DataGrid,这个东西真麻烦?????

Question

1.你可以在mouseup事件中编码
2.没用过
3.就是触发doubleclick事件呀。datagrid有这个事件呀

Answer 1

1、你需要通过设置DataGridTableStyle以及里面的DataGridColumnStyle，得到那个Column的TextBox，为他添加一个Click/MouseDown/MouseUp事件2、CurrentCellChanged事件3、同1

Answer 2

using System;
using System.Data;
using System.Drawing;
using System.Windows.Forms;namespace TryScan
{
/// <summary>
/// Class1 的摘要说明。
/// </summary>
internal class Styler
{
//        private int iStart, iLast;
//        private bool bUnselecting;
private Styler()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
        
        static public void ChangeStyle(DataGrid dg)
        {
            ChangeStyle(dg, true, null, null, null);
        }        static public void ChangeStyle(DataGrid dg, bool Selectable)
        {
            ChangeStyle(dg, Selectable, null, null, null);
        }        static public void ChangeStyle(DataGrid dg, bool Selectable, bool[] ReadOnly)
        {
            ChangeStyle(dg, Selectable, ReadOnly, null, null);
        }        static public void ChangeStyle(DataGrid dg, bool Selectable, bool[] ReadOnly, System.ComponentModel.CancelEventHandler[] Validating)
        {
            ChangeStyle(dg, Selectable, ReadOnly, Validating, null);
        }        static public void ChangeStyle(DataGrid dg, bool Selectable, bool[] ReadOnly, System.ComponentModel.CancelEventHandler[] Validating, int[] Width)
        {
            DataGridTableStyle      ts;
            DataGridTextBoxColumn   dgtbc;
            DataSet                 ds;
            DataColumn              dc;
            int                     i, c, d, widthlen;
            bool                    b;
            bool[]                  brs;
            System.ComponentModel.CancelEventHandler[]  cevhs;
            Graphics                g;            b = (dg.TableStyles.Count>0);            if (b) return;            b                       = dg.ReadOnly;
            if (ReadOnly == null)
            {
                ReadOnly    = new bool[1];
                ReadOnly[0] = b;
            }            if (Validating == null)
            {
                Validating = new System.ComponentModel.CancelEventHandler[1];
                Validating[0] = null;
            }            if (dg.DataSource is DataSet)
                ds = (DataSet) dg.DataSource;
            else
                ds = ((DataTable) dg.DataSource).DataSet;            ts                      = new DataGridTableStyle();
            ts.MappingName          = ds.Tables[0].TableName;
            ts.AlternatingBackColor = dg.AlternatingBackColor;
            ts.BackColor            = dg.BackColor;
            ts.ForeColor            = dg.ForeColor;
            ts.GridLineColor        = dg.GridLineColor;
            ts.GridLineStyle        = dg.GridLineStyle;
            ts.HeaderBackColor      = dg.HeaderBackColor;
            ts.HeaderForeColor      = dg.HeaderForeColor;
            ts.LinkColor            = dg.LinkColor;
            ts.ReadOnly             = dg.ReadOnly;
            ts.SelectionBackColor   = dg.SelectionBackColor;
            ts.SelectionForeColor   = dg.SelectionForeColor;            c                       = ds.Tables[0].Columns.Count;            d                       = (c < ReadOnly.Length? ReadOnly.Length: c);
            brs                     = new bool[d];
            ReadOnly.CopyTo(brs, 0);
            for (i = ReadOnly.Length; i < d; i++)
                brs[i] = b;            d                       = (c < Validating.Length? Validating.Length: c);
            cevhs                   = new System.ComponentModel.CancelEventHandler[d];
            Validating.CopyTo(cevhs, 0);            for (i = ReadOnly.Length; i < d; i++)
                cevhs[i] = null;            g   = dg.CreateGraphics();            b   = (Width != null);
            if (b)
                widthlen    = Width.Length;
            else
                widthlen    = 0;            for (i = 0; i < c; i++)
            {
                dgtbc = new DataGridTextBoxColumn();
                dgtbc.TextBox.VisibleChanged += new EventHandler(dgcolumn_VisibleChanged);
                if (cevhs[i] != null)
                    dgtbc.TextBox.Validating += cevhs[i];
                dgtbc.TextBox.Tag = brs[i];
                dc                  = ds.Tables[0].Columns[i];
                if  (dc.Caption != "")
                    dgtbc.HeaderText= dc.Caption;
                else
                    dgtbc.HeaderText= dc.ColumnName;
                dgtbc.MappingName   = dc.ColumnName;
                if (b && (i < widthlen) && Width[i] > 0)
                    dgtbc.Width     = Width[i];
                else
                    dgtbc.Width         = (int) g.MeasureString(dgtbc.HeaderText + "#V#", dg.CaptionFont).Width;
                ts.GridColumnStyles.Add(dgtbc);
            }
            dg.TableStyles.Clear();
            dg.TableStyles.Add(ts);
            if (Selectable) dg.MouseMove += new MouseEventHandler(dg_Mouse);
            dg.Update();
        }        private static void dgcolumn_VisibleChanged(object sender, System.EventArgs e)
        {
            Point   p;
            TextBox t;
            Control c;
            bool    b;            c   = (Control) sender;
            if (c.Visible)
            {
                b   = (bool) c.Tag;
                if (!b) 
                {
                    t           = (TextBox) c;
                    t.ReadOnly  = false;
                    t.CausesValidation = true;
                    return;
                }
                p           = c.Location;
                c.Visible   = false;
                c           = c.Parent;
            
            dgSelectCore(c, new MouseEventArgs(MouseButtons.Left, 1, p.X, p.Y, 0), true); 
            }
        }        private static void dgSelectCore(object sender, System.Windows.Forms.MouseEventArgs e, bool ForceSelect)
        {
            DataGrid dg = (DataGrid) sender;
            int rn, i, tmp;
            if (e.Button == MouseButtons.Left)
            {
                rn  = dg.HitTest(e.X, e.Y).Row;
                if (rn<0) return;
                i   = dg.CurrentCell.RowNumber;                System.Diagnostics.Debug.WriteLine("rn = " + rn.ToString() + ", i = " + i.ToString() + ", ForceSelected = " + ForceSelect.ToString() + ", IsSelected = " + dg.IsSelected(i).ToString());                if ((rn == i) && !ForceSelect)
                {
                    rn  = 0;
                    tmp = 0;
                    try
                    {
                        for ( ; ; rn++)
                            if (dg.IsSelected(rn) && (i != rn)) break;
                        
                        for ( ; ; rn++)
                            if (i != rn)
                                dg.UnSelect(rn);                    }
                    catch{}
                }
                else if (dg.IsSelected(i) || ((i == rn) && ForceSelect))
                {
                    try
                    {
                        if (rn > i)
                            tmp = i;
                        else
                        {
                            tmp = rn;
                            rn  = i;
                        }
                        for (i = 0; i < tmp; i++)
                            if (dg.IsSelected(i)) dg.UnSelect(i);
                        for (; i <= rn; i++)
                            if (!dg.IsSelected(i)) dg.Select(i);
                        for (; ;i++)
                            if (dg.IsSelected(i)) dg.UnSelect(i);
                    }
                    catch{}
                }
            }
        }        private static void dg_Mouse(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            dgSelectCore(sender, e, false);
        }
}
}

Answer 3

这些问题如果还没有得到求解
参考
http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp#q480q
能否对你有帮助,上面都有述说以及代码

Answer 4

简单地说，你的消息被DataGrid控件里面的DataGridTextBoxColumn的一些内部控件吃掉了