如何选择整个DataGrid表行并使用WPF单击按钮将其删除 [英] How to select a entire DataGrid Table Row and delete it in a button click using WPF

问题描述

嗨

我是WPF的新手，任何人都可以解释我如何选择一个DataGrid表行并使用WPFin MVVM模式在按钮单击中删除它。





我可以通过点击按钮来删除行，只需通过对值进行硬编码。

 HostSystemInformation info =（ from  sysinfo  in  systemInformation 
 其中​​ sysinfo.Sno ==  4  
 选择 sysinfo ）。第一（）; 
 

从上面的代码我只能删除第4行。当我在datagrid表中选择一个行时，我想要在变量中获得值的解决方案。我想使用那个变量而不是硬编码的值4.这个编码没有在代码隐藏中完成，在单独的ModalView文件中完成



我已将我的代码复制到某人下面解决方案。



XAML：

< Button Content =  删除 Command =   {Binding DeleteIp} Grid.Row =   0 Grid.Column =   1 FontFamily =   Ebrima FontSize =   12宽度= < span class =code-string>  61高度=   25 Horizo​​ntalAlignment =   right VerticalAlignment =   center /> 
< DataGrid Name =   datagridIpTable ItemsSource =   {Binding SystemInformation} SelectedItem =   {Binding Path = SelectedCustomer，Mode = TwoWay} AutoGenerateColumns =   false Grid.Row =   1 Grid.Column =    1 CanUserAddRows =   False  >  
< DataGrid.Columns >  
< ; DataGridTextColumn Binding =   {Binding Sno}标题=    S.No MinWidth =   50 /> 
< DataGridTextColumn Binding =   {Binding strIpAddr} Header =  系统名称 MinWidth =   240 /> 
< DataGridTextColumn Binding =   {Binding strSystemName} Header =   IP地址 MinWidth =   240 /> 
< DataGridTextColumn Binding =   {Binding strStatus} Header =  状态 MinWidth =   140 /> 
 < /   DataGrid.Columns  >  
 < /   DataGrid   >  

 rivate DelegateCommand deleteIp; 
 
  public  DelegateCommand DeleteIp 
 {
  get  {  return  deleteIp; } 
  set  {deleteIp =  value ; } 
} 
 
  private  ObservableCollection< HostSystemInformation> systemInformation; 
 
  public  ObservableCollection< HostSystemInformation> SystemInformation 
 {
  get  { return  systemInformation; } 
  set  {SetProperty（ ref  systemInformation，值）; } 
} 
 
  public  UserBase_ViewModal（）
 {
 SystemInformation =  new  ObservableCollection< HostSystemInformation>（）; 
 deleteIp =  new  DelegateCommand（DeleteSystemInformationInIpTable）; 
} 
 
  private   void  DeleteSystemInformationInIpTable（）
 {
 尝试 
 {
  if （systemInformation.Count> 0 ）
 {
  int  count =  0 ; 
  foreach （ object  eno  in  systemInformation）
 {
 HostSystemInformation info =（ from  sysinfo  in  systemInformation 
 其中 sysinfo.Sno ==  4  
 选择 sysinfo）.First（）;  / *  这里不是第4行我需要按任意行动态传递变量* /  
 systemInformation.Remove（info）; 
 count ++; 
} 
} 
} 
  catch （例外情况）
 {
  //   MessageBox.Show（ex.Message）;  
} 
} 
 
  public   class  HostSystemInformation 
 {
  public   int  Sno { get ;  set ; } 
  public   string  strIpAddr { get ;  set ; } 
  public   string  strSystemName { get ;  set ; } 
  public   string  strStatus { get ;  set ; } 
} 

在此先感谢.. 。





问候

R.Karthik

解决方案

请看这个链接..



http://www.aspsnippets.com/Articles/Selecting-GridView-Row-by-clicking-anywhere-on-the-Row.aspx [ ^ ]

Hi
I'm new to WPF can anyone explain me how to select a DataGrid Table Row and delete it in a button click using WPFin MVVM modal.


I can remove the row by button click, only by hard coding the value.

HostSystemInformation info = (from sysinfo in systemInformation
                                    where sysinfo.Sno == 4
                                    select sysinfo).First();

From above code i can delete only 4th row. I want solution to GET VALUE IN A VARIABLE WHEN I SELECT A ROW in datagrid table. I want to use that variable instead of hardcoded value 4. This coding not done in code-behind, done in seperate ModalView file

I have copied my code below someone give a solution for this.

XAML:

<Button Content="Remove" Command="{Binding DeleteIp}" Grid.Row="0" Grid.Column="1" FontFamily="Ebrima" FontSize="12" Width="61" Height="25" HorizontalAlignment="right" VerticalAlignment="center"/>
<DataGrid  Name="datagridIpTable"  ItemsSource="{Binding SystemInformation}"  SelectedItem="{Binding Path=SelectedCustomer, Mode=TwoWay}" AutoGenerateColumns="false"  Grid.Row="1" Grid.Column="1" CanUserAddRows="False" >
    <DataGrid.Columns >
        <DataGridTextColumn Binding="{Binding Sno}"  Header="S.No" MinWidth="50" />
        <DataGridTextColumn Binding="{Binding strIpAddr}" Header="System Name" MinWidth="240"/>
        <DataGridTextColumn Binding="{Binding strSystemName}" Header="IP Address" MinWidth="240"/>
        <DataGridTextColumn Binding="{Binding strStatus}" Header="Status" MinWidth="140" />
    </DataGrid.Columns>
</DataGrid>

rivate DelegateCommand deleteIp;

public DelegateCommand DeleteIp
{
    get { return deleteIp; }
    set { deleteIp = value; }
}

private ObservableCollection<HostSystemInformation> systemInformation;

public ObservableCollection<HostSystemInformation> SystemInformation
{
    get { return systemInformation; }
    set { SetProperty(ref systemInformation, value); }
}

public UserBase_ViewModal()
{
    SystemInformation = new ObservableCollection<HostSystemInformation>();
    deleteIp = new DelegateCommand(DeleteSystemInformationInIpTable);
}

private void DeleteSystemInformationInIpTable()
{
    try
    {        
        if(systemInformation.Count>0)
        {
            int count=0;
            foreach (object eno in systemInformation)
            {
                HostSystemInformation info = (from sysinfo in systemInformation
                                     where sysinfo.Sno == 4 
                                     select sysinfo).First(); /*Here instead of 4th row i need to pass variable dynamically by pressing any row */
                systemInformation.Remove(info);
                count++;
            }
        }
    }
    catch (Exception ex)
    {
        // MessageBox.Show(ex.Message);
    }
}

public class HostSystemInformation
{
    public int Sno { get; set; }
    public string strIpAddr { get; set; }
    public string strSystemName { get; set; }
    public string strStatus { get; set; }
}

Thanks in Advance...


Regards
R.Karthik

解决方案

Please see this link..

http://www.aspsnippets.com/Articles/Selecting-GridView-Row-by-clicking-anywhere-on-the-Row.aspx[^]

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