how to display selected value of data table row of particular column in message box

Question

4.50/5 (2 votes)

See more:

VS2008

I have data grid with five column such as Icon,position,name,gender,status..and i have assign the context menu on thata data grid..whenever i right click on context menu i want to display in message box selected row student name..to add value in data grid i am using data table..what shoul i do..
my code is
window1.xaml

<pre lang="xml"><Window x:Class="datagridimg.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="347" Width="457" xmlns:my="http://schemas.microsoft.com/wpf/2008/toolkit">
    <Grid>
        <my:DataGrid  MouseRightButtonUp="dgData_MouseRightButtonUp" AutoGenerateColumns="False" Margin="12,12,26,105" Name="dataGrid1" >
            <my:DataGrid.ContextMenu>

                <ContextMenu>
                    <MenuItem Header="Add" Click="Ass_Game">
                    </MenuItem>
                </ContextMenu>
            </my:DataGrid.ContextMenu>
            <my:DataGrid.Columns>
                <my:DataGridTemplateColumn Header="Icon" Width="50" IsReadOnly="True" >
                    <my:DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Image Source="{Binding Path=ImgPath}" Width="20" Height="20"/>
                        </DataTemplate>
                    </my:DataGridTemplateColumn.CellTemplate>
                </my:DataGridTemplateColumn>
                <my:DataGridTextColumn Header="Position"  Binding="{Binding Path=PO}"   />
                <my:DataGridTextColumn Header=" Name" Binding="{Binding Path=NA}"  />
                <my:DataGridTextColumn Header="Gender" Binding="{Binding Path=GE}"  />
                <my:DataGridTextColumn Header="Status" Binding="{Binding Path=ST}"  />
                <my:DataGridTextColumn Header="Machine" Binding="{Binding Path=MA}"  />
            </my:DataGrid.Columns>
        </my:DataGrid>
        <Image HorizontalAlignment="Left" Margin="50,0,0,39" Name="image1" Stretch="Fill" Width="49" Height="42" VerticalAlignment="Bottom" Source="/datagridimg;component/image/offline.png" />
    </Grid>
</Window

>

window1.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Data;

namespace datagridimg
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        DataTable dt;
        public Window1()
        {
            InitializeComponent();
           
            dt = new DataTable();
            dt.Columns.Add("PO");
            dt.Columns.Add("NA");
            dt.Columns.Add("GE");
            dt.Columns.Add("ST");
            dt.Columns.Add("MA");
            dt.Columns.Add("ImgPath", typeof(BitmapImage));

            DataRow dr = dt.NewRow();
            dr[0] = "5";
            dr[1] = "SAM";
            dr[2] = "Male";
            dr[3] = "Offline";
            dr[4] = "Online";
            dr[5] = new BitmapImage(new Uri("/datagridimg;component/image/offline.png", UriKind.RelativeOrAbsolute));
            dt.Rows.Add(dr);

            dr = dt.NewRow();
            dr[0] = "3";
            dr[1] = "RAM";
            dr[2] = "Male";
            dr[3] = "Offline";
            dr[4] = "Online";
            dr[5] = new BitmapImage(new Uri("/datagridimg;component/image/offline.png", UriKind.RelativeOrAbsolute));
            dt.Rows.Add(dr);


           
            dataGrid1.ItemsSource = dt.DefaultView;
        }
        private void dgData_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
        {
            ContextMenu cxMenu = new ContextMenu();


        }
        private void Ass_Game(object sender, RoutedEventArgs e)
        {
           
           MessageBox.Show("Name of Student???????");
         
  
        }


           
        }//context menu

    }
}

Posted 1-Jun-11 20:42pm

vishal_h

Updated 1-Jun-11 21:00pm

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Wayne Gaylard · Answer 1 · 2011-06-01T21:32:00

When you bind the DataGrid to the DataTable you need to set the DataGrid's SelectedValuePath to the Name column like this

C#

dr[5] = new BitmapImage(new Uri("/datagridimg;component/image/offline.png", UriKind.RelativeOrAbsolute));
           dt.Rows.Add(dr);
           dataGrid1.ItemsSource = dt.DefaultView;
           dataGrid1.SelectedValuePath = "NA";
       }

Then you can just reference the SelectedValue from the ContextMenu like this

C#

private void Ass_Game(object sender, RoutedEventArgs e)
        {
            MessageBox.Show(dataGrid1.SelectedValue.ToString());
        }

Be aware that if your DataGrid's SelectionMode is set to Extended then this will return the Name of the first selected row. If the SelectionMode is set to single, it obviously will return only the selected row's name.

Hope this helps

Marrakech · Answer 2 · 2011-06-01T23:12:00

Hi.

I can propose this solution:

1. Move context menu to the DataGrid Resources and put relativesource binding.
2. Assign context menu to the DataGridRow using DataGrid.ItemContainerStyle.
3. Change Ass_Game handler accordingly.
4. Remove dgData_MouseRightButtonUp event handler

See xaml example below:

XML

<my:DataGrid  AutoGenerateColumns="False" Margin="12,12,26,105" Name="dataGrid1" >
        <my:DataGrid.Resources>
            <ContextMenu x:Key="contextMenu">
                <MenuItem Header="Add" Click="Ass_Game"
                          Tag="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ContextMenu}}, Path=PlacementTarget.Item}">
                </MenuItem>
            </ContextMenu>
        </my:DataGrid.Resources>
        <my:DataGrid.Columns>
            <my:DataGridTemplateColumn Header="Icon" Width="50" IsReadOnly="True" >
                <my:DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Image Source="{Binding Path=ImgPath}" Width="20" Height="20"/>
                    </DataTemplate>
                </my:DataGridTemplateColumn.CellTemplate>
            </my:DataGridTemplateColumn>
            <my:DataGridTextColumn Header="Position"  Binding="{Binding Path=PO}"   />
            <my:DataGridTextColumn Header=" Name" Binding="{Binding Path=NA}"  />
            <my:DataGridTextColumn Header="Gender" Binding="{Binding Path=GE}"  />
            <my:DataGridTextColumn Header="Status" Binding="{Binding Path=ST}"  />
            <my:DataGridTextColumn Header="Machine" Binding="{Binding Path=MA}"  />
        </my:DataGrid.Columns>
        <my:DataGrid.ItemContainerStyle>
            <Style>
                <Setter Property="my:DataGridRow.ContextMenu" Value="{StaticResource ResourceKey=contextMenu}"></Setter>
            </Style>
        </my:DataGrid.ItemContainerStyle>
    </my:DataGrid>

Ass_Game Handler example:

private void Ass_Game(object sender, RoutedEventArgs e)
{
   MenuItem item = sender as MenuItem;
   if (item == null)
   {
     return;
   }

   DataRowView view = item.Tag as DataRowView;
   if (view == null)
   {
     return;
   }

   MessageBox.Show(view["NA"].ToString());
}

Have fun!!

how to display selected value of data table row of particular column in message box

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0