forked from npgsql/npgsql
-
Notifications
You must be signed in to change notification settings - Fork 3
Expand file tree
/
Copy pathAutoCompleteColumn.cs
More file actions
142 lines (125 loc) · 4.04 KB
/
AutoCompleteColumn.cs
File metadata and controls
142 lines (125 loc) · 4.04 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/********************************************************
* ADO.NET 2.0 Data Provider for SQLite Version 3.X
* Written by Robert Simpson (robert@blackcastlesoft.com)
*
* Released to the public domain, use at your own risk!
********************************************************/
namespace Npgsql.Designer.Editors
{
using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing;
public class AutoCompleteColumn : DataGridViewColumn
{
public AutoCompleteColumn()
: base(new AutoCompleteCell())
{
}
}
public class AutoCompleteCell : DataGridViewTextBoxCell
{
public override Type EditType
{
get
{
return typeof(AutoCompleteEditingControl);
}
}
}
public class AutoCompleteEditingControl : DataGridViewComboBoxEditingControl
{
private bool inPrepare = false;
private bool isDeleting = false;
public override object EditingControlFormattedValue
{
get
{
return base.Text;
}
set
{
base.Text = value as string;
}
}
public override void PrepareEditingControlForEdit(bool selectAll)
{
inPrepare = true;
base.PrepareEditingControlForEdit(selectAll);
if (base.Items.Count == 0)
{
base.Items.Add("integer");
base.Items.Add("int");
base.Items.Add("smallint");
base.Items.Add("tinyint");
base.Items.Add("bit");
base.Items.Add("varchar(50)");
base.Items.Add("nvarchar(50)");
base.Items.Add("text");
base.Items.Add("ntext");
base.Items.Add("image");
base.Items.Add("money");
base.Items.Add("float");
base.Items.Add("real");
base.Items.Add("decimal");
base.Items.Add("numeric(18,0)");
base.Items.Add("char(10)");
base.Items.Add("nchar(10)");
base.Items.Add("datetime");
base.Items.Add("guid");
}
base.DropDownStyle = ComboBoxStyle.DropDown;
base.Text = EditingControlDataGridView.CurrentCell.Value as string;
if (selectAll)
base.SelectAll();
inPrepare = false;
}
public override bool EditingControlWantsInputKey(Keys keyData, bool dataGridViewWantsInputKey)
{
isDeleting = false;
switch (keyData & Keys.KeyCode)
{
case Keys.Delete:
case Keys.Back:
isDeleting = true;
break;
}
if (((keyData & Keys.KeyCode) == Keys.Left && (base.SelectionStart > 0 || base.SelectionLength > 0))
|| ((keyData & Keys.KeyCode) == Keys.Right && (base.SelectionStart < base.Text.Length || base.SelectionLength > 0))
|| (((keyData & Keys.KeyCode) == Keys.Home || (keyData & Keys.KeyCode) == Keys.End) && base.SelectionLength != base.Text.Length)
)
{
return true;
}
return base.EditingControlWantsInputKey(keyData, dataGridViewWantsInputKey);
}
protected override void OnTextChanged(EventArgs e)
{
if (inPrepare) return;
base.OnTextChanged(e);
bool changed = !(EditingControlDataGridView.CurrentCell.Value as string == base.Text ||
(String.IsNullOrEmpty(base.Text) && String.IsNullOrEmpty(EditingControlDataGridView.CurrentCell.Value as string)));
if ((base.SelectionLength == 0 || base.SelectionStart == base.Text.Length) && isDeleting == false)
{
if (base.Items.Contains(base.Text) == false)
{
for (int n = 0; n < base.Items.Count; n++)
{
if (((string)base.Items[n]).StartsWith(base.Text, StringComparison.OrdinalIgnoreCase) == true)
{
int start = base.SelectionStart;
inPrepare = true;
base.Text = base.Items[n] as string;
base.SelectionStart = start;
base.SelectionLength = base.Text.Length - start;
inPrepare = false;
break;
}
}
}
}
EditingControlValueChanged = changed;
EditingControlDataGridView.NotifyCurrentCellDirty(changed);
}
}
}