animating a 3d object
Using a DataReader Object in Visual Studio .NET
... SqlDataReader object to a string Also notice you include the namespace when referencing the SqlDataReader class: you use System.Data.SqlClient SqlDataReader when creating the SqlDataReader object ... System.Data.SqlClient.SqlDataReader mySqlDataReader = sqlCommand1.ExecuteReader(); while (mySqlDataReader.Read()) { listView1.Items.Add(mySqlDataReader["CustomerID"].ToString()); listView1.Items.Add(mySqlDataReader["CompanyName"].ToString()); ... opens the database connection, creates a SqlDataReader object, and uses it to read the rows from the result set returned by the SqlCommand object Each column of the result set is then added to...
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Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... ADO.NET automatically stores database connections in a pool Connection pooling offers a great performance improvement because you don't have to wait for a brand new connection to the database to ... Server database */ using System; using System.Data; using System.Data.SqlClient; class MySqlConnection { public static void Main() { // formulate a string containing the details of the // database ... to be established when there's a suitable connection already available When you close a connection, that connection isn't actually closed; instead, your connection is marked as unused and stored...
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Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc
... void and accept two parameters The first parameter is an object (of the class System .Object) , and it represents the object that raises the event Note The System .Object class acts as the base class ... SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa"); // monitor the StateChange event using the StateChangeHandler() method mySqlConnection.StateChange += new StateChangeEventHandler(StateChangeHandler); ... example defines a method named StateChangeHandler to handle the StateChange event You'll notice that the second parameter to this method is a StateChangeEventArgs object You get the original...
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Tìm hiểu kỹ thuật tạo bóng cứng trong đồ họa 3d
... (Radiosity) Radiosity là một kỹ thuật tạo bóng mềm bằng cách tính toán tất cả các phản xạ, khuếch tán a nh sáng giư a các mặt khác cu a tất cả các vật thể khung cảnh Nó hầu ... nghiệp trang35 //Calculate the plane equation for each face planeEquations=new PLANE[numTriangles]; if(!planeEquations) { errorLog.OutputError("Unable to allocate memory for %d planes", numTriangles); ... Một cách bản nó là một phép kiểm tra tính hiển thị cu a một điểm Các thuật toán tạo bóng cứng phổ biến là: 2.1.1 Tạo bóng giả (Fakes Shadow) Các thuật toán tạo bóng...
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Tài liệu Writing and Reading XML Using a DataSet Object ppt
... Customers " + "ORDER BY CustomerID"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); Console.WriteLine("Retrieving ... ANATR Ana Trujillo3 Emparedados y helados Ana Trujillo Avda de la Constitución 2222 ... Futterkiste ContactName = Maria Anders Address = Obere Str 57 CustomerID = ANATR CompanyName = Ana Trujillo3 Emparedados y helados ContactName = Ana Trujillo Address = Avda de la Constitución...
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Tài liệu Creating a Command Object Using Visual Studio .NET docx
... here Add the CustomerID, CompanyName, and ContactName columns using Query Builder, as shown in Figure 8.3 Figure 8.3: Adding the CustomerID, CompanyName, and ContactName columns to the query using ... continue The CommandText property of your SqlCommand object is then set to the SELECT statement you created in Query Builder Note Save your MyDataReader project by selecting File ➣ Save All You'll ... CommandText property for your SqlCommand object In the Add Table dialog, select the Customers table, as shown in Figure 8.2 Click the Add button to add the Customers table to your query Click the Close...
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Tài liệu Creating a Connection Object Using Visual Studio .NET pdf
... security reasons, not enable the Allow Saving Password check box If you did, your password would be stored in the actual code, and anyone could get your password from the code Leave Allow Saving Password ... example, you can set your method to private void sqlConnection1_StateChange( object sender, System.Data.StateChangeEventArgs e) { Console.WriteLine( "State has changed from "+ e.OriginalState + "to ... the SQL Server Northwind database is set to data source=localhost;initial catalog=Northwind;persist security info=False; user id=sa;pwd=sa;workstation id=JMPRICE-DT1;packet size=4096 Note The...
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Tài liệu Creating a DataAdapter Object Using Visual Studio .NET doc
... SqlDataAdapter object in the tray Warning You need to set the Connection property of the SelectCommand in your sqlDataAdapter1 object to your Connection object before the DataAdapter can access ... This link allows you to re-enter the Wizard to configure your DataAdapter Generate Dataset This link allows you to generate a DataSet object using the information set for your DataAdapter You'll ... UPDATE, and DELETE statements along with the table mappings Figure 10.12 shows the final dialog box for the Data Adapter Configuration Wizard Figure 10.12: Final dialog box for the Data Adapter...
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Tài liệu Creating a DataSet Object Using Visual Studio .NET docx
... sqlDataAdapter1.Fill(dataSet11, "Products"); sqlConnection1.Close(); System.Data.DataTable myDataTable = dataSet11.Tables["Products"]; foreach (System.Data.DataRow myDataRow in myDataTable.Rows) ... DataSet object in the tray Your next step is to set the Form1_Load() method of your form as follows: private void Form1_Load (object sender, System.EventArgs e) { sqlConnection1.Open(); sqlDataAdapter1.Fill(dataSet11, ... myDataTable.Rows) { listView1.Items.Add(myDataRow["ProductID"].ToString()); listView1.Items.Add(myDataRow["ProductName"].ToString()); listView1.Items.Add(myDataRow["UnitPrice"].ToString()); } }...
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Tài liệu Creating a ForeignKeyConstraint Object doc
... that the ForeignKeyConstraint is added to ordersDT using the Add() method Note To successfully add a ForeignKeyConstraint to a DataTable, each DataColumn value in the child DataTable must have ... must have a matching DataColumn value in the parent DataTable The next example retrieves the constraint just added to ordersDT and displays its properties: myFKC = (ForeignKeyConstraint) ordersDT.Constraints["ForeignKeyConstraintCustomersOrders"]; ... (DataColumn relatedDataColumn in myFKC.RelatedColumns) { Console.WriteLine(""+ relatedDataColumn); } Console.WriteLine("myFKC.RelatedTable = " + myFKC.RelatedTable); Console.WriteLine("myFKC.Table...
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Tài liệu Creating a SqlCommand Object pptx
... learn how to create a SqlCommand object using the CreateCommand() method of a SqlConnection object Creating a SqlCommand Object Using the CreateCommand() Method Rather than creating a SqlCommand ... CompanyName, ContactName, Address " + "FROM Customers " + "ORDER BY CustomerID"; You can also pass the command and the Connection object to the constructor in one step when creating a Command object ... Indicates the name of a table, for which all rows and columns are to be retrieved Note: SqlCommand objects don't support TableDirect You have to use an object of one of the other Command classes...
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Tài liệu Reading Rows from a SqlDataReader Object docx
... that a DataReader object ties up the Connection object, and no other commands can be executed while there is an open DataReader for that Connection The following example closes productsSqlDataReader ... productIDColPos = productsSqlDataReader.GetOrdinal("ProductID"); int productNameColPos = productsSqlDataReader.GetOrdinal("ProductName"); int unitPriceColPos = productsSqlDataReader.GetOrdinal("UnitPrice"); ... discontinuedColPos = productsSqlDataReader.GetOrdinal("Discontinued"); You can then use these int values to get the column values from productsSqlDataReader: while (productsSqlDataReader.Read()) { Console.WriteLine(productsSqlDataReader[productIDColPos]);...
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Tài liệu Creating a Sound Object pdf
... contains the background graphics The Ball layer contains the basketball graphic, which is a movie clip instance appropriately named basketball_mc We'll be looking at this instance's timeline in a ... contains three layers: Shadow, Graphic, and Sound The Shadow and Graphic layers contain a couple of tweens to emulate the look and movement of a bouncing basketball The Sound layer simply contains ... that bouncing ball Open basketball1.fla in the Lesson17/Assets folder This file contains six layers—Background, Ball, Ball Score, Score Fields, Watermark, and Actions: o o The Background layer...
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Tài liệu Creating a UniqueConstraint Object ppt
... successfully add a UniqueConstraint to the DataColumn of a DataTable, the DataColumn value in each DataRow object in the DataTable must be unique The final example retrieves the constraint just added ... DataSet myDataSet = new DataSet(); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet); mySqlConnection.Close(); myDataSet.Tables["Table"].TableName = "Customers"; myDataSet.Tables["Table1"].TableName ... myDataSet.Tables["Table1"].TableName = "Orders"; DataTable customersDT = myDataSet.Tables["Customers"]; DataTable ordersDT = myDataSet.Tables["Orders"]; The following example creates a UniqueConstraint object on...
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Tài liệu Creating and Using a DataRelation Object doc
... true) parentDataTableName and childDataTableName are the names of the parent and child DataTable objects parentDataColumnNames and childDataColumnNames contain the names of the DataColumn objects ... createConstraints) DataRelation(string dataRelationName, DataColumn[] parentDataColumns, DataColumn[] childDataColumns, bool createConstraints) DataRelation(string dataRelationName, string parentDataTableName, ... DataRelation(string dataRelationName, DataColumn[] parentDataColumns, DataColumn[] childDataColumns) DataRelation(string dataRelationName, DataColumn parentDataColumn, DataColumn childDataColumn, bool createConstraints)...
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Tài liệu Creating and Using a DataView Object doc
... mySqlCommand.CommandText = "SELECT CustomerID, CompanyName, Country " + "FROM Customers"; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet ... customersDV.RowStateFilter = rowStateFilter; A DataView stores rows as DataRowView objects, and the rows are read from the DataRow objects stored in the underlying DataTable The following example uses a foreach ... default is DataViewRowState.CurrentRows, which includes rows in your DataView for which the DataViewRowState is Unchanged, Added, and ModifiedCurrent The following example creates a DataView object...
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Tài liệu Creating and Using a DataViewManager Object pdf
... SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet, ... mySqlConnection.Close(); DataTable customersDT = myDataSet.Tables["Customers"]; // create a DataViewManager object named myDVM DataViewManager myDVM = new DataViewManager(myDataSet); // set the Sort and RowFilter ... UsingDataViewManager.cs illustrates the use of a DataViewManager object */ using System; using System.Data; using System.Data.SqlClient; class UsingDataViewManager { public static void Main()...
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A nanoscale object moving autonomously over a self assembled microscopic structure has important nano robotics applications
... • Mandal, Deendayal; Bolander, Mark E.; Mukhopadhyay, Debrabrata; Sarkar, Gobinda; • Mukherjee, Priyabrata (2006, January) The use of Microorganisms for the formation of metal nanoparticles and ... Bottom-Up Approach •Bottom-up approach to manufacturing is analogous to the way biological systems are made Figure 1.25: An example of a molecular self assembly through hydrogen bonds 21 Summary Nanotechnology ... involves imaging, measuring, modeling, and manipulating matter at this length scale.” National Nanotechnology Initiative, 2007 Scale of Things—Nanometers Figure 1.5: National Nanotechnology Initiative...
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Tìm hiểu một số kỹ thuật trong đồ họa 3D và ứng dụng
... lệnh đồ h a 3D Quay quanh trục: virtual void Ogre::Node::rotate(const Vector3& axis, const Radian& angle, TransformSpace relativeTo=TS_LOCAL) axis : trục cần quay quanh angle: góc cần quay theo ... relativeTo: không gian phép quay, có loại không gian TS_LOCAL, TS_PARENT, TS_WORLD TS_LOCAL: không gian cục bộ, không gian nút Quay quay quanh trục nút TS_PARENT: không gian gốc, không gian nút ... mgr->createEntity(availableMeshes[i], availableMeshes[i] + ".mesh"); mDoorNode->attachObject(mEntity); } Nguyễn Phi Hùng - Lớp CT901 48 – // Open button CEGUI::WindowManager *winm = CEGUI::WindowManager::getSingletonPtr();...
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Creating a glass object with max and vray
... cheked and on V-ray shadows parameters check Transparent shadows and area shadow Use a plane for the scene and assign a white color to this It looks fine, but not really :) The glass need something ... Image Sampler(Antialising), turn of the Adaptive subdivision For the glass materials use this settings: and for the liquid this For the lighting I have used an Omni light, V-ray shadows cheked and ... reflect To this use a HDRI map You can find some HDRI images at this address http://athens.ict.usc.edu/Probes/ and assign this to V-ray Environment and the result And with caustics the scene will...
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