1，先上圖

?

代碼如下。

View Code ?1??private?AutoCompleteStringCollection?autoCompleteSource?=?new?AutoCompleteStringCollection();
?2?
?3????private?void?dataGridView1_EditingControlShowing(object?sender,?DataGridViewEditingControlShowingEventArgs?e)
?4?????????{
?5?????????????DataGridView?dgv?=?(DataGridView)sender;
?6?????????????if?(e.Control?is?TextBox)
?7?????????????{
?8?????????????????TextBox?tb?=?(TextBox)e.Control;
?9?????????????????if?(dgv.CurrentCell.OwningColumn.Name=="Name")
10?????????????????{
11?????????????????????tb.AutoCompleteMode?=?AutoCompleteMode.SuggestAppend;
12?????????????????????tb.AutoCompleteSource?=?AutoCompleteSource.CustomSource;
13?????????????????????tb.AutoCompleteCustomSource?=?this.autoCompleteSource;
14?????????????????}
15?????????????????else
16?????????????????{
17?????????????????????tb.AutoCompleteMode?=?AutoCompleteMode.None;
18?????????????????}
19?????????????}
20?????????}
21?
22?????????private?void?dataGridView1_DataSourceChanged(object?sender,?EventArgs?e)
23?????????{
24?????????????var?dgv?=?(DataGridView)sender;
25?????????????this.autoCompleteSource.Clear();
26?????????????foreach?(DataGridViewRow?r?in?dgv.Rows)
27?????????????{
28?????????????????string?val?=?r.Cells["Name"].Value?as?string;
29?????????????????if?(!string.IsNullOrEmpty(val)?&&?!this.autoCompleteSource.Contains(val))
30?????????????????{
31?????????????????????autoCompleteSource.Add(val);
32?????????????????}
33?????????????}
34?????????}
35?
36?????????private?void?dataGridView1_CellValidating(object?sender,?DataGridViewCellValidatingEventArgs?e)
37?????????{
38?
39?????????}
40?????????//添加新的成員
41?????????private?void?dataGridView1_CellValueChanged(object?sender,?DataGridViewCellEventArgs?e)
42?????????{
43?????????????int?i=0;
44?????????????if?(e.RowIndex?==?-1)
45?????????????{
46?????????????????i?=?0;
47?????????????}
48?????????????else
49?????????????{
50?????????????????i?=?e.RowIndex;
51?????????????}
52?????????????var?dgv?=?(DataGridView)sender;
53?????????????if?(dgv.Columns[e.ColumnIndex].Name?==?"Name")
54?????????????{
55?????????????????string?val?=?dgv[e.ColumnIndex,?i].Value?as?string;
56?????????????????if?(!string.IsNullOrEmpty(val)?&&?!this.autoCompleteSource.Contains(val))
57?????????????????{
58?????????????????????autoCompleteSource.Add(val);
59?????????????????}
60?????????????}
61?????????}?

?通過以上幾個步驟就可以完成自動完成的實現了。

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