前提
入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。
github：https://github.com/kwwwvagaa/netwinformcontrol
码云：
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nuget
install-package hzh_controls
目录
用处及效果
准备工作
这个用到了（一）c#winform自定义控件-基类控件、（三）c#winform自定义控件-有图标的按钮 、 （三十二）c#winform自定义控件-表格 不了解的可以先移步查看一下
开始
添加一个用户控件uctesttransfer
界面放2个表格，2个按钮即可
添加属性
1 /// <summary>
2 /// 移动数据事件
3 /// </summary>
4 [description("移动数据事件"), category("自定义")]
5 public event transfereventhandler transfered;
6
7 /// <summary>
8 /// the left columns
9 /// </summary>
10 private datagridviewcolumnentity[] leftcolumns;
11
12 /// <summary>
13 /// gets or sets the left columns.
14 /// </summary>
15 /// <value>the left columns.</value>
16 [description("左侧列表列"), category("自定义")]
17 public datagridviewcolumnentity[] leftcolumns
18 {
19 get { return leftcolumns; }
20 set
21 {
22 leftcolumns = value;
23 this.dgvleft.columns = leftcolumns.tolist();
24 }
25 }
26
27 /// <summary>
28 /// the right columns
29 /// </summary>
30 private datagridviewcolumnentity[] rightcolumns;
31
32 /// <summary>
33 /// gets or sets the right columns.
34 /// </summary>
35 /// <value>the right columns.</value>
36 [description("右侧列表列"), category("自定义")]
37 public datagridviewcolumnentity[] rightcolumns
38 {
39 get { return rightcolumns; }
40 set
41 {
42 rightcolumns = value;
43 this.dgvright.columns = leftcolumns.tolist();
44 }
45 }
46
47 /// <summary>
48 /// the left data source
49 /// </summary>
50 private object[] leftdatasource;
51 /// <summary>
52 /// 左右列表必须设置相同类型的数据源列表，如果为空必须为长度为0的数组
53 /// </summary>
54 /// <value>the left data source.</value>
55 [description("左侧列表数据源"), category("自定义"), browsable(false), editorbrowsable(editorbrowsablestate.never)]
56 public object[] leftdatasource
57 {
58 get { return leftdatasource; }
59 set
60 {
61 leftdatasource = value;
62 dgvleft.datasource = value;
63 }
64 }
65
66 /// <summary>
67 /// the right data source
68 /// </summary>
69 private object[] rightdatasource;
70 /// <summary>
71 /// 左右列表必须设置相同类型的数据源列表，如果为空必须为长度为0的数组
72 /// </summary>
73 /// <value>the left data source.</value>
74 [description("右侧列表数据源"), category("自定义"), browsable(false), editorbrowsable(editorbrowsablestate.never)]
75 public object[] rightdatasource
76 {
77 get { return rightdatasource; }
78 set
79 {
80 rightdatasource = value;
81 dgvright.datasource = value;
82 }
83 }
处理左右移动按钮事件
1 /// <summary>
2 /// handles the btnclick event of the btnright control.
3 /// </summary>
4 /// <param name="sender">the source of the event.</param>
5 /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
6 /// <exception cref="system.exception">
7 /// 左右数据源列表不能为空
8 /// or
9 /// 左右数据源列表类型不一致，无法进行操作
10 /// </exception>
11 private void btnright_btnclick(object sender, eventargs e)
12 {
13 if (leftdatasource == null || rightdatasource == null)
14 {
15 throw new exception("左右数据源列表不能为空");
16 }
17 if (leftdatasource.gettype() != rightdatasource.gettype())
18 {
19 throw new exception("左右数据源列表类型不一致，无法进行操作");
20 }
21 if (dgvleft.selectrows == null || dgvleft.selectrows.count <= 0)
22 return;
23 list<object> lst = new list<object>();
24 dgvleft.selectrows.foreach(p =>
25 {
26 lst.add(p.datasource);
27 p.ischecked = false;
28 });
29 var lstright = rightdatasource.tolist();
30 lstright.addrange(lst);
31 var lstleft = leftdatasource.tolist();
32 lstleft.removeall(p => lst.contains(p));
33 rightdatasource = lstright.toarray();
34 leftdatasource = lstleft.toarray();
35 if (transfered != null)
36 {
37 transfered(this, new transfereventargs() { transferdatasource = lst.toarray(), torightorleft = true });
38 }
39 }
40
41 /// <summary>
42 /// handles the btnclick event of the btnleft control.
43 /// </summary>
44 /// <param name="sender">the source of the event.</param>
45 /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
46 /// <exception cref="system.exception">
47 /// 左右数据源列表不能为空
48 /// or
49 /// 左右数据源列表类型不一致，无法进行操作
50 /// </exception>
51 private void btnleft_btnclick(object sender, eventargs e)
52 {
53 if (leftdatasource == null || rightdatasource == null)
54 {
55 throw new exception("左右数据源列表不能为空");
56 }
57 if (leftdatasource.gettype() != rightdatasource.gettype())
58 {
59 throw new exception("左右数据源列表类型不一致，无法进行操作");
60 }
61 if (dgvright.selectrows == null || dgvright.selectrows.count <= 0)
62 return;
63 list<object> lst = new list<object>();
64 dgvright.selectrows.foreach(p =>
65 {
66 lst.add(p.datasource);
67 p.ischecked = false;
68 });
69 var lstleft = leftdatasource.tolist();
70 lstleft.addrange(lst);
71 var lstright = rightdatasource.tolist();
72 lstright.removeall(p => lst.contains(p));
73 rightdatasource = lstright.toarray();
74 leftdatasource = lstleft.toarray();
75 if (transfered != null)
76 {
77 transfered(this, new transfereventargs() { transferdatasource = lst.toarray(), torightorleft = false });
78 }
79 }
完整代码
1 // ***********************************************************************
2 // assembly : hzh_controls
3 // created : 2019-10-10
4 //
5 // ***********************************************************************
6 // <copyright file="uctransfer.cs">
7 // copyright by huang zhenghui(黄正辉) all, qq group:568015492 qq:623128629 email:623128629@qq.com
8 // </copyright>
9 //
10 // blog: https://www.cnblogs.com/bfyx
11 // github：https://github.com/kwwwvagaa/netwinformcontrol
12 // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
13 //
14 // if you use this code, please keep this note.
15 // ***********************************************************************
16 using system;
17 using system.collections.generic;
18 using system.componentmodel;
19 using system.drawing;
20 using system.data;
21 using system.linq;
22 using system.text;
23 using system.windows.forms;
24
25 namespace hzh_controls.controls
26 {
27 /// <summary>
28 /// class uctransfer.
29 /// implements the <see cref="system.windows.forms.usercontrol" />
30 /// </summary>
31 /// <seealso cref="system.windows.forms.usercontrol" />
32 [defaultevent("transfered")]
33 public partial class uctransfer : usercontrol
34 {
35 /// <summary>
36 /// 移动数据事件
37 /// </summary>
38 [description("移动数据事件"), category("自定义")]
39 public event transfereventhandler transfered;
40
41 /// <summary>
42 /// the left columns
43 /// </summary>
44 private datagridviewcolumnentity[] leftcolumns;
45
46 /// <summary>
47 /// gets or sets the left columns.
48 /// </summary>
49 /// <value>the left columns.</value>
50 [description("左侧列表列"), category("自定义")]
51 public datagridviewcolumnentity[] leftcolumns
52 {
53 get { return leftcolumns; }
54 set
55 {
56 leftcolumns = value;
57 this.dgvleft.columns = leftcolumns.tolist();
58 }
59 }
60
61 /// <summary>
62 /// the right columns
63 /// </summary>
64 private datagridviewcolumnentity[] rightcolumns;
65
66 /// <summary>
67 /// gets or sets the right columns.
68 /// </summary>
69 /// <value>the right columns.</value>
70 [description("右侧列表列"), category("自定义")]
71 public datagridviewcolumnentity[] rightcolumns
72 {
73 get { return rightcolumns; }
74 set
75 {
76 rightcolumns = value;
77 this.dgvright.columns = leftcolumns.tolist();
78 }
79 }
80
81 /// <summary>
82 /// the left data source
83 /// </summary>
84 private object[] leftdatasource;
85 /// <summary>
86 /// 左右列表必须设置相同类型的数据源列表，如果为空必须为长度为0的数组
87 /// </summary>
88 /// <value>the left data source.</value>
89 [description("左侧列表数据源"), category("自定义"), browsable(false), editorbrowsable(editorbrowsablestate.never)]
90 public object[] leftdatasource
91 {
92 get { return leftdatasource; }
93 set
94 {
95 leftdatasource = value;
96 dgvleft.datasource = value;
97 }
98 }
99
100 /// <summary>
101 /// the right data source
102 /// </summary>
103 private object[] rightdatasource;
104 /// <summary>
105 /// 左右列表必须设置相同类型的数据源列表，如果为空必须为长度为0的数组
106 /// </summary>
107 /// <value>the left data source.</value>
108 [description("右侧列表数据源"), category("自定义"), browsable(false), editorbrowsable(editorbrowsablestate.never)]
109 public object[] rightdatasource
110 {
111 get { return rightdatasource; }
112 set
113 {
114 rightdatasource = value;
115 dgvright.datasource = value;
116 }
117 }
118
119 /// <summary>
120 /// initializes a new instance of the <see cref="uctransfer"/> class.
121 /// </summary>
122 public uctransfer()
123 {
124 initializecomponent();
125 dgvleft.iscloseautoheight = true;
126 dgvright.iscloseautoheight = true;
127 leftcolumns = new datagridviewcolumnentity[0];
128 rightcolumns = new datagridviewcolumnentity[0];
129 leftdatasource = new object[0];
130 rightdatasource = new object[0];
131 }
132
133 /// <summary>
134 /// handles the btnclick event of the btnright control.
135 /// </summary>
136 /// <param name="sender">the source of the event.</param>
137 /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
138 /// <exception cref="system.exception">
139 /// 左右数据源列表不能为空
140 /// or
141 /// 左右数据源列表类型不一致，无法进行操作
142 /// </exception>
143 private void btnright_btnclick(object sender, eventargs e)
144 {
145 if (leftdatasource == null || rightdatasource == null)
146 {
147 throw new exception("左右数据源列表不能为空");
148 }
149 if (leftdatasource.gettype() != rightdatasource.gettype())
150 {
151 throw new exception("左右数据源列表类型不一致，无法进行操作");
152 }
153 if (dgvleft.selectrows == null || dgvleft.selectrows.count <= 0)
154 return;
155 list<object> lst = new list<object>();
156 dgvleft.selectrows.foreach(p =>
157 {
158 lst.add(p.datasource);
159 p.ischecked = false;
160 });
161 var lstright = rightdatasource.tolist();
162 lstright.addrange(lst);
163 var lstleft = leftdatasource.tolist();
164 lstleft.removeall(p => lst.contains(p));
165 rightdatasource = lstright.toarray();
166 leftdatasource = lstleft.toarray();
167 if (transfered != null)
168 {
169 transfered(this, new transfereventargs() { transferdatasource = lst.toarray(), torightorleft = true });
170 }
171 }
172
173 /// <summary>
174 /// handles the btnclick event of the btnleft control.
175 /// </summary>
176 /// <param name="sender">the source of the event.</param>
177 /// <param name="e">the <see cref="eventargs"/> instance containing the event data.</param>
178 /// <exception cref="system.exception">
179 /// 左右数据源列表不能为空
180 /// or
181 /// 左右数据源列表类型不一致，无法进行操作
182 /// </exception>
183 private void btnleft_btnclick(object sender, eventargs e)
184 {
185 if (leftdatasource == null || rightdatasource == null)
186 {
187 throw new exception("左右数据源列表不能为空");
188 }
189 if (leftdatasource.gettype() != rightdatasource.gettype())
190 {
191 throw new exception("左右数据源列表类型不一致，无法进行操作");
192 }
193 if (dgvright.selectrows == null || dgvright.selectrows.count <= 0)
194 return;
195 list<object> lst = new list<object>();
196 dgvright.selectrows.foreach(p =>
197 {
198 lst.add(p.datasource);
199 p.ischecked = false;
200 });
201 var lstleft = leftdatasource.tolist();
202 lstleft.addrange(lst);
203 var lstright = rightdatasource.tolist();
204 lstright.removeall(p => lst.contains(p));
205 rightdatasource = lstright.toarray();
206 leftdatasource = lstleft.toarray();
207 if (transfered != null)
208 {
209 transfered(this, new transfereventargs() { transferdatasource = lst.toarray(), torightorleft = false });
210 }
211 }
212 }
213 }
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