WinForm&&DEV知识小结
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1、父窗体Form1中调用子窗体Form2代码：
Form2 fr = new Form2(); this.hide(); fr.ShowDialog(this);
2、子窗体的FormClosed事件代码：
private void Form2_FormClosed(object sender, FormClosedEventArgs e) { Login login = (Login)this.Owner; login.Dispose(); login.Close(); }
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winform无边框拖动窗体
private Point mPoint = new Point(); private void Form1_MouseDown(object sender, MouseEventArgs e) { mPoint.X = e.X; mPoint.Y = e.Y; } private void Form1_MouseMove(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { Point myPosittion = MousePosition; myPosittion.Offset(-mPoint.X, -mPoint.Y); Location = myPosittion; } }
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读取datatable 几种方法
1，for (int i = 0; i< dt.rows.count; i++) { string strname = dt.rows[i]["字段名"].tostring(); } 2, foreach(datarow myrow in mydataset.tables["temp"].rows) { var str = myrow[0].tostring(); } 3,foreach(datarow dr in dt.rows) { object value = dr["columnsname"]; } 4, Datatable.select("kymd>'2011-11-5' or kymd is null")
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datatable 合并
//前提：dt1和dt2表结构相同 foreach (DataRow dr in dt2.Rows) dt1.Rows.Add(dr.ItemArray); //绑定表格 dataGridView1.DataSource = dt1; ---------------------------------------------------------------------------------- 修改datatable中的列名称 MyDt.Columns["xx"].ColumnName = "aa";
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用dictionary写键值对添加到datatable中 绑定combox显示值与属性值
//初始化下拉框值 Dictionary<string, string> dic = new Dictionary<string, string>(); dic.Add("气压", "AIRP"); dic.Add("气温", "ATMP"); dic.Add("湿度", "RHU"); dic.Add("降水", "ACCP"); dic.Add("风速", "WIN"); dic.Add("日照", "SSD"); dic.Add("地温", "GST"); dic.Add("蒸发", "ACCE"); DataTable dt = new DataTable(); dt.Columns.Add("key"); dt.Columns.Add("name"); foreach (var item in dic) { DataRow dr = dt.NewRow(); dr["key"] = item.Key; dr["name"] = item.Value; dt.Rows.Add(dr); } this.cmbType.DataSource = dt; this.cmbType.DisplayMember = "key"; this.cmbType.ValueMember = "name";
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Dev
1、 如何解决单击记录整行选中的问题
View->OptionsBehavior->EditorShowMode 设置为：Click
4、如何让行只能选择而不能编辑（或编辑某一单元格）
(1)、View->OptionsBehavior->EditorShowMode 设置为：Click
(2)、View->OptionsBehavior->Editable 设置为：false
5、如何禁用 GridControl 中单击列弹出右键菜单
设置 Run Design->OptionsMenu->EnableColumnMenu 设置为：false
6、如何隐藏 GridControl 的 GroupPanel 表头
设置 Run Design->OptionsView->ShowGroupPanel 设置为：false
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Winfrom 与flash交互
//获取自定义事件 axShockwaveFlash1.FlashCall += new AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEventHandler(axShockwaveFlash1_FlashCall); //鼠标点击弹出信息 public void axShockwaveFlash1_FlashCall(object sender, AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEvent e) { XmlDocument document = new XmlDocument(); document.LoadXml(e.request); XmlAttributeCollection attributes = document.FirstChild.Attributes; string command = attributes.Item(0).InnerText; MessageBox.Show(command); }
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WinForm设置全局皮肤 skin
//设置skin皮肤全局 string path = Application.StartupPath + @"\skin\Warm\WarmColor3.ssk"; se = new Sunisoft.IrisSkin.SkinEngine(); se.SkinAllForm = true; se.SkinFile = path; this.StartPosition = FormStartPosition.CenterScreen;
修改界面图标
string iconPath = Application.StartupPath + @"\image\a.ico"; this.Icon = new Icon(iconPath);
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Winform窗体淡入淡出效果
(百度来的)
[System.Runtime.InteropServices.DllImport("user32.dll")] private static extern bool AnimateWindow(IntPtr whnd, int dwtime, int dwflag); //dwflag的取值如下 public const Int32 AW_HOR_POSITIVE = 0x00000001; //从左到右显示 public const Int32 AW_HOR_NEGATIVE = 0x00000002; //从右到左显示 public const Int32 AW_VER_POSITIVE = 0x00000004; //从上到下显示 public const Int32 AW_VER_NEGATIVE = 0x00000008; //从下到上显示 public const Int32 AW_CENTER = 0x00000010; //若使用了AW_HIDE标志，则使窗口向内重叠，即收缩窗口；否则使窗口向外扩展，即展开窗口 public const Int32 AW_HIDE = 0x00010000; //隐藏窗口，缺省则显示窗口 public const Int32 AW_ACTIVATE = 0x00020000; //激活窗口。在使用了AW_HIDE标志后不能使用这个标志 public const Int32 AW_SLIDE = 0x00040000; //使用滑动类型。缺省则为滚动动画类型。当使用AW_CENTER标志时，这个标志就被忽略 public const Int32 AW_BLEND = 0x00080000; //透明度从高到低 private void MainFM_Load(object sender, EventArgs e) { //淡入效果 AnimateWindow(this.Handle, 3000, AW_BLEND | AW_ACTIVATE); } private void MainFM_FormClosing(object sender, FormClosingEventArgs e) { //淡出 AnimateWindow(this.Handle, 3000, AW_BLEND | AW_HIDE); }
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Dev中的 GridControl
固定某一列始终显示
BandedGridView view = advBandedGridView1 as AdvBandedGridView; GridBand bindSTCD = view.Bands.AddBand("站点信息"); bindSTCD.Fixed = FixedStyle.Left;
设置某列的Fixed 的属性为Left即可
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保留小数
string result = String.Format("{0:N2}", 0.55555);//N几就几位
注意：后面必须跟数字类型的变量不能是string等字符串
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指定DateTime显示时间
this.xxx.DateTime = New DateTime(2004,1,1);
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获得文件夹下的所有文件名称
string btopPath = Application.StartupPath + @"\SaveData\BTOP"; DirectoryInfo mydir = new DirectoryInfo(btopPath); foreach (FileInfo item in mydir.GetFiles()) { MessageBox.Show(item.FullName); }
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遍历文件夹下所有文件，并读取三行，匹配xxx是个数字组成的项
private static void LoadTime(int time1, int time2) { string btopPath = Application.StartupPath + @"\SaveData\BTOP"; DirectoryInfo mydir = new DirectoryInfo(btopPath); string data = ""; foreach (FileInfo item in mydir.GetFiles()) { using (StreamReader sr = new StreamReader(item.FullName)) { for (int i = 0; i < 3; i++) { data += sr.ReadLine() + " "; } string rege = @"\d{10}"; bool b = true; foreach (Match mm in Regex.Matches(data, rege, RegexOptions.IgnoreCase)) { if (b == true) { b = false; time1 = int.Parse(mm.Value); time1 = int.Parse(time1.ToString().Substring(0, 4)); } else { time2 = int.Parse(mm.Value); time2 = int.Parse(time2.ToString().Substring(0, 4)); }
}
}
//MessageBox.Show(mydir.FullName);
}
}