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URL: https://www.cdata.com/kb/tech/redis-ado-devexpress.rst

⇱ DataBind Redis Data to the DevExpress Data Grid


DataBind Redis Data to the DevExpress Data Grid

👁 Jerod Johnson
Jerod Johnson
Director, Technology Evangelism
Use the CData ADO.NET Provider for Redis with the DevExpress Windows Forms and Web controls to provide Redis data to a chart.

The ADO.NET Provider for Redis by CData incorporates conventional ADO.NET data access components compatible with third-party controls. You can adhere to the standard ADO.NET data binding procedures to establish two-way access to real-time data through UI controls. This article will demonstrate the utilization of CData components for data binding with DevExpress UI Controls (Windows Forms and Web controls), specifically binding to a chart that visualizes live data.

Set the following connection properties to connect to a Redis instance:

  • : Set this to the name or address of the server your Redis instance is running on. You can specify the port in .
  • : Set this to the password used to authenticate with a password-protected Redis instance , using the Redis AUTH command.

Set to negotiate SSL/TLS encryption when you connect.

Windows Forms Controls

The code below shows how to populate a DevExpress chart with Redis data. The RedisDataAdapter binds to the Series property of the chart control. The Diagram property of the control defines the x- and y-axes as the column names.

using (RedisConnection connection = new RedisConnection(
"Server=127.0.0.1;Port=6379;Password=myPassword;")) {
 RedisDataAdapter dataAdapter = new RedisDataAdapter(
 "SELECT City, CompanyName FROM Customers", connection);
 
 DataTable table = new DataTable();
 dataAdapter.Fill(table);
 DevExpress.XtraCharts.Series series = new DevExpress.XtraCharts.Series();
 chartControl1.Series.Add(series);
 series.DataSource = table;
 series.ValueDataMembers.AddRange(new string[] { "CompanyName" });
 series.ArgumentScaleType = DevExpress.XtraCharts.ScaleType.Qualitative;
 series.ArgumentDataMember = "City";
 series.ValueScaleType = DevExpress.XtraCharts.ScaleType.Numerical;
 chartControl1.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;
 ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true; 
}
👁 The complete code example and the resulting chart.

Web Controls

The code below shows how to populate a DevExpress Web control with Redis data. The RedisDataAdapter binds to the Series property of the chart; the Diagram property defines the x- and y-axes as the column names.

using DevExpress.XtraCharts;

using (RedisConnection connection = new RedisConnection(
"Server=127.0.0.1;Port=6379;Password=myPassword;"))
{
 RedisDataAdapter RedisDataAdapter1 = new RedisDataAdapter("SELECT City, CompanyName FROM Customers", connection);
 DataTable table = new DataTable();
 RedisDataAdapter1.Fill(table);
 DevExpress.XtraCharts.Series series = new Series("Series1", ViewType.Bar);
 WebChartControl1.Series.Add(series);
 series.DataSource = table;
 series.ValueDataMembers.AddRange(new string[] { "CompanyName" });
 series.ArgumentScaleType = ScaleType.Qualitative;
 series.ArgumentDataMember = "City";
 series.ValueScaleType = ScaleType.Numerical;
 ((DevExpress.XtraCharts.SideBySideBarSeriesView)series.View).ColorEach = true;
}
👁 An ASP.NET application created with the ADO.NET Provider and the DevExpress Web Forms control. (Salesforce is shown.)

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