.NET編程技術實驗報告

1、 實驗報告 （2012-2013學年第二學期） 課程名稱： .net編程技術 學生姓名： 蘭天翔 專業(yè)班級： 10級計算機2班 學 院： 信電學院 學 號： 14514026 學生成績： 實驗一windows應用編程實驗目的1 掌握windows窗體的基本屬性、事件和方法的使用。2 掌握常用控件的具體使用。實驗內容完成字體設置程序。實驗代碼：using system;using system.collections.generic;using system.componentmodel;using system.data;using system.drawing;using system.te

2、xt;using system.windows.forms;namespace fontset public partial class form1 : form string fontfamily=宋體; float fontsize=10.0f; fontstyle fontstyle=fontstyle.regular; public form1() initializecomponent(); private void setfont() this.richtextbox1.font = new font(fontfamily, fontsize, fontstyle); privat

3、e void rbsongti_checkedchanged(object sender, eventargs e) if (rbsongti.checked) this.fontfamily = 宋體; setfont(); private void rblishu_checkedchanged(object sender, eventargs e) if (rblishu.checked) this.fontfamily = 隸書; setfont(); private void cbbold_checkedchanged(object sender, eventargs e) if (c

4、bbold.checked) this.fontstyle = this.fontstyle| fontstyle.bold; else this.fontstyle -= fontstyle.bold; setfont(); private void cbitalic_checkedchanged(object sender, eventargs e) if (cbitalic.checked) this.fontstyle =this.fontstyle| fontstyle.italic; else this.fontstyle -= fontstyle.italic; setfont(

5、); private void cbunderline_checkedchanged(object sender, eventargs e) if (cbunderline.checked) this.fontstyle = this.fontstyle | fontstyle.underline; else this.fontstyle -= fontstyle.underline; setfont(); private void numericupdown1_valuechanged(object sender, eventargs e) this.fontsize = convert.t

6、osingle(this.numericupdown1.value); setfont(); programusing system;using system.collections.generic;using system.windows.forms;namespace fontset static class program / 應用程序的主入口點。 stathread static void main() application.enablevisualstyles(); application.setcompatibletextrenderingdefault(false); appl

7、ication.run(new form1(); forml.designernamespace fontset partial class form1 / 必需的設計器變量。 private system.componentmodel.icontainer components = null; / 清理所有正在使用的資源。 / 如果應釋放托管資源，為 true；否則為 false。 protected override void dispose(bool disposing) if (disposing & (components != null) components.dispose();

8、 base.dispose(disposing); #region windows 窗體設計器生成的代碼 / 設計器支持所需的方法 - 不要 / 使用代碼編輯器修改此方法的內容。 private void initializecomponent() this.groupbox1 = new system.windows.forms.groupbox(); this.groupbox2 = new system.windows.forms.groupbox(); this.groupbox3 = new system.windows.forms.groupbox(); this.rbsongti

9、 = new system.windows.forms.radiobutton(); this.rblishu = new system.windows.forms.radiobutton(); this.numericupdown1 = new system.windows.forms.numericupdown(); this.cbbold = new system.windows.forms.checkbox(); this.cbitalic = new system.windows.forms.checkbox(); this.cbunderline = new system.wind

10、ows.forms.checkbox(); this.richtextbox1 = new system.windows.forms.richtextbox(); this.groupbox1.suspendlayout(); this.groupbox2.suspendlayout(); this.groupbox3.suspendlayout(); (system.componentmodel.isupportinitialize)(this.numericupdown1).begininit(); this.suspendlayout(); / groupbox1 this.groupb

11、ox1.controls.add(this.rblishu); this.groupbox1.controls.add(this.rbsongti); this.groupbox1.location = new system.drawing.point(3, 206); this.groupbox1.name = groupbox1; this.groupbox1.size = new system.drawing.size(208, 199); this.groupbox1.tabindex = 0; this.groupbox1.tabstop = false; this.groupbox

12、1.text = 字體; / groupbox2 this.groupbox2.controls.add(this.numericupdown1); this.groupbox2.location = new system.drawing.point(217, 206); this.groupbox2.name = groupbox2; this.groupbox2.size = new system.drawing.size(201, 199); this.groupbox2.tabindex = 0; this.groupbox2.tabstop = false; this.groupbo

13、x2.text = 大小; / groupbox3 this.groupbox3.controls.add(this.cbunderline); this.groupbox3.controls.add(this.cbitalic); this.groupbox3.controls.add(this.cbbold); this.groupbox3.location = new system.drawing.point(424, 206); this.groupbox3.name = groupbox3; this.groupbox3.size = new system.drawing.size(

14、216, 199); this.groupbox3.tabindex = 0; this.groupbox3.tabstop = false; this.groupbox3.text = 風格; / rbsongti this.rbsongti.autosize = true; this.rbsongti.location = new system.drawing.point(27, 41); this.rbsongti.name = rbsongti; this.rbsongti.size = new system.drawing.size(47, 16); this.rbsongti.ta

15、bindex = 0; this.rbsongti.tabstop = true; this.rbsongti.text = 宋體; this.rbsongti.usevisualstylebackcolor = true; this.rbsongti.checkedchanged += new system.eventhandler(this.rbsongti_checkedchanged); / rblishu this.rblishu.autosize = true; this.rblishu.location = new system.drawing.point(27, 81); th

16、is.rblishu.name = rblishu; this.rblishu.size = new system.drawing.size(47, 16); this.rblishu.tabindex = 1; this.rblishu.tabstop = true; this.rblishu.text = 隸書; this.rblishu.usevisualstylebackcolor = true; this.rblishu.checkedchanged += new system.eventhandler(this.rblishu_checkedchanged); / numericu

17、pdown1 this.numericupdown1.location = new system.drawing.point(36, 52); this.numericupdown1.name = numericupdown1; this.numericupdown1.size = new system.drawing.size(120, 21); this.numericupdown1.tabindex = 2; this.numericupdown1.value = new decimal(new int 10, 0,0, 0); this.numericupdown1.valuechan

18、ged += new system.eventhandler(this.numericupdown1_valuechanged); / cbbold this.cbbold.autosize = true; this.cbbold.location = new system.drawing.point(50, 41); this.cbbold.name = cbbold; this.cbbold.size = new system.drawing.size(48, 16); this.cbbold.tabindex = 3; this.cbbold.text = 粗體; this.cbbold

19、.usevisualstylebackcolor = true; this.cbbold.checkedchanged += new system.eventhandler(this.cbbold_checkedchanged); / cbitalic this.cbitalic.autosize = true; this.cbitalic.location = new system.drawing.point(50, 81); this.cbitalic.name = cbitalic; this.cbitalic.size = new system.drawing.size(48, 16)

20、; this.cbitalic.tabindex = 4; this.cbitalic.text = 斜體; this.cbitalic.usevisualstylebackcolor = true; this.cbitalic.checkedchanged += new system.eventhandler(this.cbitalic_checkedchanged); / cbunderline this.cbunderline.autosize = true; this.cbunderline.location = new system.drawing.point(50, 121); t

21、his.cbunderline.name = cbunderline; this.cbunderline.size = new system.drawing.size(60, 16); this.cbunderline.tabindex = 5; this.cbunderline.text = 下劃線; this.cbunderline.usevisualstylebackcolor = true; this.cbunderline.checkedchanged += new system.eventhandler(this.cbunderline_checkedchanged); / ric

22、htextbox1 this.richtextbox1.location = new system.drawing.point(0, 0); this.richtextbox1.name = richtextbox1; this.richtextbox1.size = new system.drawing.size(640, 200); this.richtextbox1.tabindex = 1; this.richtextbox1.text = ; / form1 this.autoscaledimensions = new system.drawing.sizef(6f, 12f); t

23、his.autoscalemode = system.windows.forms.autoscalemode.font; this.clientsize = new system.drawing.size(641, 404); this.controls.add(this.richtextbox1); this.controls.add(this.groupbox3); this.controls.add(this.groupbox2); this.controls.add(this.groupbox1); this.name = form1; this.text = form1; this.

24、groupbox1.resumelayout(false); this.groupbox1.performlayout(); this.groupbox2.resumelayout(false); this.groupbox3.resumelayout(false); this.groupbox3.performlayout(); (system.componentmodel.isupportinitialize)(this.numericupdown1).endinit(); this.resumelayout(false); #endregion private system.window

25、s.forms.groupbox groupbox1; private system.windows.forms.groupbox groupbox2; private system.windows.forms.groupbox groupbox3; private system.windows.forms.radiobutton rblishu; private system.windows.forms.radiobutton rbsongti; private system.windows.forms.numericupdown numericupdown1; private system

26、.windows.forms.checkbox cbunderline; private system.windows.forms.checkbox cbitalic; private system.windows.forms.checkbox cbbold; private system.windows.forms.richtextbox richtextbox1; 實驗二 圖形圖像編程實驗目的1 掌握graphics類。2 掌握基本的繪圖方法。3 掌握圖像的顯示和處理方法。實驗內容完成畫板應用。在窗體的空白處繪圖，并將圖片保存起來。實驗代碼：using system;using syste

27、m.collections.generic;using system.componentmodel;using system.data;using system.drawing;using system.text;using system.windows.forms;namespace windraw public partial class form1 : form graphics dc; bitmap bmp = new bitmap(800, 800); point p0; point p1; bool ispress = false; public form1() initializ

28、ecomponent(); dc = graphics.fromimage(bmp); private void button1_click(object sender, eventargs e) this.savefiledialog1.filter = bmp圖片|*.bmp; if (this.savefiledialog1.showdialog() = dialogresult.ok) this.bmp.save(this.savefiledialog1.filename); private void drawimage() if (ispress) dc.drawline(pens.

29、red, p0, p1); this.picturebox1.image = bmp; private void picturebox1_mousedown(object sender, mouseeventargs e) p0 = e.location; ispress = true; private void picturebox1_mousemove(object sender, mouseeventargs e) p1 = e.location; drawimage(); p0 = p1; private void picturebox1_mouseup(object sender,

30、mouseeventargs e) p1 = e.location; drawimage(); ispress = false; program：using system;using system.collections.generic;using system.windows.forms;namespace windraw static class program / 應用程序的主入口點。 stathread static void main() application.enablevisualstyles(); application.setcompatibletextrenderingd

31、efault(false); application.run(new form1(); forml .designernamespace windraw partial class form1 / 必需的設計器變量。 private system.componentmodel.icontainer components = null; / 清理所有正在使用的資源。 / 如果應釋放托管資源，為 true；否則為 false。 protected override void dispose(bool disposing) if (disposing & (components != null) c

32、omponents.dispose(); base.dispose(disposing); #region windows 窗體設計器生成的代碼 / 設計器支持所需的方法 - 不要 / 使用代碼編輯器修改此方法的內容。 private void initializecomponent() this.picturebox1 = new system.windows.forms.picturebox(); this.button1 = new system.windows.forms.button(); this.savefiledialog1 = new system.windows.forms

33、.savefiledialog(); (system.componentmodel.isupportinitialize)(this.picturebox1).begininit(); this.suspendlayout(); / picturebox1 this.picturebox1.backcolor = system.drawing.color.white; this.picturebox1.location = new system.drawing.point(0, 0); this.picturebox1.name = picturebox1; this.picturebox1.

34、size = new system.drawing.size(517, 361); this.picturebox1.tabindex = 0; this.picturebox1.tabstop = false; this.picturebox1.mousedown += new system.windows.forms.mouseeventhandler(this.picturebox1_mousedown); this.picturebox1.mousemove += new system.windows.forms.mouseeventhandler(this.picturebox1_m

35、ousemove); this.picturebox1.mouseup += new system.windows.forms.mouseeventhandler(this.picturebox1_mouseup); / button1 this.button1.location = new system.drawing.point(0, 367); this.button1.name = button1; this.button1.size = new system.drawing.size(75, 23); this.button1.tabindex = 1; this.button1.t

36、ext = 保存; this.button1.usevisualstylebackcolor = true; this.button1.click += new system.eventhandler(this.button1_click); / form1 this.autoscaledimensions = new system.drawing.sizef(6f, 12f); this.autoscalemode = system.windows.forms.autoscalemode.font; this.clientsize = new system.drawing.size(517,

37、 392); this.controls.add(this.button1); this.controls.add(this.picturebox1); this.name = form1; this.text = form1; (system.componentmodel.isupportinitialize)(this.picturebox1).endinit(); this.resumelayout(false); #endregion private system.windows.forms.picturebox picturebox1; private system.windows.

38、forms.button button1; private system.windows.forms.savefiledialog savefiledialog1; 實驗三 數(shù)據(jù)庫編程實驗目的1 理解ado.net對象模型。2 熟悉常用數(shù)據(jù)邦定控件的使用方法。實驗內容完成簡單學生信息系統(tǒng)，能夠查詢學生信息，增、刪、改學生信息。實驗代碼：formlusing system;using system.collections.generic;using system.componentmodel;using system.data;using system.drawing;using system.

39、text;using system.windows.forms;using system.data.sqlclient;namespace winstudb public partial class form1 : form sqlhelper helper = new sqlhelper(); public form1() initializecomponent(); private void form1_load(object sender, eventargs e) dataset ds; /ds=helper.selectsqlreturndataset(select * from s

40、tudent); /string cmdtext = select * from student where ssex=ssex and sno=sno; /string ssex; /ssex = 男; /string sno; /sno = 1; /sqlparameter pars = new sqlparameter / / new sqlparameter(ssex,ssex), / new sqlparameter(sno,sno) /; /ds = helper.selectsqlreturndataset(cmdtext, pars, commandtype.text); ds

41、 = helper.selectsqlreturndataset(select * from student, null, commandtype.text); this.datagridview1.datasource = ds.tables0; private void datagridview1_cellclick(object sender, datagridviewcelleventargs e) /this.datagridview1.currentrow.selected = true; binddata(); private void btadd_click(object se

42、nder, eventargs e) string sql = insert into student(sno,sname,ssex) values ( sno, sname, ssex); sqlparameter pars= new sqlparameter new sqlparameter(sno,tbsno.text), new sqlparameter(sname,tbsname.text), new sqlparameter(ssex,tbssex.text) ; int count = helper.executesqlreturnint(sql, pars, commandtype.text); if (count 0) this.datagridview1.datasource = helper.selectsqlreturndataset(select * from student).tables0; messagebox.show(添加成功); private void datagridview1_celldoubleclick(object sender, datagrid