（三十）c#Winform自定义控件-文本框（三）
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2022-05-29 10:05:19
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。 开源地址：https://gitee.com/kwwwvagaa/net_winform_custom_control 如果觉得写的还行，请点个 star 支持一下吧 欢迎前来交流探讨： 企鹅群568015492 目录 ......
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。
开源地址：
如果觉得写的还行，请点个 star 支持一下吧
欢迎前来交流探讨： 企鹅群568015492
目录
准备工作
终于到文本框了，文本框将包含原文本框扩展，透明文本框，数字输入文本框，带边框文本框
本文将讲解数字输入文本框，可以通过加减按钮来改变数字
用到了无焦点窗体和键盘，如果你还没有了解，请前往查看
开始
添加用户控件，命名ucnumtextbox
有这些属性
1 [description("弹出输入键盘时发生"), category("自定义")]
2 public event eventhandler showkeyborderevent;
3 [description("关闭输入键盘时发生"), category("自定义")]
4 public event eventhandler hidekeyborderevent;
5 [description("数字改变时发生"), category("自定义")]
6 public event eventhandler numchanged;
7 /// <summary>
8 /// 输入类型
9 /// </summary>
10 [description("输入类型"), category("自定义")]
11 public textinputtype inputtype
12 {
13 get
14 {
15 return txtnum.inputtype;
16 }
17 set
18 {
19 if (value == textinputtype.notcontrol)
20 {
21 return;
22 }
23 txtnum.inputtype = value;
24 }
25 }
26
27 [description("数字是否可手动编辑"), category("自定义")]
28 public bool isnumcaninput
29 {
30 get
31 {
32 return txtnum.enabled;
33 }
34 set
35 {
36 txtnum.enabled = value;
37 }
38 }
39 /// <summary>
40 /// 当inputtype为数字类型时，能输入的最大值
41 /// </summary>
42 [description("当inputtype为数字类型时，能输入的最大值。")]
43 public decimal maxvalue
44 {
45 get
46 {
47 return this.txtnum.maxvalue;
48 }
49 set
50 {
51 this.txtnum.maxvalue = value;
52 }
53 }
54 /// <summary>
55 /// 当inputtype为数字类型时，能输入的最小值
56 /// </summary>
57 [description("当inputtype为数字类型时，能输入的最小值。")]
58 public decimal minvalue
59 {
60 get
61 {
62 return this.txtnum.minvalue;
63 }
64 set
65 {
66 this.txtnum.minvalue = value;
67 }
68 }
69 private keyboardtype keyboardtype = keyboardtype.uckeybordernum;
70 [description("键盘样式"), category("自定义")]
71 public keyboardtype keyboardtype
72 {
73 get { return keyboardtype; }
74 set { keyboardtype = value; }
75 }
76
77 [description("数值"), category("自定义")]
78 public decimal num
79 {
80 get { return txtnum.text.todecimal(); }
81 set { txtnum.text = value.tostring(); }
82 }
83 [description("字体"), category("自定义")]
84 public new font font
85 {
86 get
87 {
88 return txtnum.font;
89 }
90 set
91 {
92 txtnum.font = value;
93 }
94 }
95
96 [description("增加按钮点击事件"), category("自定义")]
97 public event eventhandler addclick;
98 [description("减少按钮点击事件"), category("自定义")]
99 public event eventhandler minusclick;
一些事件
1 void txtnum_textchanged(object sender, eventargs e)
2 {
3 if (numchanged != null)
4 {
5 numchanged(txtnum.text.tostring(), e);
6 }
7 }
8 forms.frmanchor m_frmanchor;
9 private void txtnum_mousedown(object sender, mouseeventargs e)
10 {
11 if (isnumcaninput)
12 {
13 if (keyboardtype != hzh_controls.controls.keyboardtype.null)
14 {
15 switch (keyboardtype)
16 {
17 case keyboardtype.uckeyborderall_en:
18
19 uckeyborderall keyall = new uckeyborderall();
20 keyall.retractclike += (a, b) => { m_frmanchor.hide(); };
21 keyall.enterclick += (a, b) => { m_frmanchor.hide(); };
22 m_frmanchor = new forms.frmanchor(this, keyall);
23 m_frmanchor.visiblechanged += m_frmanchor_visiblechanged;
24
25 m_frmanchor.show(this.findform());
26 break;
27 case keyboardtype.uckeybordernum:
28
29 uckeybordernum keynum = new uckeybordernum();
30 keynum.enterclick += (a, b) => { m_frmanchor.hide(); };
31 m_frmanchor = new forms.frmanchor(this, keynum);
32 m_frmanchor.visiblechanged += m_frmanchor_visiblechanged;
33 m_frmanchor.show(this.findform());
34 break;
35 }
36 }
37 }
38 }
39
40 void m_frmanchor_visiblechanged(object sender, eventargs e)
41 {
42 if (m_frmanchor.visible)
43 {
44 if (showkeyborderevent != null)
45 {
46 showkeyborderevent(this, null);
47 }
48 }
49 else
50 {
51 if (hidekeyborderevent != null)
52 {
53 hidekeyborderevent(this, null);
54 }
55 }
56 }
57
58 public void numaddclick()
59 {
60 btnadd_mousedown(null, null);
61 }
62
63 public void numminusclick()
64 {
65 btnminus_mousedown(null, null);
66 }
67
68 private void btnadd_mousedown(object sender, mouseeventargs e)
69 {
70 if (addclick != null)
71 {
72 addclick(this, e);
73 }
74 decimal dec = this.txtnum.text.todecimal();
75 dec++;
76 txtnum.text = dec.tostring();
77
78 }
79
80 private void btnminus_mousedown(object sender, mouseeventargs e)
81 {
82 if (minusclick != null)
83 {
84 minusclick(this, e);
85 }
86 decimal dec = this.txtnum.text.todecimal();
87 dec--;
88 txtnum.text = dec.tostring();
89 }
90
91 private void ucnumtextbox_load(object sender, eventargs e)
92 {
93 this.txtnum.backcolor = this.backcolor;
94 }
95
96 private void txtnum_fontchanged(object sender, eventargs e)
97 {
98 txtnum.location = new point(txtnum.location.x, (this.height - txtnum.height) / 2);
99 }
100
101 private void ucnumtextbox_backcolorchanged(object sender, eventargs e)
102 {
103 color c = this.backcolor;
104 control control = this;
105 while (c == color.transparent)
106 {
107 control = control.parent;
108 if (control == null)
109 break;
110 c = control.backcolor;
111 }
112 if (c == color.transparent)
113 return;
114 txtnum.backcolor = c;
115 }
完整代码
1 // 版权所有 黄正辉 交流群：568015492 qq：623128629
2 // 文件名称：ucnumtextbox.cs
3 // 创建日期：2019-08-15 16:03:54
4 // 功能描述：textbox
5 // 项目地址：https://gitee.com/kwwwvagaa/net_winform_custom_control
6 using system;
7 using system.collections.generic;
8 using system.componentmodel;
9 using system.drawing;
10 using system.data;
11 using system.linq;
12 using system.text;
13 using system.windows.forms;
14
15 namespace hzh_controls.controls
16 {
17 [defaultevent("numchanged")]
18 public partial class ucnumtextbox : usercontrol
19 {
20 [description("弹出输入键盘时发生"), category("自定义")]
21 public event eventhandler showkeyborderevent;
22 [description("关闭输入键盘时发生"), category("自定义")]
23 public event eventhandler hidekeyborderevent;
24 [description("数字改变时发生"), category("自定义")]
25 public event eventhandler numchanged;
26 /// <summary>
27 /// 输入类型
28 /// </summary>
29 [description("输入类型"), category("自定义")]
30 public textinputtype inputtype
31 {
32 get
33 {
34 return txtnum.inputtype;
35 }
36 set
37 {
38 if (value == textinputtype.notcontrol)
39 {
40 return;
41 }
42 txtnum.inputtype = value;
43 }
44 }
45
46 [description("数字是否可手动编辑"), category("自定义")]
47 public bool isnumcaninput
48 {
49 get
50 {
51 return txtnum.enabled;
52 }
53 set
54 {
55 txtnum.enabled = value;
56 }
57 }
58 /// <summary>
59 /// 当inputtype为数字类型时，能输入的最大值
60 /// </summary>
61 [description("当inputtype为数字类型时，能输入的最大值。")]
62 public decimal maxvalue
63 {
64 get
65 {
66 return this.txtnum.maxvalue;
67 }
68 set
69 {
70 this.txtnum.maxvalue = value;
71 }
72 }
73 /// <summary>
74 /// 当inputtype为数字类型时，能输入的最小值
75 /// </summary>
76 [description("当inputtype为数字类型时，能输入的最小值。")]
77 public decimal minvalue
78 {
79 get
80 {
81 return this.txtnum.minvalue;
82 }
83 set
84 {
85 this.txtnum.minvalue = value;
86 }
87 }
88 private keyboardtype keyboardtype = keyboardtype.uckeybordernum;
89 [description("键盘样式"), category("自定义")]
90 public keyboardtype keyboardtype
91 {
92 get { return keyboardtype; }
93 set { keyboardtype = value; }
94 }
95
96 [description("数值"), category("自定义")]
97 public decimal num
98 {
99 get { return txtnum.text.todecimal(); }
100 set { txtnum.text = value.tostring(); }
101 }
102 [description("字体"), category("自定义")]
103 public new font font
104 {
105 get
106 {
107 return txtnum.font;
108 }
109 set
110 {
111 txtnum.font = value;
112 }
113 }
114
115 [description("增加按钮点击事件"), category("自定义")]
116 public event eventhandler addclick;
117 [description("减少按钮点击事件"), category("自定义")]
118 public event eventhandler minusclick;
119 public ucnumtextbox()
120 {
121 initializecomponent();
122 txtnum.textchanged += txtnum_textchanged;
123 }
124
125 void txtnum_textchanged(object sender, eventargs e)
126 {
127 if (numchanged != null)
128 {
129 numchanged(txtnum.text.tostring(), e);
130 }
131 }
132 forms.frmanchor m_frmanchor;
133 private void txtnum_mousedown(object sender, mouseeventargs e)
134 {
135 if (isnumcaninput)
136 {
137 if (keyboardtype != hzh_controls.controls.keyboardtype.null)
138 {
139 switch (keyboardtype)
140 {
141 case keyboardtype.uckeyborderall_en:
142
143 uckeyborderall keyall = new uckeyborderall();
144 keyall.retractclike += (a, b) => { m_frmanchor.hide(); };
145 keyall.enterclick += (a, b) => { m_frmanchor.hide(); };
146 m_frmanchor = new forms.frmanchor(this, keyall);
147 m_frmanchor.visiblechanged += m_frmanchor_visiblechanged;
148
149 m_frmanchor.show(this.findform());
150 break;
151 case keyboardtype.uckeybordernum:
152
153 uckeybordernum keynum = new uckeybordernum();
154 keynum.enterclick += (a, b) => { m_frmanchor.hide(); };
155 m_frmanchor = new forms.frmanchor(this, keynum);
156 m_frmanchor.visiblechanged += m_frmanchor_visiblechanged;
157 m_frmanchor.show(this.findform());
158 break;
159 }
160 }
161 }
162 }
163
164 void m_frmanchor_visiblechanged(object sender, eventargs e)
165 {
166 if (m_frmanchor.visible)
167 {
168 if (showkeyborderevent != null)
169 {
170 showkeyborderevent(this, null);
171 }
172 }
173 else
174 {
175 if (hidekeyborderevent != null)
176 {
177 hidekeyborderevent(this, null);
178 }
179 }
180 }
181
182 public void numaddclick()
183 {
184 btnadd_mousedown(null, null);
185 }
186
187 public void numminusclick()
188 {
189 btnminus_mousedown(null, null);
190 }
191
192 private void btnadd_mousedown(object sender, mouseeventargs e)
193 {
194 if (addclick != null)
195 {
196 addclick(this, e);
197 }
198 decimal dec = this.txtnum.text.todecimal();
199 dec++;
200 txtnum.text = dec.tostring();
201
202 }
203
204 private void btnminus_mousedown(object sender, mouseeventargs e)
205 {
206 if (minusclick != null)
207 {
208 minusclick(this, e);
209 }
210 decimal dec = this.txtnum.text.todecimal();
211 dec--;
212 txtnum.text = dec.tostring();
213 }
214
215 private void ucnumtextbox_load(object sender, eventargs e)
216 {
217 this.txtnum.backcolor = this.backcolor;
218 }
219
220 private void txtnum_fontchanged(object sender, eventargs e)
221 {
222 txtnum.location = new point(txtnum.location.x, (this.height - txtnum.height) / 2);
223 }
224
225 private void ucnumtextbox_backcolorchanged(object sender, eventargs e)
226 {
227 color c = this.backcolor;
228 control control = this;
229 while (c == color.transparent)
230 {
231 control = control.parent;
232 if (control == null)
233 break;
234 c = control.backcolor;
235 }
236 if (c == color.transparent)
237 return;
238 txtnum.backcolor = c;
239 }
240 }
241 }
1 namespace hzh_controls.controls
2 {
3 partial class ucnumtextbox
4 {
5 /// <summary>
6 /// 必需的设计器变量。
7 /// </summary>
8 private system.componentmodel.icontainer components = null;
9
10 /// <summary>
11 /// 清理所有正在使用的资源。
12 /// </summary>
13 /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
14 protected override void dispose(bool disposing)
15 {
16 if (disposing && (components != null))
17 {
18 components.dispose();
19 }
20 base.dispose(disposing);
21 }
22
23 #region 组件设计器生成的代码
24
25 /// <summary>
26 /// 设计器支持所需的方法 - 不要
27 /// 使用代码编辑器修改此方法的内容。
28 /// </summary>
29 private void initializecomponent()
30 {
31 this.txtnum = new hzh_controls.controls.textboxex();
32 this.btnminus = new system.windows.forms.panel();
33 this.btnadd = new system.windows.forms.panel();
34 this.suspendlayout();
35 //
36 // txtnum
37 //
38 this.txtnum.anchor = ((system.windows.forms.anchorstyles)((system.windows.forms.anchorstyles.left | system.windows.forms.anchorstyles.right)));
39 this.txtnum.backcolor = system.drawing.color.fromargb(((int)(((byte)(247)))), ((int)(((byte)(247)))), ((int)(((byte)(247)))));
40 this.txtnum.borderstyle = system.windows.forms.borderstyle.none;
41 this.txtnum.declength = 3;
42 this.txtnum.font = new system.drawing.font("arial unicode ms", 15f);
43 this.txtnum.inputtype = textinputtype.number;
44 this.txtnum.location = new system.drawing.point(37, 11);
45 this.txtnum.margin = new system.windows.forms.padding(0);
46 this.txtnum.maxvalue = new decimal(new int[] {
47 1000000,
48 0,
49 0,
50 0});
51 this.txtnum.minvalue = new decimal(new int[] {
52 0,
53 0,
54 0,
55 0});
56 this.txtnum.myrectangle = new system.drawing.rectangle(0, 0, 0, 0);
57 this.txtnum.name = "txtnum";
58 this.txtnum.oldtext = null;
59 this.txtnum.promptcolor = system.drawing.color.gray;
60 this.txtnum.promptfont = new system.drawing.font("微软雅黑", 15f, system.drawing.fontstyle.regular, system.drawing.graphicsunit.pixel);
61 this.txtnum.prompttext = "";
62 this.txtnum.regexpattern = "";
63 this.txtnum.size = new system.drawing.size(78, 27);
64 this.txtnum.tabindex = 9;
65 this.txtnum.text = "1";
66 this.txtnum.textalign = system.windows.forms.horizontalalignment.center;
67 this.txtnum.fontchanged += new system.eventhandler(this.txtnum_fontchanged);
68 this.txtnum.mousedown += new system.windows.forms.mouseeventhandler(this.txtnum_mousedown);
69 //
70 // btnminus
71 //
72 this.btnminus.backcolor = system.drawing.color.transparent;
73 this.btnminus.backgroundimage = global::hzh_controls.properties.resources.ic_remove_black_18dp;
74 this.btnminus.backgroundimagelayout = system.windows.forms.imagelayout.center;
75 this.btnminus.dock = system.windows.forms.dockstyle.left;
76 this.btnminus.location = new system.drawing.point(2, 2);
77 this.btnminus.name = "btnminus";
78 this.btnminus.size = new system.drawing.size(32, 40);
79 this.btnminus.tabindex = 6;
80 this.btnminus.mousedown += new system.windows.forms.mouseeventhandler(this.btnminus_mousedown);
81 //
82 // btnadd
83 //
84 this.btnadd.backcolor = system.drawing.color.transparent;
85 this.btnadd.backgroundimage = global::hzh_controls.properties.resources.ic_add_black_18dp;
86 this.btnadd.backgroundimagelayout = system.windows.forms.imagelayout.center;
87 this.btnadd.dock = system.windows.forms.dockstyle.right;
88 this.btnadd.location = new system.drawing.point(118, 2);
89 this.btnadd.name = "btnadd";
90 this.btnadd.size = new system.drawing.size(32, 40);
91 this.btnadd.tabindex = 5;
92 this.btnadd.mousedown += new system.windows.forms.mouseeventhandler(this.btnadd_mousedown);
93 //
94 // ucnumtextbox
95 //
96 this.autoscalemode = system.windows.forms.autoscalemode.none;
97 this.controls.add(this.txtnum);
98 this.controls.add(this.btnminus);
99 this.controls.add(this.btnadd);
100 this.name = "ucnumtextbox";
101 this.padding = new system.windows.forms.padding(2);
102 this.size = new system.drawing.size(152, 44);
103 this.load += new system.eventhandler(this.ucnumtextbox_load);
104 this.backcolorchanged += new system.eventhandler(this.ucnumtextbox_backcolorchanged);
105 this.resumelayout(false);
106 this.performlayout();
107
108 }
109
110 #endregion
111
112 private system.windows.forms.panel btnadd;
113 private system.windows.forms.panel btnminus;
114 private textboxex txtnum;
115 }
116 }
设计效果
用处及效果
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