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Dynamic grid row count and column count with XAML


Dynamic grid row count and column count with XAML

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Dynamic grid row count and column count with XAML
Tag : chash , By : Matt Logan
Date : November 24 2020, 05:49 AM

With these it helps You have to implement INotifyPropertyChanged on the ViewModel class. In your case you have set "DataContext = this", so you have to implement INotifyPropertyChanged on the UserControl class.
I have defined more or less the minimum possible implementation ...
using System.Windows;
using System.ComponentModel;

namespace GridHelperTest
{
  /// <summary>
  /// Interaction logic for MainWindow.xaml
  /// </summary>
  public partial class MainWindow : Window, INotifyPropertyChanged
  {
    public int RowCount { get; set; }
    public int ColumnCount { get; set; }

    public MainWindow ( )
    {
      InitializeComponent ();
      DataContext = this ;
    }

    public event PropertyChangedEventHandler PropertyChanged;

    private void TestButton_Click (object sender, RoutedEventArgs e)
    {
      MessageBox.Show ( "HELLO!", "Greetings", MessageBoxButton.OK, MessageBoxImage.Information );
    }

    private void CreateGrid_Click (object sender, RoutedEventArgs e)
    {
      if (int.TryParse ( rowSizeText.Text, out int rowResult ))
      {
        RowCount = rowResult;
        OnPropertyChanged("RowCount");
      }

      if (int.TryParse ( columnSizeText.Text, out int columnResult ))
      {
        ColumnCount = rowResult;
        OnPropertyChanged("ColumnCount");
      }
    }
    protected virtual void OnPropertyChanged(string propertyName = null)
    {
      PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
  }
}
<Window x:Class="GridHelperTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:GridHelperTest"
        mc:Ignorable="d"
        Title="MainWindow" Height="900" Width="800">

  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="*"/>
      <RowDefinition Height="*"/>
    </Grid.RowDefinitions>

    <Grid Grid.Row="0">
      <Label x:Name="colourName" Content="PURPLE" HorizontalAlignment="Left" Height="93" Margin="284,88,0,0" VerticalAlignment="Top" Width="243" FontWeight="Bold" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontSize="50" Foreground="#FFDC00FF"/>
      <Button x:Name="testButton" Content="Button" HorizontalAlignment="Left" Margin="354,234,0,0" VerticalAlignment="Top" Width="75" Click="TestButton_Click"/>
      <Label x:Name="label" Content="Row Size" HorizontalAlignment="Left" Margin="222,296,0,0" VerticalAlignment="Top" Foreground="#FFDC00FF"/>
      <Label x:Name="label_Copy" Content="Column Size" HorizontalAlignment="Left" Margin="438,296,0,0" VerticalAlignment="Top" Foreground="#FFDC00FF"/>
      <Button x:Name="createGrid" Content="Create Grid" HorizontalAlignment="Left" Margin="357,348,0,0" VerticalAlignment="Top" Width="75" Click="CreateGrid_Click"/>
      <TextBox x:Name="rowSizeText" HorizontalAlignment="Left" Height="23" Margin="296,299,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="62"/>
      <TextBox x:Name="columnSizeText" HorizontalAlignment="Left" Height="23" Margin="528,300,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="62"/>

    </Grid>
    <Grid Grid.Row="1"
          local:GridHelpers.RowCount="{Binding RowCount}"
          local:GridHelpers.ColumnCount="{Binding ColumnCount}">
      <Rectangle Grid.Row="0" Grid.Column="0" Fill="Red" Width="100" Height="100"/>
      <Rectangle Grid.Row="0" Grid.Column="1" Fill="Green" Width="100" Height="100"/>
      <Rectangle Grid.Row="1" Grid.Column="0" Fill="Blue" Width="100" Height="100"/>
      <Rectangle Grid.Row="1" Grid.Column="1" Fill="Yellow" Width="100" Height="100"/>

    </Grid>
  </Grid>
</Window>

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I'm trying make a dynamic table with a column count, but I can't get the column count out of my sql query


Tag : php , By : Yolanda N. Ceron
Date : March 29 2020, 07:55 AM
Hope this helps I'm trying to make a dynamic table that counts the columns in a certain table, returns this value, and then builds a table according to this count. My code below is without the any extra table rows, but I don't even get this first table row to appear. , I figured it out:
    $query = "DESCRIBE $tablename";
    $result = $this->mysqli->query($query);
    $colcnt = (count(mysqli_fetch_array($result)) / 2);

Count all rows from a column, and get 2 different count columns on the result even if there are not records to count


Tag : sql-server , By : user123284
Date : March 29 2020, 07:55 AM
I hope this helps . Use Left Join to get all the rows from subcategory table and then do the Count.
SELECT S.subcategoryID,
       Sum(CASE WHEN state = 1 THEN 1 ELSE 0 END) AS active,
       Sum(CASE WHEN state = 0 THEN 1 ELSE 0 END) AS inactive
FROM   subcategory s
       LEFT JOIN product p
              ON s.SubcategoryID = p.Subcategory
GROUP  BY s.subcategoryID 
SELECT S.subcategoryID,
       count(CASE WHEN state = 1 THEN 1 END) AS active,
       count(CASE WHEN state = 0 THEN 1 END) AS inactive
FROM   subcategory s
       LEFT JOIN product p
              ON s.SubcategoryID = p.Subcategory
GROUP  BY s.subcategoryID 

Dynamic column count grid for responsive web design


Tag : css , By : Robert M
Date : March 29 2020, 07:55 AM
This might help you Are you familiar with Bootstrap grid system? https://getbootstrap.com/examples/grid/
Get a link for Bootstrap CDN from here (https://www.bootstrapcdn.com/) and link to your html and try this:
<div class="container">
 <div class="col-md-3 col-sm-4 square">1</div>
 <div class="col-md-3 col-sm-4 square">2</div>
 <div class="col-md-3 col-sm-4 square">3</div>
 <div class="col-md-3 col-sm-4 square">4</div>
 <div class="col-md-3 col-sm-4 square">5</div>
 <div class="col-md-3 col-sm-4 square">6</div>
 <div class="col-md-3 col-sm-4 square">7</div>
 <div class="col-md-3 col-sm-4 square">8</div>
</div>
.square {
  border:solid;
  border-color: WHATEVERCOLOR;
  width: 200px;
  height: 200px;
}

Create count column for each artist or get count in query (count followers)


Tag : mysql , By : user158220
Date : March 29 2020, 07:55 AM
I wish this help you It will be quicker to get the data with method A but the data might be stale as it might not reflect the true count. (You will have to keep on updating the count with method A on a periodic basis)
With method B, it will be slower but you will a real time count. If it's not important to show the count on a real time basis then I would suggest that you go with method A and then update the follower count on a periodic basis

Creating a fixed row height/auto column count grid layout with css grid


Tag : css , By : protagonist
Date : March 29 2020, 07:55 AM
this one helps. CSS grid isn't a good fit for the layout you want. Luckily you can use flexbox to achieve something similar:
.grid {
    display: flex;
    flex-wrap: wrap;
}

img {
    flex: 1;
    height: 200px; /* or whatever fixed height you need */
    max-width: 100%;
    object-fit: cover;
}
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