MongoDBDataSource(MongoDBConnectionParametersBase) Constructor
Initializes a new instance of the MongoDBDataSource class with specified settings.
Namespace: DevExpress.DataAccess.MongoDB
Assembly: DevExpress.DataAccess.v24.2.dll
Declaration
Parameters
Name | Type | Description |
---|---|---|
connectionParameters | MongoDBConnectionParametersBase | MongoDB connection parameters. |
Example
The example below demonstrates how to use the MongoDBDataSource class to bind an application/component to a MongoDB instance. The example uses the MongoDBCustomConnectionParameters class to specify a connection string to the MongoDB instance and the MongoDBQuery class to specify data queries to the Categories and Products collections of the Northwind database.
using DevExpress.DataAccess.ConnectionParameters;
using DevExpress.DataAccess.MongoDB;
// ...
// Create a MongoDBCustomConnectionParameters object and assign
// a connection string to a MongoDB instance to the object's
// ConnectionString property.
var connectionString = new MongoDBCustomConnectionParameters() {
ConnectionString = "mongodb://localhost:27017"
};
// Specify queries to database collections.
var queryCategories = new MongoDBQuery() {
DatabaseName = "Northwind",
CollectionName = "Categories",
};
var queryProducts = new MongoDBQuery() {
DatabaseName = "Northwind",
CollectionName = "Products",
};
// Create a MongoDBDataSource object. Assign the created connection
// string to the object's ConnectionParameters property. Add the
// queries to the object's Queries collection.
var mongoDBDataSource = new MongoDBDataSource() {
ConnectionParameters = connectionString,
Queries = { queryCategories, queryProducts }
};
// Call the Fill method of the MongoDBDataSource object to execute the
// queries and load data from the MongoDB instance.
mongoDBDataSource.Fill();
// Use the created object as a data source in your application or component.
//...
Imports DevExpress.DataAccess.ConnectionParameters
Imports DevExpress.DataAccess.MongoDB
' ...
' Create a MongoDBCustomConnectionParameters object and assign
' a connection string to a MongoDB instance to the object's
' ConnectionString property.
Dim connectionString = New MongoDBCustomConnectionParameters() With {
.ConnectionString = "mongodb://localhost:27017"
}
' Specify queries to database collections.
Dim queryCategories = New MongoDBQuery() With {
.DatabaseName = "Northwind",
.CollectionName = "Categories"
}
Dim queryProducts = New MongoDBQuery() With {
.DatabaseName = "Northwind",
.CollectionName = "Products"
}
' Create a MongoDBDataSource object. Assign the created connection
' string to the object's ConnectionParameters property. Add the
' queries to the object's Queries collection.
Dim mongoDBDataSource = New MongoDBDataSource() With {
.ConnectionParameters = connectionString
}
mongoDBDataSource.Queries.Add(queryCategories)
mongoDBDataSource.Queries.Add(queryProducts)
' Call the Fill method of the MongoDBDataSource object to execute the
' queries and load data from the MongoDB instance.
mongoDBDataSource.Fill()
' Use the created object as a data source in your application or component.
'...
See Also