我有一个 datagridview,我希望根据用户输入的字符串部分对行进行排序。将输入的字符串与特定列中的所有字符串进行比较。例如,如果我将“comp”作为搜索词,程序将尝试将搜索词与第一列的字符串进行比较,并以“comp”开头的降序对行进行排序,例如“compare”, “作文”、“计算机”等。其余不匹配的单词要么单独放置,要么按字母顺序排序(以更容易的为准)。
在 LINQ 中,我知道您可以应用以下代码来实现您想要的字符串数组:
var sortedWords = words.Where(x => x.Contains("comp"))
.OrderByDescending(x => x);
如何在 Datagridview 中实现与需要对行进行排序的相同操作,而不仅仅是特定列中的项目?
编辑:
以下代码给出了 System.InvalidOperationException。(SetCurrentCellAddressCore 被调用了两次)
private void DGVPointCtrl_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
MatchComparer mc = new MatchComparer();
DGVPointCtrl.Sort(mc); //Error
}
我可能做错了什么,但我不知道为什么。这是以编程方式添加行以进行测试的代码:
private void BtnRefresh_Click(object sender, EventArgs e)
{
try
{
DGVPointCtrl.Rows.Clear();
int mainIndex = CmbMainDevice.SelectedIndex;
int subIndex = CmbSubDevice.SelectedIndex;
DDCDAO ddcdao = new DDCDAO(DDCGlobal.ddcEngineIP, ddc.Ip);
string pointListType;
object rs;
//Currently only supports IO DDC Request
//TO DO: Change DDCDAO to send proper subdevice requests
if (mainIndex == 0) //IO
{
#region Main Device: IO
}
//First row is for searching items
DGVPointCtrl.Rows.Add(new DataGridViewRow());
for (int i = 1; i < 5; i++)
{
DGVPointCtrl.Rows.Add(new DataGridViewRow());
DGVPointCtrl.Rows[i].ReadOnly = true;
}
DGVPointCtrl.Columns[0].SortMode = DataGridViewColumnSortMode.Programmatic;
DGVPointCtrl.Rows[0].DefaultCellStyle.Font =
new Font(DGVPointCtrl.DefaultCellStyle.Font, FontStyle.Italic | FontStyle.Bold);
if (subIndex == 1) //BI
{
PointDGVColumnGenerate("IO_BI");
}
else if (subIndex == 2) //BO
{
PointDGVColumnGenerate("IO_BO");
}
else if (subIndex == 3) //AI
{
PointDGVColumnGenerate("IO_AI");
}
else if (subIndex == 4) //AO
{
PointDGVColumnGenerate("IO_AO");
}
DGVPointCtrl.Rows[1].Cells[0].Value = "IO12314";
DGVPointCtrl.Rows[2].Cells[0].Value = "IO21948";
DGVPointCtrl.Rows[3].Cells[0].Value = "IO28194";
DGVPointCtrl.Rows[4].Cells[0].Value = "VP12984";
DGVPointCtrl.Rows[2].Cells[1].Value = "asdf";
#endregion
}
catch
{
}
}
private void PointDGVColumnGenerate(string key)
{
int colCount = 0;
DGVColumnTable.Clear();
for (int i = 0; i < COL_MAX; i++)
{
DGVPointCtrl.Columns[i].HeaderText = " ";
DGVPointCtrl.Columns[i].Visible = true;
}
foreach (string s in UIConstant.DDCPCtrlListColumnText[key])
{
DGVPointCtrl.Columns[colCount].HeaderText = s;
DGVColumnTable.Add(DGVPointCtrl.Columns[colCount]);
colCount++;
}
}
编辑2:
public class MatchComparer : IComparer
{
private static IComparer defaultComparer = new CaseInsensitiveComparer();
int IComparer.Compare(object x, object y)
{
DataGridViewRow xr = (DataGridViewRow)x;
DataGridViewRow yr = (DataGridViewRow)y;
string xs = "";
string ys = "";
try
{
xs = xr.Cells[0].Value.ToString();
}
catch
{
}
try
{
ys = yr.Cells[0].Value.ToString();
}
catch
{
}
if (HasMatch(xs) && !HasMatch(ys)) return -1;
else if (!HasMatch(xs) && HasMatch(ys)) return 1;
else return defaultComparer.Compare(xs, ys);
}