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How can you load an XML file directly into a DataSet?

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How can you load an XML file directly into a DataSet?

To fill a DataSet with data from XML, use the ReadXml method of the DataSet object. The ReadXml method reads from a file, a stream, or an XmlReader, and takes as arguments the source of the XML plus an optional XmlReadMode argument.

What is DataSet schema?

Fully defining and configuring a dataset schema means: Adding a description to a dataset field (2) Choosing a type for each field (3) Setting up relevant fields as facets to define filters for the dataset (4) Configuring options for each field, depending on their type and whether they are set up as facets or not (5)

How to load XML file to DataSet in c#?

Load Xml Document in Dataset

  1. class Program.
  2. public static void Main(string[] args)
  3. string xmlDoc = @”
  4. StringReader sr = new StringReader(xmlDoc);
  5. DataSet ds = new DataSet();
  6. foreach (DataColumn dc in ds.Tables[0].Columns)
  7. Console.Write(“{0,15}”, dc.ColumnName);
  8. Console.Write(“\n”);

Which type of DataSet has schema information?

The XML document can contain only schema, or can contain schema inline with XML elements containing data. For details about writing inline schema as XML Schema, see Deriving DataSet Relational Structure from XML Schema (XSD).

How do you convert a DataSet into a data table?

Convert DataSet to DataTable

  1. DataSet ds;
  2. DataTable dt= ds. Tables[0];

What is ReadXml C#?

The ReadXml method provides a way to read either data only, or both data and schema into a DataSet from an XML document, whereas the ReadXmlSchema method reads only the schema. To read both data and schema, use one of the ReadXML overloads that includes the mode parameter, and set its value to ReadSchema .

What is schema in data analytics?

A schema can be defined as the logic behind the organization of data. The data used to develop a table (or a set of tables) is the schema. It will define how a given table relates to another table, and what a table should be comprised of. A schema is a lot like DNA.

What is dataset in data analytics?

A data set (or dataset) is a collection of data. The data set lists values for each of the variables, such as height and weight of an object, for each member of the data set. Data sets can also consist of a collection of documents or files.

What is ReadXML C#?

What is XSD DataSet?

You can write the schema of a DataSet as XML Schema definition language (XSD) schema, so that you can transport it, with or without related data, in an XML document. XML Schema can be written to a file, a stream, an XmlWriter, or a string; it is useful for generating a strongly typed DataSet.

How do you convert a DataSet to a list?

Convert DataTable to List using a Generic Method

  1. private static List ConvertDataTable(DataTable dt)
  2. {
  3. List data = new List();
  4. foreach (DataRow row in dt.Rows)
  5. {
  6. T item = GetItem(row);
  7. data.Add(item);
  8. }

How do I define the schema of a dataset?

The schema of a DataSet (its tables, columns, relations, and constraints) can be defined programmatically, created by the Fill or FillSchema methods of a DataAdapter, or loaded from an XML document. To load DataSet schema information from an XML document, you can use either the ReadXmlSchema or the InferXmlSchema method of the DataSet.

How do I load dataset schema information from an XML document?

To load DataSet schema information from an XML document, you can use either the ReadXmlSchema or the InferXmlSchema method of the DataSet. ReadXmlSchema allows you to load or infer DataSet schema information from the document containing XML Schema definition language (XSD) schema, or an XML document with inline XML Schema.

What is the difference between readschema and inferschema?

– If the XML is a DiffGram, DiffGram is used. – If the DataSet contains a schema or the XML contains an inline schema, ReadSchema is used. – If the DataSet does not contain a schema and the XML does not contain an inline schema, InferSchema is used.

What is the difference between readxmlschema and inferxmlschema?

ReadXmlSchema allows you to load or infer DataSet schema information from the document containing XML Schema definition language (XSD) schema, or an XML document with inline XML Schema. InferXmlSchema allows you to infer the schema from the XML document while ignoring certain XML namespaces that you specify.

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