Tài liệu Refreshing a DataSet Automatically Using Extended Properties pptx

... Team LiB ] Recipe 9.14 Refreshing a DataSet Automatically Using Extended Properties Problem You need to automatically refresh a DataSet periodically. Solution Use extended properties and ... second, and a period of one second. Update Button.Click Uses a DataAdapter to update changes made to the first DataTable back to the data source. CheckRefreshDataSe...

Ngày tải lên: 14/12/2013, 18:16

... Creating a DataSet Object Using Visual Studio .NET In this section, you'll learn how to create a DataSet using Visual Studio .NET. N ote You'll find a completed VS .NET example ... form, and add code to your form to fill it using the Fill() method of a DataAdapter object. • Click the Generate Dataset link at the bottom of the Properties window of your D...

Ngày tải lên: 21/01/2014, 07:20

... Populate a DataSet with both schema and data. Synchronize it with a new XmlDataDocument, initializing it with the DataSet in the constructor. Method 2 Populate a DataSet with a schema but no data. ... DataTable orderDetailTable = new DataTable(ORDERDETAILS_TABLE); da.FillSchema(orderDetailTable, SchemaType.Source); if (includeData) da.Fill(orderDetailTable); ds.Table...

Ngày tải lên: 21/01/2014, 11:20

... System.Data.SqlClient.SqlDataAdapter mySqlDataAdapter = new System.Data.SqlClient.SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; MyDataSet myDataSet = new MyDataSet(); sqlConnection1.Open(); ... mySqlDataAdapter.Fill(myDataSet, "Customers"); sqlConnection1.Close(); MyDataSet.CustomersDataTable myDataTable = myDataSet.Customers; foreach (MyDataSet.Cust...

Ngày tải lên: 21/01/2014, 07:20

... Create the DataSet. DataSet ds = new DataSet( ); // Create the SQL XML DataAdapter. SqlXmlAdapter da = new SqlXmlAdapter(cmd); // Fill the DataSet. try { da.Fill(ds); } catch(Exception ... <sql:param> tag with the name attribute used to specify the parameter name and the parameter default value optionally specified between the <sql:param> and <sql:p...

Ngày tải lên: 21/01/2014, 11:20

... . private void XslTransformForm_Load(object sender, System.EventArgs e) { // Fill the Categories within a DataSet. SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Categories", ... System.Configuration; using System.IO; using System.Xml; using System.Xml.Xsl; using System.Data; using System.Data.SqlClient; // Table name constants private const String CA...

Ngày tải lên: 21/01/2014, 11:20

... of the DataSet. 7. Repeat steps 3-6 for each table in the DataSet. 8. Create a data relationship between two related tables in the DataSet by using the Add( ) method of the DataRelationCollection ... BuildDataSetProgramaticallyForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Data; using System.Data.SqlClient; // . ....

Ngày tải lên: 14/12/2013, 18:16

... private void encryptButton_Click(object sender, System.EventArgs e) { DataSet ds = new DataSet( ); SqlDataAdapter da; // Fill the Order table and add it to the DataSet. da = new ... System.Runtime.Serialization; using System.Runtime.Serialization.Formatters.Binary; using System.Security.Cryptography; using System.Data; using System.Data.SqlClient; // Table name...

Ngày tải lên: 14/12/2013, 18:16

... Close the reader and connection. dr.Close( ); conn.Close( ); // Load the Orders data into a table in a DataSet. DataSet ds = new DataSet( ); SqlDataAdapter da = new SqlDataAdapter(sqlText, ... xmlDoc.LoadXml(adoXml); // Create a namespace manager for the XML document. XmlNamespaceManager nm = new XmlNamespaceManager(xmlDoc.NameTable); // Add ADO prefixes. nm.Ad...

Ngày tải lên: 14/12/2013, 18:16

... If the username and password check out, then the GetUserInfo method is called, passing the username once again. The first table from the returned dataset is assigned to the DataSource property ... xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> - <xs:element name="NewDataSet" msdata:IsDataSet="true"> - <xs:complexType> - <xs:choice...

Ngày tải lên: 24/12/2013, 06:17