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POticker and dataset datagrid view c#
 

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  1. POticker and dataset datagrid view c#
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    <p>I modified the code, but I m still in trouble, all it's fine. Except when I modify the data into the XML file, the application crash. it Should be refresh the datagridview when I modify the data into the xml file.</p> <pre><code>using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Xml.Linq; using System.IO; using System.Threading; using System.Reflection; namespace XML { public partial class Form1 : Form { DataSet formBindingSource = null; public Form1() { InitializeComponent(); // formBindingSource = new DataSet(); using (FileStream stream1 = new FileStream("c:\\sites.xml", FileMode.Open)) { formBindingSource.ReadXml(stream1); } this.UpdateDataGrid(); dataGridView1.DataSource = formBindingSource.Tables[0]; // this.timer1.Enabled = true; this.timer1.Interval = 1000; this.timer1.Tick += new System.EventHandler(this.timer1_Tick); FileSystemWatcher incoming = new FileSystemWatcher(); incoming.Path = @"c:\"; incoming.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName; incoming.Filter = "sites.xml"; incoming.Changed += new FileSystemEventHandler(OnChanged); incoming.EnableRaisingEvents = true; // // } public void OnChanged(object source, FileSystemEventArgs e) { using (FileStream stream1 = new FileStream("c:\\sites.xml", FileMode.Open)) { formBindingSource.ReadXml(stream1); } this.UpdateDataGrid(); dataGridView1.DataSource = formBindingSource.Tables[0]; } public void UpdateDataGrid() { if (this.InvokeRequired) { this.Invoke((MethodInvoker)delegate { UpdateDataGrid(); }); } else { //refresh column status evry second int count = 0; foreach (DataRow dr in formBindingSource.Tables[0].Rows) { DateTime SystemTime = Convert.ToDateTime(DateTime.Now); DateTime StartTime = Convert.ToDateTime(dr[0]); DateTime EndTime = Convert.ToDateTime(dr[1]); if (StartTime.TimeOfDay.Ticks &lt;= SystemTime.TimeOfDay.Ticks &amp;&amp; SystemTime.TimeOfDay.Ticks &lt; EndTime.TimeOfDay.Ticks) { formBindingSource.Tables[0].Rows[count][5] = "ok"; } else { formBindingSource.Tables[0].Rows[count][5] = "nok"; } count++; } formBindingSource.Tables[0].DefaultView.RowFilter = "date = #" + DateTime.Today + "#"; } } private void timer1_Tick(object sender, EventArgs e) { this.UpdateDataGrid(); this.label1.Text = DateTime.Now.ToString("dddd, MMMM dd, yyyy hh:mm:ss tt"); } } } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser1112847
    1. USuser1112847
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    2. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. CONot related to your problem, but do you need to reload the dataset in the UpdateDataGrid method? From the look of your code you probably just need to do that in the file system watcher OnChange event.
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      1. POticker and dataset datagrid view c#
      1. USMike Hanrahan
 

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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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