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📄 第3章 界面设计.htm

📁 这是有关截面设计的游泳的资料,相信vc爱好者学习之后会受益匪浅,内容是第3章 界面设计
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style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">ListBox的常用方法表现在项目集合中，包括可在代码中使用的 
Items.Add、Items.Insert、Items.Clear 或 Items.Remove 方法。也可以在程序设计阶段通过属性对话框为 Items 
添加项。<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">例<SPAN 
lang=EN-US>1，将“软件工程”加入到</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">ListBox1的项目集中。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; TEXT-ALIGN: left; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt; mso-layout-grid-align: none" 
align=left><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">ListBox1.Items.Add("软件工程")<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">注意：</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">Add方法只有一个</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">String型</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">参数代表添加内容。<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">例<SPAN 
lang=EN-US>2，将“</SPAN></SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">网络操作系统</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">”插入到</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'">ListBox1的项目集中第2项位置（0开始）。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ListBox1.Items.Insert(2, 
"网络操作系统")</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">注意：</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">Insert方法有两个参数，第一个参数是Integer型参数，代表插入的位置，第二个参数是String型参数表示插入内容。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">例<SPAN 
lang=EN-US>3，删除</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ListBox1的列表项中的第3项。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ListBox1.Items.RemoveAt(2)<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">例<SPAN 
lang=EN-US>4，删除</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ListBox1的列表项的全部项。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 新宋体; mso-font-kerning: 0pt; mso-hansi-font-family: 'Times New Roman'"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ListBox1.Items.Clear()<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">IndexOf也是ListBox</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">项目集合中的常用方法，通过它可以获得</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">指定项在集合中的索引号。<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">例如：<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">Label1.Text = 
Val(ListBox1.Items.IndexOf("网络操作系统"))</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18.05pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><B><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">⒉<SPAN 
lang=EN-US>CheckedListBox控件<o:p></o:p></SPAN></SPAN></B></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">CheckedListBox控件是带有复选框的ListBox列表控件。<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">CheckedListBox的每一个表项可以有两个状态或三个状态。<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ThreeDCheckBoxes</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">属性可以设置<SPAN 
lang=EN-US>CheckedListBox是否支持三状态。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">CheckedListBox有使用三个属性描述控件的全部项和当前选定项集合，Items是控件的全部表项集合。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">CheckedIndices</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">属性是控件中当前选中项的索引的集合。</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">CheckedItems</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">属性是控件中当前选中项的集合。向<SPAN 
lang=EN-US>CheckedListBox列表控件添加表项的方法与ListBox控件的方法一致。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10pt"><!--[if gte vml 1]><v:shape 
id=_x0000_s1063 
style="MARGIN-TOP: 15.6pt; Z-INDEX: -1; LEFT: 0px; MARGIN-LEFT: 0px; WIDTH: 243pt; POSITION: absolute; HEIGHT: 126.2pt; TEXT-ALIGN: left; mso-wrap-edited: f; mso-position-horizontal: left" 
wrapcoords="-59 0 -59 21506 21600 21506 21600 0 -59 0" type = "#_x0000_t75" 
coordsize = "21600,21600" o:regroupid = "2"><v:imagedata 
o:title="3-18 CheckedListBox 控件示例" src = 
"./3-2VB.NET教案.files/image003.png"></v:imagedata><w:wrap anchorx="page" type = 
"square"></w:wrap></v:shape><![endif]--><![if !vml]><img width=324 height=168
src="./3-2VB.NET教案.files/image004.jpg" align=left hspace=12 v:shapes="_x0000_s1063"><![endif]><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">⒊</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">应用实例<SPAN 
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt">编制<SPAN 
lang=EN-US>Windows应用程序，主窗体布局图。</SPAN></SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"> 
“添加”按钮用于将<SPAN lang=EN-US>TextBox1中的编辑结果作为列表项加入到CheckedListBox1中。 
“确认”按钮用于将CheckedListBox1控件中当前被选定项添加到窗体右侧的ListBox控件中。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">*在属性对话框中设置CheckedListBox1控件的相关属性：<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">ThreeDCheckBoxes 
= False<SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN><SPAN style="COLOR: green">'</SPAN>（设置两状态标记）</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">MultiColumn= 
</SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">False</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><SPAN 
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</SPAN></SPAN><SPAN lang=EN-US 
style="FONT-SIZE: 9pt; COLOR: green; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">'</SPAN><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt">（单列显示）</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">{以下内容通过媒体演示教学}</SPAN><SPAN 
lang=EN-US 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><![if !supportEmptyParas]><![endif]>&nbsp;<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9.0pt"><SPAN 
lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt"><![if !supportEmptyParas]><![endif]>&nbsp;<o:p></o:p></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9.0pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">七、<SPAN 
lang=EN-US>PictureBox控件<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">图片框<SPAN 
lang=EN-US>PictureBox控件常用于在窗体中显示位图、图元文件、图标、JPEG、GIF和PNG文件中的图像。PictureBox控件中可以显示两个图像，一个是前景图像另一个是背景图像。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal 
style="TEXT-INDENT: 18pt; mso-char-indent-count: 2.0; mso-char-indent-size: 9pt"><SPAN 
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt">⒈<SPAN 
lang=EN-US>PictureBox控件常用属性<o:p></o:p></SPAN></SPAN></P>
<P c
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