在线时间:8:00-16:00
迪恩网络APP
随时随地掌握行业动态
扫描二维码
关注迪恩网络微信公众号
前段时间,帮朋友用C#做了一个小玩意儿,在开发过程中,发现很多用的着的东西,在网上都没有很好的解决方案,前前后后折腾了近一个月,总算是基本上完成了,在此整理下,权作以后再用到时复习之用。 这个东西有点像星座性格测试那种的,只不过是要C/S的,安装到客户端上,所以做起来限制比较多。首先要有数据录入的功能,提供界面,用户要能向其中录入数据,比如星座测试一条一条的题目;然后要对每个题目,提出相应的反馈、建议;最后,录入完成了,用户还要能够有个界面对指定的数据库进行增删改查:前面是录入的功能。在用户性格测试的时候,要有窗口完成答题,并在提交后,查看测试的结果,有打分,有整体评价,并且对于那些答得不合适的,还有一些建议。 接下来,我会按不同的模块,说一说我是怎么做的。 (1)数据的存储 由于没有数据库管理系统的支持,我选择XML来保存数据。所以,这一模块就是基本的XML的创建、添加、删除。 (1.1)XML文件的新建 我做的这个玩意儿,用的XML的数据格式比较固定,所以,新建XML文件的时候,大的结构就写死了,不希望,也不会发生改变:
EmptyXmlDocumentCreate
1 this._fileName = fileName;
2 this._xDoc = new XmlDocument(); 3 this._xDoc.LoadXml( 4 "<?xml version=\"1.0\" encoding=\"gb2312\" ?>" + 5 "<root>"+ 6 "<Principles>" + 7 "</Principles>"+ 8 "<Results>"+ 9 "</Results>"+ 10 "</root>" 11 ); 12 try 13 { 14 this._xDoc.Save(fileName); 15 } 16 catch (Exception ex) 17 { 18 MessageBox.Show(ex.Message); 19 } (1.2)向XML文件中的指定位置添加节点 这里要说的是,我要添加的节点的数据结构是<ID,Content,Suggestion>。再者,添加节点的时候,用在树上直接找的办法,比较笨,用xPath会好很多,可惜时间紧没学明白……
addToXMLDocument
1 public void addToXMLDocument(string id, string content, string suggestion)
2 { 3 XmlNode Term = this._xDoc.CreateNode(XmlNodeType.Element, "Term", ""); 4 5 XmlElement ID = this._xDoc.CreateElement("ID"); 6 ID.InnerText = id; 7 Term.AppendChild(ID); 8 9 XmlElement Content = this._xDoc.CreateElement("Content"); 10 Content.InnerText = content; 11 Term.AppendChild(Content); 12 13 XmlElement Suggestion = this._xDoc.CreateElement("Suggestion"); 14 Suggestion.InnerText = suggestion; 15 Term.AppendChild(Suggestion); 16 17 this._xDoc.ChildNodes.Item(1).ChildNodes.Item(0).AppendChild(Term); 18 19 try 20 { 21 this._xDoc.Save(this._fileName); 22 } 23 catch (Exception ex) 24 { 25 MessageBox.Show(ex.Message); 26 } 27 } (1.3)从XML文件中删除指定的节点 在应用中,我是在ListView中把XML的数据打出来,通过勾选CheckBox选定删除的对象。
DeleteNodeFromXmlDocument
1 private void button4_Click(object sender, EventArgs e)
2 { 3 XmlDocument xDoc = new XmlDocument(); 4 xDoc.Load(this._fileName); 5 foreach (ListViewItem lItem in Listview1.Items) 6 { 7 if (lItem.Checked == true) 8 { 9 //int index = Convert.ToInt32(lItem.SubItems[1].Text, 10); 10 foreach (XmlNode xNode in xDoc.ChildNodes.Item(1).ChildNodes.Item(0).ChildNodes) 11 { 12 if (String.Compare(xNode.ChildNodes[0].InnerText, lItem.SubItems[1].Text) == 0) 13 { 14 xDoc.ChildNodes.Item(1).ChildNodes.Item(0).RemoveChild(xNode); 15 } 16 } 17 Listview1.Items.Remove(lItem); 18 } 19 } 20 xDoc.Save(this._fileName); 21 Re_Load(); 22 } (2)动态界面生成 这个算是我在第一阶段遇到的最大的一个问题。作为一个C#的菜鸟,习惯了拖拖拽拽弄出一个窗口界面,当被要求根据用户输入,动态生成界面的时候,直接歇菜了…… 在网上找了很多,可惜很多都不适用,忘记后来是在哪里找到的答案,向那位记不起名儿的童鞋致敬了。 是这样的,所谓的动态生成,就是把原来在Form.Designer.cs中代码,搬到你自己的代码中去。比如,你原来在Form.Designer.cs中有这样的代码
Example: Form.Designer.cs
1 //
2 // button1 3 // 4 this.button1.Location = new System.Drawing.Point(57, 97); 5 this.button1.Name = "button1"; 6 this.button1.Size = new System.Drawing.Size(75, 23); 7 this.button1.TabIndex = 0; 8 this.button1.Text = "button1"; 9 this.button1.UseVisualStyleBackColor = true;
你可以写到你自定义的Button2的Click事件中,这样,在你点击Button2后,就会在窗口上新加一个Button1出来
Example: ButtonClick
1 private void button2_Click(object sender, EventArgs e)
2 { 3 // 4 // button1 5 // 6 this.button1.Location = new System.Drawing.Point(57, 97); 7 this.button1.Name = "button1"; 8 this.button1.Size = new System.Drawing.Size(75, 23); 9 this.button1.TabIndex = 0; 10 this.button1.Text = "button1"; 11 this.button1.UseVisualStyleBackColor = true; 12 this.Controls.Add(this.button1); 13 this.ResumeLayout(false); 14 } (2.1)说一说我自己做的那个东西,我设计如下:在Form中先放好一个大Panel,然后,根据用户输入,动态加入指定个数的组件Component。在每个Component里面,包含一个GroupBox,三个Label,三个TextBox,还有一些坐标的参数。 要说一下,窃以为,动态加入组件,最麻烦的就是算坐标。那么多的东西,你需要事先把每个组件的坐标位置和大小都算好了,然后,你才可以保证你按下“添加”之后,你的组件能按照你想要的方式,呈现在窗口上。所以我对应每一条要添加的数据项,构造了上面的一个Component,然后给每个Component设置索引值,只要得到索引值,那么,这个Component的位置也就确定了。 比较欣慰的是,这个组件的坐标是按相对位置计算的:你设置GroupBox的坐标时,你只要算好你在Panel中的位置就可以了,你不用管Panel在Form的哪里。同样,你的Label,TextBox只要算好在一个200*50的GroupBox中的位置就可以了,剩下的你就不用管了。或许是以前没有注意过这个问题,反正我觉得这一性质在我做的过程中,省了不少的事儿。 这就完了么?No,还有一个我开始都没注意到的问题:最大化。对,你算的坐标是死的,当用户点击“最大化”按钮后,你的界面就会面目全非,所以,这里又要加入一个新的东西:TableLayoutPanel。Yes,需要把前面的那些写死的坐标,都放到这个TableLayoutPanel里面来,设置好每个组件的位置,这样,在“最大化”之后,依然能够保持良好的布局。
Component
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Drawing; using System.Windows.Forms; namespace app01_Generate { class Component { #region 成员变量定义 public static int OFFSET = 3; public static int HEIGHT = 98; private int _weight; private int _index; private GroupBox _gb; private Label _lb1, _lb2, _lb3; private TextBox _tb1, _tb2, _tb3; private TableLayoutPanel _tlp; #endregion public Component(int index,int weight) { this._index = index; this._weight = weight; this._gb = new GroupBox(); this._gb.Location = new Point(3, OFFSET + this._index * HEIGHT); this._gb.Size = new System.Drawing.Size(this._weight, 92); this._gb.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this._tlp = new TableLayoutPanel(); this._tlp.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) | System.Windows.Forms.AnchorStyles.Left) | System.Windows.Forms.AnchorStyles.Right))); this._tlp.ColumnCount = 25; this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 4F)); this._tlp.Location = new System.Drawing.Point(6, 20); this._tlp.Name = "_tlp"; this._tlp.RowCount = 1; this._tlp.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F)); this._tlp.Size = new System.Drawing.Size(this._weight - 12, 66); this._lb1 = new Label(); this._lb1.Anchor = ((System.Windows.Forms.AnchorStyles)(( System.Windows.Forms.AnchorStyles.Right))); this._lb1.AutoSize = true; this._tlp.SetColumnSpan(this._lb1, 2); this._lb1.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this._lb1.Location = new System.Drawing.Point((int)((this._weight - 12) * 8 / 741), 0); this._lb1.Name = "_lb1"; this._lb1.Size = new System.Drawing.Size(47, 19); this._lb1.Text = "ID"; this._lb2 = new Label(); this._lb2.Anchor = ((System.Windows.Forms.AnchorStyles)(( System.Windows.Forms.AnchorStyles.Right))); this._lb2.AutoSize = true; this._tlp.SetColumnSpan(this._lb2, 2); this._lb2.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this._lb2.Location = new System.Drawing.Point((int)((this._weight - 12) * 124 / 741), 0); this._lb2.Name = "_lb2"; this._lb2.Size = new System.Drawing.Size(47, 38); this._lb2.Text = "Content"; this._lb3 = new Label(); this._lb3.Anchor = ((System.Windows.Forms.AnchorStyles)(( System.Windows.Forms.AnchorStyles.Right))); this._lb3.AutoSize = true; this._tlp.SetColumnSpan(this._lb3, 2); this._lb3.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134))); this._lb3.Location = new System.Drawing.Point((int)((this._weight - 12) * 501 / 741), 0); this._lb3.Name = "_lb3"; this._lb3.Size = new System.Drawing.Size(47, 38); this._lb3.Text |
2023-10-27
2022-08-15
2022-08-17
2022-09-23
2022-08-13
请发表评论