How to add check box in a datagrid in windows application

How to add check box in a datagrid in windows application (C# 1.14).


I have created a windows application which consists of data grid with data set . now i need to include a check box in the same grid...

The row which has selected check box need to perform some action...

can some one help me out please....


thanks in advance.....

Hi,

You have to use tablestyles while bind the data to grid,
Create DataGridColumnStyle for each column.
for first column if u need check box follow this code.

DataGridTableStyle tblstyle = new DataGridTableStyle();

DataGridBoolColumn chkboxCol=new DataGridBoolColumn();

discontinuedCol.MappingName = "chkbox";

discontinuedCol.HeaderText = "";

discontinuedCol.Width = 30;

chkboxCol.AllowNull = false;

tblstyle .GridColumnStyles.Add(chkboxCol);

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Collections;
using System.Windows.Forms;

namespace datagridexample
{
public partial class Form1 : Form
{
public Form1(ArrayList items, ArrayList op)
{
InitializeComponent();
this.LlenarDG(this.dataGrid1, items, op);
}
private void LlenarDG(DataGrid dg, ArrayList items, ArrayList op)
{
//limpiar el dg por si tiene algo
dg.DataSource = null;
DataTable dt = new DataTable("Listado");
DataColumn[] collumns = new DataColumn[op.Count +1];
collumns[0] = new DataColumn("Item", typeof(string));
dt.Columns.Add(collumns[0]);
for (int i = 0; i < op.Count; i++)
{
string text = (string)op[i];
dt.Columns.Add(new DataColumn(text, typeof(bool)));
}
DataSet ds = new DataSet();
ds.Tables.Add(dt);
dg.SetDataBinding(ds, "Listado");
AddData(dt,items);
//ajustar el tamano de las columnas
this.SizeColumnsToContent(dg,op.Count,dg.Width);
}
public void SizeColumnsToContent(DataGrid dataGrid, int CantidadColumnas, int AnchoControl)
{
// Create graphics object for measuring widths.
Graphics Graphics = dataGrid.CreateGraphics();

// Define new table style.
DataGridTableStyle tableStyle = new DataGridTableStyle();

try
{
DataTable dataTable = ((DataSet)dataGrid.DataSource).Tables[0];
// Clear any existing table styles.
dataGrid.TableStyles.Clear();
// Use mapping name that is defined in the data source.
tableStyle.MappingName = dataTable.TableName;

// Now create the column styles within the table style.
//DataGridTextBoxColumn columnStyle;
int iWidth = (AnchoControl - 70) / CantidadColumnas;
// Create the style for the first collumn
DataColumn dataColumn = dataTable.Columns[0];
DataGridTextBoxColumn columnStyle = new DataGridTextBoxColumn();
columnStyle.TextBox.Enabled = true;
columnStyle.HeaderText = dataColumn.ColumnName;
columnStyle.MappingName = dataColumn.ColumnName;
// Set width to header text width.
iWidth = (int)(Graphics.MeasureString(columnStyle.HeaderText, dataGrid.Font).Width);
// Change width, if data width is wider than header text width.
// Check the width of the data in the first X rows.
DataRow dataRow;
for (int iRow = 0; iRow < dataTable.Rows.Count; iRow++)
{
dataRow = dataTable.Rows[iRow];

if ( dataRow[dataColumn.ColumnName] != null)
{
int iColWidth = (int)(Graphics.MeasureString(dataRow.
ItemArray[0].ToString(),
dataGrid.Font).Width);
iWidth = (int)System.Math.Max(iWidth, iColWidth);
}
}
columnStyle.Width = iWidth+2;
// Add the new column style to the table style.
tableStyle.GridColumnStyles.Add(columnStyle);

// Create the style for the rest of the collumns
DataGridBoolColumn columnStyle1 = new DataGridBoolColumn();
for (int iCurrCol = 1; iCurrCol < dataTable.Columns.Count;
iCurrCol++)
{
dataColumn = dataTable.Columns[iCurrCol];

columnStyle1 = new DataGridBoolColumn();
columnStyle1.HeaderText = dataColumn.ColumnName;
columnStyle1.MappingName = dataColumn.ColumnName;
//columnStyle1.FalseValue = false;
//columnStyle1.TrueValue = true;
// Set width to header text width.
iWidth = (int)(Graphics.MeasureString(columnStyle1.HeaderText,
dataGrid.Font).Width);

// Change width, if data width is wider than header text width.
// Check the width of the data in the first X rows.
for (int iRow = 0; iRow < dataTable.Rows.Count; iRow++)
{
dataRow = dataTable.Rows[iRow];
if (null != dataRow[dataColumn.ColumnName])
{
int iColWidth = (int)(Graphics.MeasureString(dataRow.
ItemArray[iCurrCol].ToString(),
dataGrid.Font).Width);
iWidth = (int)System.Math.Max(iWidth, iColWidth);
}
}
columnStyle1.Width = iWidth+2;
// Add the new column style to the table style.
tableStyle.GridColumnStyles.Add(columnStyle1);
}
// Add the new table style to the data grid.
dataGrid.TableStyles.Add(tableStyle);
//dataGrid.Width =
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
Graphics.Dispose();
}
}
private void AddData(DataTable t, ArrayList i)
{
// Add data with for the id field.
DataRow row;
foreach (string s in i)
{
row = t.NewRow();
row["Item"] = s;
t.Rows.Add(row);
}
t.AcceptChanges();
}
}

}

:):):)