Winform控件重写

Winform控件重写

因为最近的项目中越来越多的遇到了比较特殊的一些控件，有时候我们自己封装一下可能更加方便我们的使用，下面是我们项目中用到的，简单做一个记录。

TextBox控件重写

主要的控制代码都在WndProc中

只能输入数字，包括小数

 public class FloatNumTextBox : TextBox
    {
        protected override void WndProc(ref Message m)
        {
            int WM_CHAR = 0x0102;
            if (m.Msg == WM_CHAR)
            {
                if (((char)m.WParam >= '0') && ((char)m.WParam <= '9') ||
                (int)m.WParam == (int)Keys.Back || (int)m.WParam == (int)Keys.Delete)
                {
                    base.WndProc(ref m);
                }
            }
            else
            {
                base.WndProc(ref m);
            }
        }
    }

只能输入整数

public class IntNumTextBox :TextBox
    {
        protected override void WndProc(ref Message m)
        {
            int WM_CHAR = 0x0102;
            if (m.Msg == WM_CHAR)
            {
                if (((char)m.WParam >= '0') && ((char)m.WParam <= '9') ||
                (int)m.WParam == (int)Keys.Back)
                {
                    base.WndProc(ref m);
                }
            }
            else
            {
                base.WndProc(ref m);
            }
        }
    }

DataGridFView重写

DataGridView的主要代码是因为有很多的样式不需要再重新设置了，这样可以只修改一处，即可修改整个项目中的所有DataGridView样式的显示，主要的代码起始都是在构造函数中完成

 public class MydataGridview :DataGridView
    {
        public MydataGridview():base()
        {
            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle1 = new System.Windows.Forms.DataGridViewCellStyle();
            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle2 = new System.Windows.Forms.DataGridViewCellStyle();
            System.Windows.Forms.DataGridViewCellStyle dataGridViewCellStyle3 = new System.Windows.Forms.DataGridViewCellStyle();
            this.AutoGenerateColumns = false;
            this.AllowUserToAddRows = false;
            this.AllowUserToDeleteRows = false;
            this.AllowUserToResizeColumns = false;
            this.AllowUserToResizeRows = false;
            dataGridViewCellStyle1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(245)))), ((int)(((byte)(243)))), ((int)(((byte)(244)))));
            this.AlternatingRowsDefaultCellStyle = dataGridViewCellStyle1;
            this.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;
            this.BackgroundColor = System.Drawing.Color.White;
            this.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
            this.ColumnHeadersBorderStyle = System.Windows.Forms.DataGridViewHeaderBorderStyle.Single;
            dataGridViewCellStyle2.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleCenter;
            dataGridViewCellStyle2.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(241)))), ((int)(((byte)(241)))), ((int)(((byte)(241)))));
            dataGridViewCellStyle2.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            dataGridViewCellStyle2.ForeColor = System.Drawing.Color.Navy;
            dataGridViewCellStyle2.SelectionBackColor = System.Drawing.SystemColors.Highlight;
            dataGridViewCellStyle2.SelectionForeColor = System.Drawing.SystemColors.HighlightText;
            this.ColumnHeadersDefaultCellStyle = dataGridViewCellStyle2;
            this.ColumnHeadersHeight = 25;
            this.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
            dataGridViewCellStyle3.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleLeft;
            dataGridViewCellStyle3.BackColor = System.Drawing.SystemColors.Window;
            dataGridViewCellStyle3.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            dataGridViewCellStyle3.ForeColor = System.Drawing.SystemColors.ControlText;
            dataGridViewCellStyle3.SelectionBackColor = System.Drawing.Color.FromArgb(((int)(((byte)(173)))), ((int)(((byte)(214)))), ((int)(((byte)(237)))));
            dataGridViewCellStyle3.SelectionForeColor = System.Drawing.SystemColors.ControlText;
            dataGridViewCellStyle3.WrapMode = System.Windows.Forms.DataGridViewTriState.False;
            this.DefaultCellStyle = dataGridViewCellStyle3;
            this.EnableHeadersVisualStyles = false;
            this.GridColor = System.Drawing.Color.FromArgb(((int)(((byte)(236)))), ((int)(((byte)(233)))), ((int)(((byte)(216)))));
            this.Location = new System.Drawing.Point(3, 17);
            
            this.RowHeadersVisible = false;
            this.RowTemplate.Height = 23;
            this.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
            this.Size = new System.Drawing.Size(870, 354);
            
        }
    }