自己开发小软件对工作，加了个搜索医嘱名称，再显示颜色添加，回车索引跳行搜索，自用代码

  private void txtYZName_TextChanged(object sender, EventArgs e)        {            if (tabControl1.SelectedTab == tabControl1.TabPages["YZPage"])            {                if (SearchYZ == false)                {                    #region 恢复原先没颜色的状态                    if (txtYZName.Text.Equals(""))//&& (DataGridView2.Rows.Count == DGV_YZ_Count)                    {                        // 恢复之前行的背景颜色为默认的白色背景                        for (int i = 0; i < beforeMatchedRowIndex.Count; i++)                        {                            DataGridView2.Rows[beforeMatchedRowIndex[i]].DefaultCellStyle.BackColor = System.Drawing.Color.White;                        }                        return;                    }                    // 恢复之前行的背景颜色为默认的白色背景                    for (int i = 0; i < beforeMatchedRowIndex.Count; i++)                    {                        DataGridView2.Rows[beforeMatchedRowIndex[i]].DefaultCellStyle.BackColor = System.Drawing.Color.White;                    }                }                #endregion                #region  添加状态                //如果是刷新了搜索，如果是空字符，就退出                if (txtYZName.Text.Equals(""))                {                    return;                }                // Linq模糊查询                IEnumerable<DataGridViewRow> enumerableList = DataGridView2.Rows.Cast<DataGridViewRow>();                Matchedlist = (from item in enumerableList                               where item.Cells["YZMC"].Value.ToString().IndexOf(txtYZName.Text) >= 0                               select item).ToList();                if (Matchedlist.Count > 0)                {                    beforeMatchedRowIndex.Clear();                    for (int i = 0; i < Matchedlist.Count; i++)                    {                        // 查找匹配行高亮显示                        int matchedRowIndex = Matchedlist[i].Index;                        DataGridView2.Rows[matchedRowIndex].DefaultCellStyle.BackColor = System.Drawing.Color.Yellow;                        this.beforeMatchedRowIndex.Add(matchedRowIndex);                    }                }                k = 1;                SearchYZ = false;                #endregion            }            else            {                MessageBox.Show("请先定位到医嘱表，再输入医嘱名称");                return;            }        }        private void txtYZName_KeyDown(object sender, KeyEventArgs e)        {            //if (e.KeyCode == Keys.Enter)            //{            //    // 恢复之前行的背景颜色为默认的白色背景            //    if (k <= Matchedlist.Count)            //    {            //        if((k-2) >=0)//判断第一次不消颜色            //        {            //           DataGridView2.Rows[Matchedlist[k-2]].Selected = false;            //        }            //        DataGridView2.Rows[Matchedlist[k-1]].Selected = true; //加颜色            //        DataGridView2.CurrentCell = DataGridView2.Rows[Matchedlist[k - 1]].Cells["YZMC"];//设置成当前选框            //        if(k== Matchedlist.Count)//到了最大值            //        {            //            k++;            //            return;            //        }            //        k++;            //    }            //    if (k > beforeMatchedRowIndex.Count)            //    {            //        DataGridView2.Rows[beforeMatchedRowIndex[k - 2]].Selected = false;            //        k = 1;            //    }            //}            if (e.KeyCode == Keys.Enter)            {                if (SearchYZ == false)                {                    if (txtYZName.Text != "")                    {                        // 恢复之前行的背景颜色为默认的白色背景                        if (k <= Matchedlist.Count && Matchedlist.Count > 0)                        {                            //if ((k - 2) >= 0)//判断第一次不消颜色                            //{                            //    DataGridView2.Rows[Matchedlist[k - 2]].Selected = false;                            //}                            //DataGridView2.Rows[Matchedlist[k - 1]].Selected = true; //加颜色                            DataGridView2.CurrentCell = Matchedlist[k - 1].Cells["YZMC"];//设置成当前选框                            if (k == Matchedlist.Count)//到了最大值                            {                                k++;                                return;                            }                            k++;                        }                        if (k > Matchedlist.Count)                        {                            //DataGridView2.Rows[beforeMatchedRowIndex[k - 2]].Selected = false;                            k = 1;                        }                    }                }            }        }

 

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