TextField,
        ComboBoxField,
        LabelField,
        CheckField,
        OptionField,
        ButtonField
    }
}

推荐答案

Insetad在集合中循环，请使用sender对象.

Insetad looping through the collection, use sender object.

Control ctr = (control)sender;
ctr.BackColor = ...

有关更多信息，请参见以下内容:
处理和引发事件 [如何:在不使用Control.Name属性的情况下确定事件的发件人 [ ^ ]
Control.BackColor属性 [

For further information see these:
Handling and Raising Events[^]
HOW TO: Determine the Sender of an Event Without Using the Control.Name Property[^]
Control.BackColor Property[^]

这篇关于鼠标按下事件仅触发一次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！