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POKeeping a datagrid in sync with a mysql database
 

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  1. POKeeping a datagrid in sync with a mysql database
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    <p>I'm experimenting with databinding in WPF</p> <p>I have this datagrid that is bound to a mysql view, it's gonna be read only, but I'd like it to automatically refresh when changes are made to the database.<br> Couldn't find anything useful on google and I have no idea where to start. </p> <p>This is the dataprovider class.</p> <pre><code>class ConDataProvider { private MySqlDataAdapter adapter; private Data data; private DataTable table; public ConDataProvider(string query) { data = new Data(); table = new DataTable("con_FullGrid"); adapter = data.getAdapter(query); adapter.Fill(table); } public DataView GetDView() { dv = new DataView(); dv.Table = table; return dv; } } </code></pre> <p>And the XAML for the window</p> <pre><code>&lt;Window x:Class="HelioWPF_Alpha01.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:local="clr-namespace:HelioWPF_Alpha01" xmlns:sys="clr-namespace:System;assembly=mscorlib" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="676" Width="924" MinHeight="300" MinWidth="463" Background="{x:Null}"&gt; &lt;Window.Resources&gt; &lt;ObjectDataProvider x:Key="ConDataProvider" ObjectType="{x:Type local:ConDataProvider}"&gt; &lt;ObjectDataProvider.ConstructorParameters&gt; &lt;sys:String&gt;SELECT * FROM con_FullGrid&lt;/sys:String&gt; &lt;/ObjectDataProvider.ConstructorParameters&gt; &lt;/ObjectDataProvider&gt; &lt;ObjectDataProvider x:Key="btable" ObjectInstance="{StaticResource ConDataProvider}" MethodName="GetDView"/&gt; &lt;/Window.Resources&gt; &lt;Grid Name="mainGrid" DataContext="{Binding Source={StaticResource btable}" KeyDown="mainGrid_KeyDown" FlowDirection="LeftToRight" &gt; &lt;DataGrid AutoGenerateColumns="True" ItemsSource="{Binding}" Name="dataGrid1" FrozenColumnCount="20" RowHeight="25" Grid.ColumnSpan="4" ColumnWidth="*" MouseDoubleClick="dataGrid1_MouseDoubleClick" SelectionMode="Single" Grid.Row="2" Grid.Column="1" TabIndex="1" GotKeyboardFocus="dataGrid1_GotKeyboardFocus"&gt; &lt;DataGrid.AlternatingRowBackground&gt; &lt;LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5"&gt; &lt;GradientStop Color="Black" Offset="0" /&gt; &lt;GradientStop Color="#16436DF8" Offset="0" /&gt; &lt;/LinearGradientBrush&gt; &lt;/DataGrid.AlternatingRowBackground&gt;&lt;/DataGrid&gt; &lt;/Grid&gt; </code></pre> <p></p> <p>What I have been doing is kind of faking it by reinitializing the ConDataProvider class in behind code and rebinding the datagrid on various events. But it's an ugly hack.<br> I wouldn't mind redesigning the whole thing if I have to. </p> <p>The Data class just contains the connection string and some methods to interact with the database. You can see it here: <a href="http://pastebin.com/m9HLfwEQ" rel="nofollow">http://pastebin.com/m9HLfwEQ</a></p> <p>Thanks in advance.<br> Hope to get some good tips.</p>
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    1. USSteinthor.palsson
    1. USSteinthor.palsson
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    1. CONot sure about MySql but Microsoft SQL has Service Broker which has Notification Services..
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      1. USShekhar_Pro
 

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