canInfoDgv.CellMouseEnter +=new DataGridViewCellEventHandler(canInfoDgv_CellMouseEnter);

void canInfoDgv_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
{
if (e.RowIndex >-1)
{
DataGridView dgv = (DataGridView)sender;
DataGridViewCell cellObj = dgv.Rows[e.RowIndex].Cells[e.ColumnIndex];
switch (dgv.Columns[e.ColumnIndex].Name)
{
case"colswName": cellObj.ToolTipText ="点击浏览此食物详细信息！"; break;
case"colswWeight": cellObj.ToolTipText ="点击编辑此食物重量！"; Console.WriteLine("canInfoDgv_CellMouseEnter :"+ cellObj.Value.ToString()); break; //
case"colswYl": SetColswYl_ToolTip(cellObj); break;
case"colEdit": cellObj.ToolTipText ="点击编辑菜肴的组成!"; break;
case"colDo": cellObj.ToolTipText ="点击删除此食物!"; break;
default: break;
}
dgv =null;
cellObj =null;
}
}

///<summary>
/// 设置DataGridView通用属性
///</summary>
///<param name="dgv"></param>
protectedvoid SetDgv_Com(DataGridView dgv)
{
dgv.AllowUserToAddRows =false;
dgv.AllowUserToResizeColumns =false;
dgv.AllowUserToResizeRows =false;
dgv.RowHeadersVisible =false;
dgv.EditMode = DataGridViewEditMode.EditOnEnter;
//绑定时不自动创建列(解决列的位置不固定)
dgv.AutoGenerateColumns =false;
}

///<summary>
/// 设置DataGridView交替行样式
///</summary>
///<param name="dgv"></param>
///<param name="deRowColor">默认行颜色</param>
///<param name="altRowColor">交替行颜色</param>
protectedvoid SetDgv_AlternatingRowColor(DataGridView dgv, Color deRowColor, Color altRowColor)
{
dgv.RowsDefaultCellStyle.BackColor = deRowColor;
dgv.AlternatingRowsDefaultCellStyle.BackColor = altRowColor;
}

///<summary>
/// 设置 DataGridView 特殊样式 [无边框 内容居中 设置表头背景色]
///</summary>
protectedvoid SetDgv_SpecialStyle(DataGridView dgvObj, Color HeaderBgColor,Color selectedCellBgColor)
{
SetDgv_SpecialStyle(dgvObj, HeaderBgColor, selectedCellBgColor, System.Drawing.SystemColors.Window, true);
}

///<summary>
/// 设置 DataGridView 特殊样式 [无边框 内容居中 设置表头背景色]
///</summary>
protectedvoid SetDgv_SpecialStyle(DataGridView dgvObj, Color HeaderBgColor, Color selectedCellBgColor,Color bgColor,bool isNoBorder)
{
dgvObj.BackgroundColor = bgColor;
if (isNoBorder)
{
dgvObj.BorderStyle = BorderStyle.None;
dgvObj.CellBorderStyle = DataGridViewCellBorderStyle.None;
dgvObj.ColumnHeadersBorderStyle = DataGridViewHeaderBorderStyle.None;
}

//设置单元格内容居中显示 ColumnHeadersDefaultCellStyle:是设置列标题的样式
dgvObj.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
if (selectedCellBgColor !=null)
dgvObj.DefaultCellStyle.SelectionBackColor = selectedCellBgColor;

dgvObj.DefaultCellStyle.SelectionForeColor = Color.Black;
dgvObj.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
dgvObj.ColumnHeadersDefaultCellStyle.BackColor = HeaderBgColor;
dgvObj.EnableHeadersVisualStyles =false;
}