adding controls to access forms
Tài liệu Adding Search Capabilities to Windows Forms docx
Ngày tải lên :
14/12/2013, 18:16
... "Find",
MessageBoxButtons.OK, MessageBoxIcon.Question);
findTextBox.Focus( );
}
[ Team LiB ]
Recipe 7.15 Adding Search Capabilities to Windows Forms
Problem
You need to use a search criteria ... Customers table
from the Northwind sample database. A DataView is created based on the default
view of the Customers DataTable, its sort key is set to the CustomerID column,
and it is bound to ... created
from the DataView.
Go Button.Click
Uses the Find( ) method of the DataView to locate a record with the CustomerID
specified by the user. If the CustomerID is found, the CurrencyManager...
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Tài liệu Binding Simple Data to Web Forms Controls pdf
Ngày tải lên :
26/01/2014, 10:20
... Properties window provides a tool to create data-binding
[ Team LiB ]
Recipe 7.1 Binding Simple Data to Web Forms Controls
P
roblem
You need to bind a field of data to a server-side control. ... company name for the
// user-specified customer ID.
String sqlText =
"SELECT CompanyName FROM Customers WHERE CustomerID='" +
customerIdTextBox.Text + "'"; ... String GetCompanyName(String customerId)
{
String companyName = "Not found.";
if (customerIdTextBox.Text != "")
{
// Create a command to retrieve the company name...
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Tài liệu Binding Complex Data to Web Forms Controls doc
Ngày tải lên :
26/01/2014, 10:20
... [ Team LiB ]
Recipe 7.2 Binding Complex Data to Web Forms Controls
Problem
You want to bind multiple columns in multiple records to an ASP.NET control.
Solution
Set the control's ... binding describes binding a multi-record control to multiple records in a
data source. The DataGrid, DataList, and ListBox controls are examples of controls that
support complex data binding.
Each ... sets the key field in the data source. This allows the key field
for a listing control to be stored and later accessed without displaying
it in the control.
DataValueField Gets or sets the field...
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Adding Standards to Queries
Ngày tải lên :
03/10/2013, 00:20
... ActiveCustomerID)
customerReader = commandWrapper.ExecuteReader()
These lines add the @customerID parameter to the stored procedure command. The
@customerID parameter name must match the @customerID ... Step
These lines add the @customerID parameter to the stored procedure command. The
@customerID parameter name must match the @customerID parameter as defined in
the original stored procedure.
3. Just ... parameters
to the command and sends it to the database for processing.
4. Run the program. On the Customer Management form, select a customer from the list
of customers and then click Rename Customer....
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Module 4: Using ADO to Access XML Data
Ngày tải lên :
22/10/2013, 16:15
... sheet to be
applied.
Absolute File Path. The complete path to the XSL style sheet to be applied.
Relative URL. The relative Uniform Resource Locator (URL) to the XSL
style sheet to be ... encapsulate ADO data access code in components
that are called by ASP scripts.
This section discusses how to use ADO and XML to build Web sites.
Topic Objective
To introduce the topics in
this ... you assign the template to the Command object?
Read the file into a stream and assign it to the CommandStream
property of the Command object.
Topic Objective
To reinforce module
objectives...
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Module 3: Using ADO.NET to Access Data
Ngày tải lên :
27/10/2013, 07:15
... Categories
Topic Objective
To explain how to use
stored procedures to
retrieve data in a database.
Lead-in
Like ADO, ADO.NET allows
developers to use stored
procedures to modify data. ... specific data values to a stored
procedure.
Output Used by a stored procedure to send specific values back to the
calling application.
InputOutput Used by a stored procedure to both retrieve ...
Topic Objective
To describe how to connect
to a data source by using
ADO.NET.
Lead-in
Connecting to a data source
is the first step in data
access.
Note
Module 3: Using ADO.NET to...
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Module 5: Using HTTP to Access XML Data
Ngày tải lên :
04/11/2013, 13:15
...
AUTO&root=catalog
Topic Objective
To demonstrate how to
create a virtual directory for
SQL Server.
Lead-in
In this demonstration, you
will see how to create a
virtual directory ...
Topic Objective
To introduce the topics in
this section.
Lead-in
XML templates provide a
way to publish data without
providing direct access to
the database.
Module 5: Using HTTP to ... how to
create a secure IIS virtual directory for your SQL Server 2000 data sources.
You will also learn how to use a Uniform Resource Locator (URL) query to test
a virtual directory.
Topic...
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Using a DataGrid Control to Access a Database
Ngày tải lên :
07/11/2013, 10:15
... sqlConnection1 object to display the properties for this object in the
Properties window.
5. To enable sqlConnection1 to access the database, you need to set the password for
the connection. To do this, ...
Using a DataGrid Control to Access a Database
In this section, you'll learn how to use a DataGrid control to access the rows in a database
table. Follow these steps to create a DataGrid using ... Click the Close button to close the Data Adapter Preview dialog box.
Next, you need to create a DataSet object. You use a DataSet object to a store local copy
of the information stored in the database....
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Tài liệu Module 4: Adding Documents to the Workspace ppt
Ngày tải lên :
10/12/2013, 16:15
... retained.
Topic Objective
To describe how to
configure version pruning.
Lead-in
To configure version
pruning, use the
Workspace Settings tool in
the Management folder to
access the General ...
Important
Module 4: Adding Documents to the Workspace 3
Using Document Versioning to Record Document History
Author
1.0
1.0
Readers
Check Out
Read-only access to most
recently published ... Microsoft Excel 2000, or Microsoft
PowerPoint
đ
2000 to add documents to the workspace.
Adding a New Document to the Workspace
To add a new document to the workspace, create the document by using...
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Tài liệu Adding Restrictions to DataTable and DataColumn Objects phần 1 ppt
Ngày tải lên :
24/12/2013, 01:17
... DataTable.
Adding Constraints to DataTable Objects
In this section, you'll see how to add constraints to DataTable objects. Specifically, you'll
see how to add primary key constraints to ... reason for adding a primary key constraint to your DataTable because you
don't want duplicate rows.
Adding a Primary Key to the Products DataTable
Let's take a look at adding a primary ... By adding these restrictions up front, you prevent bad data from being added to your
DataSet to begin with. This helps reduce the errors when attempting to push changes in
your DataSet to the...
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Tài liệu Adding restrictions to datatable and datacolumn objects phần 2 pptx
Ngày tải lên :
24/12/2013, 01:17
... you'll see how to add restrictions to the DataColumn objects stored in a
DataTable. Specifically, you'll see how to set the AllowDBNull, AutoIncrement,
AutoIncrementSeed, AutoIncrementStep, ... key value.
You need to keep this issue in mind when adding rows to a DataTable, which you'll see
how to do shortly.
That wraps up adding the primary key constraints to the DataTable objects. ... myDataSet.Tables["Products"].Columns["ProductID"]
);
That wraps up adding constraints to the DataTable objects. Next, you'll see how to add
restrictions to DataColumn objects.
Adding Restrictions to DataColumn Objects
In this...
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Tài liệu Adding Restrictions to DataTable and DataColumn Objects phần 3 ppt
Ngày tải lên :
24/12/2013, 01:17
... is stored in the
AllowDBNull property.
ã
Whether the DataColumn value must be unique-which is stored in the Unique
property.
ã
Any auto-increment information-which is stored in the AutoIncrement, ... Console.WriteLine("myDataColumn.AutoIncrement = " +
myDataColumn.AutoIncrement);
Console.WriteLine("myDataColumn.AutoIncrementSeed = " +
myDataColumn.AutoIncrementSeed);
Console.WriteLine("myDataColumn.AutoIncrementStep ... the AutoIncrement,
AutoIncrementSeed, and AutoIncrementStep properties.
The FillSchema() method will also determine whether the DataColumn is part of a
primary key and store that information...
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Tài liệu Connecting to Access and Oracle Databases docx
Ngày tải lên :
24/12/2013, 01:17
... OleDbConnectionAccess.cs illustrates how to use an
OleDbConnection object to connect to an Access database
*/
using System;
using System.Data;
using System.Data.OleDb;
class OleDbConnectionAccess ... previous line of
code) to the constructor:
OleDbConnection myOleDbConnection =
new 01eDbConnection(connectionString);
Listing 1.2 illustrates how to connect to the Northwind Access database using ...
id=username;password=password
Connecting to Access and Oracle Databases
In this section you'll see examples of connecting to both an Access and an Oracle
database. To interact with either of these...
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Tài liệu Adding Parameters to functions docx
Ngày tải lên :
24/12/2013, 07:17
... weightOnMoon variable's being set to a different
value as well. Take a look at these function calls to the convertToMoonWeight()
function:
convertToMoonWeight(190);
convertToMoonWeight(32); ...
actions the function performs are enclosed in an if statement, which is used to
allow channels to be changed only if tvPower is true. The function then sets a
variable used to store the current channel ... the TV channel. To increment or decrement a
channel, you need to have the current channel stored. The script declares a new
variable called currentChannel, which will be used to store the numeric...
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Tài liệu Adding Tables to a Database pdf
Ngày tải lên :
21/01/2014, 11:20
... [ Team LiB ]
Recipe 10.8 Adding Tables to a Database
Problem
You need to add a table to an existing database.
Solution
Use the CREATE TABLE statement. ... ExecuteNonQuery( ) method o
f
the Command object to add a table to an existing SQL Server database.
The C# code is shown in Example 10-8
.
Example 10-8. File: AddTableToDatabaseForm.cs
// Namespaces, variables,...
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