DataGridView

C#: Update DatagridView Cell style based on row data

Categories: Development Notes; Tagged with: .Net • C# • DataGridView; @ January 16th, 2013 17:58

Requirement

Change the cell background colour to red when the data…

Solution

Listening to the DataGridView.CellFormatting Event, based on the data, update the cell style in runtime.

Details

1. Add Listener:

 this.dataGridViewForLogs.CellFormatting += new System.Windows.Forms.DataGridViewCellFormattingEventHandler(this.dataGridViewForLogs_CellFormatting);

2. The hanlder:

        private void dataGridViewForLogs_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (e.Value == null)
            {
                return;
            }

            if (dataGridViewForLogs.Columns[e.ColumnIndex].Name.Equals("result"))
            {
                String logResult = e.Value.ToString();
                if (logResult != null && logResult.Contains("FAIL"))
                {
                    e.CellStyle.BackColor = Color.Red;
                    e.CellStyle.ForeColor = Color.White;
                    e.CellStyle.SelectionBackColor = Color.Navy;
                    return;
                }
            } 
            e.CellStyle.BackColor = Color.White;

        }

links:

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellformatting.aspx

C#: Using DataGridView

Categories: Development Notes; Tagged with: .Net • C# • DataGridView; @ January 16th, 2013 17:34

Requirement:

Display data in datagrid.

Solution:

Use C# DataGridView, and put all objects in one list, assign the list as the datagrid’s DataSource.

Details

0. Prepare the Class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SSISHelper.com.liguoliang.ssis.util
{

    class LogResult
    {
        public LogResult(String result, TimeSpan timeSpan, DateTime dateTime, String logName)
        {
            this.result = result;
            this.timeSpan = timeSpan;
            this.dateTime = dateTime;
            this.logName = logName;
        }
            
        public String result { get; set; }
        public TimeSpan timeSpan { get; set; }
        public DateTime dateTime { get; set; }
        public String logName { get; set; }
    }
}

1. Drag one DataGridView, create columns:

            this.tabPage2.Controls.Add(this.dataGridViewForLogs);
this.dataGridViewForLogs.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.result,
            this.TimeSpan,
            this.DateTime,
            this.LogFile});

this.dataGridViewForLogs.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
            this.result,
            this.TimeSpan,
            this.DateTime,
            this.LogFile});

2. Set the datasource:

        private void btnAnalysisLogs_Click(object sender, EventArgs e)
        {
            dataGridViewForLogs.DataSource = LogUtils.analysisLogs(textBoxPath.Text);
        }

// Generate the list
 public static ArrayList analysisLogs(String rootPath)
 {
            ArrayList listLogResults = new ArrayList();

            
            foreach (String pathLogFile in logFiles)
            {
              LogResult logResult = new LogResult(strLogResult, span, File.GetLastWriteTime(pathLogFile), diLog.Name);
                listLogResults.Add(logResult);
            }

            return listLogResults;
        }