Интерфейс IListProvider
Примечание. Этот API устарел.
Определяет события, которые можно реализовать в веб-части таким образом, он может предоставить весь список (набора строк) данных другой веб-части, который реализует интерфейс IListConsumer .
Пространство имен: Microsoft.SharePoint.WebPartPages.Communication
Сборка: Microsoft.SharePoint (в Microsoft.SharePoint.dll)
Синтаксис
'Декларация
<ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")> _
Public Interface IListProvider
'Применение
Dim instance As IListProvider
[ObsoleteAttribute("Use System.Web.UI.WebControls.WebParts.IWebPartTable instead")]
public interface IListProvider
Замечания
Должен быть реализован интерфейс IListProvider в веб-части, которые необходимы для передачи набора данных, который можно охарактеризовать как список, например в таблице данных. Его можно использовать в сценариях, где часть потребителя разработана осознавая отправляемых поставщиком данных. Кроме того веб-частей, который реализует интерфейс IListProvider имеет возможность передавать аргументы инициализации части потребителя. Подключения к интерфейсу IListConsumerIListProvider интерфейс настолько прямое подключение, отображается диалоговое окно без преобразователя.
Примеры
В следующем примере кода показан простой серверных IListProvider веб-части. Он может быть подключен к один или несколько веб-части, реализующие интерфейс IListConsumer на сервере. В этом примере отображается список продуктов. При нажатии кнопки Fire ListReady , эта веб-часть передается все веб-части, подключенные к нему весь список продуктов.
Восемь шагов относятся к тому, что данная соединяемой веб-части. Эти шаги будут пронумерованы и комментария в следующем примере кода.
' Common .NET required namespaces
Imports System
Imports System.ComponentModel
Imports System.Web.UI
' WebPart required namespaces
Imports Microsoft.SharePoint.WebPartPages
Imports System.Xml.Serialization
Imports System.Web.UI.WebControls
' DataGrid and user interface namespaces
Imports System.Data
Imports System.Drawing
' Code Access Security namespaces
Imports System.Security
Imports Microsoft.SharePoint.Utilities
'Step #1: Reference the Communication namespace.
Imports Microsoft.SharePoint.WebPartPages.Communication
Namespace ConnectionCodeSamples
'Step #2: Inherit from the WebPart base class and implement the IListProvider interface.
Public Class ServerSideListProvider
Inherits WebPart
Implements IListProvider
' Step #3: Declare variables for IListProvider events.
' Because this class implements the IListProvider interface, it
' must declare the interface members ListProviderInit, ListReady,
' PartialListReady.
Public Event ListProviderInit As ListProviderInitEventHandler Implements IListProvider.ListProviderInit
Public Event ListReady As ListReadyEventHandler Implements IListProvider.ListReady
Public Event PartialListReady As PartialListReadyEventHandler Implements IListProvider.PartialListReady
' Declare variables for keeping track of connection state.
Private _connected As Boolean = False
Private _connectedWebPartTitle As String = String.Empty
Private _registrationErrorMsg As String = "An error has occurred trying to register your connection interfaces."
Private _registrationErrorOccurred As Boolean = False
Private _notConnectedMsg As String = "NOT CONNECTED. To use this Web Part connect it to a List Consumer Web Part."
' Declare variables for Web Part user interface.
Private _connectedWebPartLabel As String = "Connected to Web Part"
Private _dataGrid As New DataGrid()
Private _listButtonClicked As Boolean = False
Private _listButton As Button
' Declare variables for list information.
Private _listFieldDisplayNames() As String
Private _listFieldNames() As String
' Step #4: Override EnsureInterfaces method and call
' RegisterInterface method.
' EnsureInterfaces() is called by the Web Part Infrastructure
' during the ASP.NET PreRender event
' and allows the part to register all of its connection
' interfaces.
Public Overrides Sub EnsureInterfaces()
' If your Web Part is installed in the bin directory and the
' Code Access Security (CAS) setting doesn't
' allow Web Part Connections, an exception will be thrown. To
' allow your Web Part to behave
' well and continue working, a try/catch block should be used
' when attempting to register interfaces.
' Web Part Connections will only work if the level attribute
' of the <trust> tag in the
' web.config file is set to WSS_Minimal, WSS_Medium, or Full.
' By default a new SharePoint site
' is installed with the trust level set to WSS_Minimal.
Try
' Register the IListProvider interface.
' <param name="interfaceName">Friendly name of the
' interface that is being implemented.</param>
' <param name="interfaceType">Specifies which interface is
' being implemented.</param>
' <param name="maxConnections">Defines how many times this
' interface can be connected.</param>
' <param name="runAtOptions">Determines where the interface
' can run.</param>
' <param name="interfaceObject">Reference to the object
' that is implementing this interface.</param>
' <param name="interfaceClientReference">Name used to
' reference the interface on the client.
' This is a server side example so the value is set to
' empty string.</param>
' <param name="menuLabel">Label for the interface that
' appears in the UI</param>
' <param name="description">Description of the interface
' that appears in the UI</param>
' <param name="allowCrossPageConnection">Specifies if the
' interface can connect to a Web Part
' on a different page. This is an optional parameter with a
' default of false. Note that only some
' server-side interfaces are allowed to connect across
' pages by the Web Part Infrastructure.
' The IListProvider interface is not allowed to go cross
' page.</param>
RegisterInterface("MyListProviderInterface", InterfaceTypes.IListProvider, WebPart.UnlimitedConnections, ConnectionRunAt.Server, Me, "", "Provide List To", "Provides a list to a consumer Web Part.")
Catch se As SecurityException
_registrationErrorOccurred = True
End Try
End Sub
' Step #5: Override the CanRunAt method.
' The CanRunAt method is called by the Web Part Infrastructure during
' the ASP.NET PreRender event to determine where the Web Part can
' run based on its current configuration.
Public Overrides Function CanRunAt() As ConnectionRunAt
' This Web Part can run on the server.
Return ConnectionRunAt.Server
End Function
' Step #6: Override the PartCommunicationConnect method.
' The PartCommunicationConnect method is called by the Web Part
' infrastructure to notify the Web Part that it
' is connected during the ASP.NET PreRender event. Relevant
' information is passed to the part such as
' the interface it is connected over, the Web Part it is being
' connected to, and where the part will be running,
' either client or server side.
' <param name="interfaceName">Friendly name of the interface that
' is being connected</param>
' <param name="connectedPart">Reference to the other Web Part
' that is being connected to</param>
' <param name="connectedInterfaceName">Friendly name of the
' interface on the other Web Part</param>
' <param name="runAt">Where the interface should execute</param>
Public Overrides Sub PartCommunicationConnect(interfaceName As String, connectedPart As WebPart, connectedInterfaceName As String, runAt As ConnectionRunAt)
' Keep track of connection state.
If interfaceName = "MyListProviderInterface" Then
_connected = True
_connectedWebPartTitle = SPEncode.HtmlEncode(connectedPart.Title)
End If
End Sub
' Step #7: Override PartCommunicationInit method.
' PartCommunicationInit() is called by the Web Part
' infrastructure during the ASP.NET PreRender
' event to allow the part to pass initialization information to
' the other connected parts.
' It is important to always pass initialization information. Some
' parts may not behave properly if this initialization
' information is not received.
Public Overrides Sub PartCommunicationInit()
' Ensure that all of the Web Part's controls are created.
EnsureChildControls()
' Check if connected.
If _connected Then
' Create the ListProviderInitEventArgs object for the
' ListProviderInit event.
Dim listProviderInitArgs As New ListProviderInitEventArgs()
' Set the list field names.
listProviderInitArgs.FieldList = _listFieldNames
listProviderInitArgs.FieldDisplayList = _listFieldDisplayNames
' Fire the ListProviderInit event.
RaiseEvent ListProviderInit(Me, listProviderInitArgs)
End If
End Sub
' Step #8: Override the PartCommunicationMain method.
' The PartCommunicationMain method is called by the Web Part
' infrastructure on the client during the ASP.NET PreRender
' event to allow the part to pass its primary data to the other
' connected parts. It is important to always fire the ListReady
' or PartialListReady event. Some parts may not behave properly
' if they are left waiting for this information.
Public Overrides Sub PartCommunicationMain()
' Ensure that all of the Web Part's controls are created.
EnsureChildControls()
'Check if connected
If _connected Then
' Create the ListReadyEventArgs object for the
' ListProviderInit event.
Dim listReadyArgs As New ListReadyEventArgs()
' If user clicked button, send the value.
If _listButtonClicked Then
' Set the List to the value of the table in the
' DataGrid. This is the value that will be sent
' to the consumer Web Part.
listReadyArgs.List = CType(_dataGrid.DataSource, DataTable)
Else
' The user didn't click the button, so send a
' null DataTable to the consumer Web Part.
listReadyArgs.List = Nothing
End If
' Fire the ListReady event.
' The consumer Web Part will receive the DataTable.
RaiseEvent ListReady(Me, listReadyArgs)
End If
End Sub
Protected Overrides Sub RenderWebPart(output As HtmlTextWriter)
' Check for connection interface registration error.
If _registrationErrorOccurred Then
output.Write(_registrationErrorMsg)
Return
End If
' Ensure that all of the Web Part's controls are created.
EnsureChildControls()
' Check if connected.
If _connected Then
' Line break.
output.RenderBeginTag(HtmlTextWriterTag.Br)
output.RenderEndTag()
' Render the DataGrid control.
_dataGrid.RenderControl(output)
' Render the Button control.
_listButton.RenderControl(output)
' Line break.
output.RenderBeginTag(HtmlTextWriterTag.Br)
output.RenderEndTag()
' Render connected Web Part title.
output.Write((_connectedWebPartLabel + ": "))
output.RenderBeginTag(HtmlTextWriterTag.I)
output.Write(_connectedWebPartTitle)
output.RenderEndTag()
Else
' The Web Part isn't connected.
output.Write(_notConnectedMsg)
End If
End Sub
' Create Web Part user interface controls.
Protected Overrides Sub CreateChildControls()
' Create the Button control.
_listButton = New Button()
_listButton.ID = "ListButton"
_listButton.Text = "Fire ListReady"
Controls.Add(_listButton)
' Add event handler to listen for button Click event.
_listButtonClicked = False ' Initialize to false -- user hasn't clicked yet
AddHandler _listButton.Click, AddressOf ListButtonClicked ' listen for Button's click event
' Create the DataTable.
Dim dataTable As New DataTable()
' Add four column objects to the table.
Dim idColumn As New DataColumn()
idColumn.DataType = System.Type.GetType("System.Int32")
idColumn.ColumnName = "ID"
idColumn.Caption = "ID"
idColumn.AutoIncrement = True
dataTable.Columns.Add(idColumn)
Dim Product As New DataColumn()
Product.DataType = System.Type.GetType("System.String")
Product.ColumnName = "Product"
Product.Caption = "Product"
dataTable.Columns.Add(Product)
Dim productCategory As New DataColumn()
productCategory.DataType = System.Type.GetType("System.String")
productCategory.ColumnName = "Category"
productCategory.Caption = "Category"
dataTable.Columns.Add(productCategory)
Dim Stock As New DataColumn()
Stock.DataType = System.Type.GetType("System.Int32")
Stock.ColumnName = "Stock"
Stock.Caption = "Stock"
dataTable.Columns.Add(Stock)
' Once a table has been created, use the NewRow method to
' create rows.
Dim dataRow As DataRow
' Add first row to the collection.
dataRow = dataTable.NewRow()
dataRow("Product") = "Aniseed Syrup"
dataRow("Category") = "Condiments"
dataRow("Stock") = 25
dataTable.Rows.Add(dataRow)
' Add a second row
dataRow = dataTable.NewRow()
dataRow("Product") = "Vegie-spread"
dataRow("Category") = "Condiments"
dataRow("Stock") = 10
dataTable.Rows.Add(dataRow)
' Add a third row.
dataRow = dataTable.NewRow()
dataRow("Product") = "Outback Lager"
dataRow("Category") = "Beverages"
dataRow("Stock") = 30
dataTable.Rows.Add(dataRow)
' Add a fourth row.
dataRow = dataTable.NewRow()
dataRow("Product") = "Boston Crab Meat"
dataRow("Category") = "Seafood"
dataRow("Stock") = 10
dataTable.Rows.Add(dataRow)
' And a fifth row.
dataRow = dataTable.NewRow()
dataRow("Product") = "Tofu"
dataRow("Category") = "Produce"
dataRow("Stock") = 41
dataTable.Rows.Add(dataRow)
' Set the DataGrid's DataSource.
_dataGrid.DataSource = dataTable
_dataGrid.ID = "DataGrid"
' Format the DataGrid.
_dataGrid.HeaderStyle.Font.Bold = True
_dataGrid.HeaderStyle.ForeColor = Color.DarkBlue
_dataGrid.HeaderStyle.HorizontalAlign = HorizontalAlign.Center
_dataGrid.AlternatingItemStyle.BackColor = Color.Beige
_dataGrid.DataBind()
Controls.Add(_dataGrid)
' Set the DataTable FieldName information.
'This information will be passed to the Consumer by firing the
' ListProviderInit event.
Dim columnCount As Integer = dataTable.Columns.Count
_listFieldNames = New String(columnCount) {}
_listFieldDisplayNames = New String(columnCount) {}
Dim i As Integer
For i = 0 To columnCount - 1
_listFieldNames(i) = dataTable.Columns(i).ColumnName
_listFieldDisplayNames(i) = dataTable.Columns(i).Caption
Next i
End Sub
' The Button OnClick event handler
' <param name="sender">The Button object</param>
' <param name="e">The Event Arguments</param>
Private Sub ListButtonClicked(sender As Object, e As EventArgs)
_listButtonClicked = True 'user clicked button, set to true
End Sub
End Class
End Namespace
// Common .NET required namespaces
using System;
using System.ComponentModel;
using System.Web.UI;
// WebPart required namespaces
using Microsoft.SharePoint.WebPartPages;
using System.Xml.Serialization;
using System.Web.UI.WebControls;
// DataGrid and user interface namespaces
using System.Data;
using System.Drawing;
// Code Access Security namespaces
using System.Security;
using Microsoft.SharePoint.Utilities;
//Step #1: Reference the Communication namespace.
using Microsoft.SharePoint.WebPartPages.Communication;
namespace ConnectionCodeSamples
{
//Step #2: Inherit from the WebPart base class and implement the
//IListProvider interface.
public class ServerSideListProvider : WebPart, IListProvider
{
// Step #3: Declare variables for IListProvider events.
// Because this class implements the IListProvider interface,
// it must declare the interface members ListProviderInit,
// ListReady, PartialListReady.
public event ListProviderInitEventHandler ListProviderInit;
public event ListReadyEventHandler ListReady;
public event PartialListReadyEventHandler PartialListReady;
// Declare variables for keeping track of connection state.
private bool _connected = false;
private string _connectedWebPartTitle = string.Empty;
private string _registrationErrorMsg = "An error has occurred trying to register your connection interfaces.";
private bool _registrationErrorOccurred = false;
private string _notConnectedMsg = "NOT CONNECTED. To use this Web Part connect it to a List Consumer Web Part.";
// Declare variables for Web Part user interface.
private string _connectedWebPartLabel = "Connected to Web Part";
private DataGrid _dataGrid = new DataGrid();
private bool _listButtonClicked = false;
private Button _listButton;
// Declare variables for list information.
private string[] _listFieldDisplayNames;
private string[] _listFieldNames;
// Step #4: Override EnsureInterfaces method and call RegisterInterface method.
// EnsureInterfaces() is called by the Web Part Infrastructure during the ASP.NET PreRender event
// and allows the part to register all of its connection interfaces.
public override void EnsureInterfaces()
{
// If your Web Part is installed in the bin directory and
// the Code Access Security (CAS) setting doesn't
// allow Web Part Connections, an exception will be thrown.
// To allow your Web Part to behave
// well and continue working, a try/catch block should be
// used when attempting to register interfaces.
// Web Part Connections will only work if the level
// attribute of the <trust> tag in the
// web.config file is set to WSS_Minimal, WSS_Medium, or
// Full. By default a new SharePoint site
// is installed with the trust level set to WSS_Minimal.
try
{
// Register the IListProvider interface.
// <param name="interfaceName">Friendly name of the
// interface that is being implemented.</param>
// <param name="interfaceType">Specifies which
// interface is being implemented.</param>
// <param name="maxConnections">Defines how many times
// this interface can be connected.</param>
// <param name="runAtOptions">Determines where the
// interface can run.</param>
// <param name="interfaceObject">Reference to the
// object that is implementing this interface.</param>
// <param name="interfaceClientReference">Name used to
// reference the interface on the client.
// This is a server side example so the value is set to
// empty string.</param>
// <param name="menuLabel">Label for the interface
// which appears in the UI</param>
// <param name="description">Description of the
// interface which appears in the UI</param>
// <param name="allowCrossPageConnection">Specifies if
// the interface can connect to a Web Part
// on a different page. This is an optional parameter
// with a default of false. Note that only some
// server side interfaces are allowed to connect across
// pages by the Web Part Infrastructure.
// The IListProvider interface is not allowed to go
// cross page.</param>
RegisterInterface("MyListProviderInterface", //InterfaceName
InterfaceTypes.IListProvider, //InterfaceType
WebPart.UnlimitedConnections, //MaxConnections
ConnectionRunAt.Server, //RunAtOptions
this, //InterfaceObject
"", //InterfaceClientReference
"Provide List To", //MenuLabel
"Provides a list to a consumer Web Part."); //Description
}
catch(SecurityException se)
{
_registrationErrorOccurred = true;
}
}
// Step #5: Override the CanRunAt method.
// The CanRunAt method is called by the Web Part Infrastructure
// during the ASP.NET PreRender event
// to determine where the Web Part can run based on its current
// configuration.
public override ConnectionRunAt CanRunAt()
{
// This Web Part can run on the server.
return ConnectionRunAt.Server;
}
// Step #6: Override the PartCommunicationConnect method.
// The PartCommunicationConnect method is called by the Web
// Part infrastructure to notify the Web Part that it
// is connected during the ASP.NET PreRender event. Relevant
// information is passed to the part such as
// the interface it is connected over, the Web Part it is being
// connected to, and where the part will be running,
// either client or server side.
// <param name="interfaceName">Friendly name of the interface
// that is being connected</param>
// <param name="connectedPart">Reference to the other Web Part
// that is being connected to</param>
// <param name="connectedInterfaceName">Friendly name of the
// interface on the other Web Part</param>
// <param name="runAt">Where the interface should
// execute</param>
public override void PartCommunicationConnect(
string interfaceName,
WebPart connectedPart,
string connectedInterfaceName,
ConnectionRunAt runAt)
{
// Keep track of connection state.
if (interfaceName == "MyListProviderInterface")
{
_connected = true;
_connectedWebPartTitle = SPEncode.HtmlEncode(connectedPart.Title);
}
}
// Step #7: Override PartCommunicationInit method.
// PartCommunicationInit() is called by the Web Part
// infrastructure during the ASP.NET PreRender
// event to allow the part to pass initialization information
// to the other connected parts.
// It is important to always pass initialization information.
// Some parts may not behave properly if this initialization
// information is not received.
public override void PartCommunicationInit()
{
// Ensure that all of the Web Part's controls are created.
EnsureChildControls();
// Check if connected.
if(_connected)
{
// If there is a listener, fire ListProviderInit event.
if (ListProviderInit != null)
{
//Create the ListProviderInitEventArgs object for
//the ListProviderInit event.
ListProviderInitEventArgs listProviderInitArgs = new ListProviderInitEventArgs();
// Set the list field names.
listProviderInitArgs.FieldList = _listFieldNames;
listProviderInitArgs.FieldDisplayList = _listFieldDisplayNames;
// Fire the ListProviderInit event.
ListProviderInit(this, listProviderInitArgs);
}
}
}
// Step #8: Override the PartCommunicationMain method.
// The PartCommunicationMain method is called by the Web Part
// infrastructure on the client during the ASP.NET PreRender
// event to allow the part to pass its primary data to the
// other connected parts.
// It is important to always fire the ListReady or
// PartialListReady event. Some parts
// may not behave properly if they are left waiting for this
// information.
public override void PartCommunicationMain()
{
// Ensure that all of the Web Part's controls are created.
EnsureChildControls();
//Check if connected
if(_connected)
{
// If there is a listener, fire the ListReady event.
if (ListReady != null)
{
// Create the ListReadyEventArgs object for the
// ListProviderInit event.
ListReadyEventArgs listReadyArgs = new ListReadyEventArgs();
// If user clicked button, send the value.
if (_listButtonClicked)
{
// Set the List to the value of the table in
// the DataGrid.
// This is the value that will be sent to the
// consumer Web Part.
listReadyArgs.List = ((DataTable)_dataGrid.DataSource);
}
else
{
// The user didn't click the button, so send a
// null DataTable to the consumer Web Part.
listReadyArgs.List = null;
}
// Fire the ListReady event.
// The consumer Web Part will receive the
// DataTable.
ListReady(this, listReadyArgs);
}
}
}
protected override void RenderWebPart(HtmlTextWriter output)
{
// Check for connection interface registration error.
if (_registrationErrorOccurred)
{
output.Write(_registrationErrorMsg);
return;
}
// Ensure that all of the Web Part's controls are created.
EnsureChildControls();
// Check if connected.
if(_connected)
{
// Line break.
output.RenderBeginTag(HtmlTextWriterTag.Br);
output.RenderEndTag();
// Render the DataGrid control.
_dataGrid.RenderControl(output);
// Render the Button control.
_listButton.RenderControl(output);
// Line break.
output.RenderBeginTag(HtmlTextWriterTag.Br);
output.RenderEndTag();
// Render connected Web Part title.
output.Write(_connectedWebPartLabel + ": ");
output.RenderBeginTag(HtmlTextWriterTag.I);
output.Write(_connectedWebPartTitle);
output.RenderEndTag();
}
else
{
// The Web Part isn't connected.
output.Write(_notConnectedMsg);
}
}
// Create Web Part user interface controls.
protected override void CreateChildControls()
{
// Create the Button control.
_listButton = new Button();
_listButton.ID = "ListButton";
_listButton.Text = "Fire ListReady";
Controls.Add(_listButton);
// Add event handler to listen for button Click event.
_listButtonClicked = false; // Initialize to false -- user hasn't clicked yet
_listButton.Click += new EventHandler(ListButtonClicked); // listen for Button's click event
// Create the DataTable.
DataTable dataTable = new DataTable();
// Add four column objects to the table.
DataColumn idColumn = new DataColumn();
idColumn.DataType = System.Type.GetType("System.Int32");
idColumn.ColumnName = "ID";
idColumn.Caption = "ID";
idColumn.AutoIncrement = true;
dataTable.Columns.Add(idColumn);
DataColumn Product = new DataColumn();
Product.DataType = System.Type.GetType("System.String");
Product.ColumnName = "Product";
Product.Caption = "Product";
dataTable.Columns.Add(Product);
DataColumn productCategory = new DataColumn();
productCategory.DataType = System.Type.GetType("System.String");
productCategory.ColumnName = "Category";
productCategory.Caption = "Category";
dataTable.Columns.Add(productCategory);
DataColumn Stock = new DataColumn();
Stock.DataType = System.Type.GetType("System.Int32");
Stock.ColumnName = "Stock";
Stock.Caption = "Stock";
dataTable.Columns.Add(Stock);
// Once a table has been created, use the NewRow method to
// create rows.
DataRow dataRow;
// Add first row to the collection.
dataRow = dataTable.NewRow();
dataRow["Product"] = "Aniseed Syrup";
dataRow["Category"] = "Condiments";
dataRow["Stock"] = 25;
dataTable.Rows.Add(dataRow);
// Add a second row
dataRow = dataTable.NewRow();
dataRow["Product"] = "Vegie-spread";
dataRow["Category"] = "Condiments";
dataRow["Stock"] = 10;
dataTable.Rows.Add(dataRow);
// Add a third row.
dataRow = dataTable.NewRow();
dataRow["Product"] = "Outback Lager";
dataRow["Category"] = "Beverages";
dataRow["Stock"] = 30;
dataTable.Rows.Add(dataRow);
// Add a fourth row.
dataRow = dataTable.NewRow();
dataRow["Product"] = "Boston Crab Meat";
dataRow["Category"] = "Seafood";
dataRow["Stock"] = 10;
dataTable.Rows.Add(dataRow);
// And a fifth row.
dataRow = dataTable.NewRow();
dataRow["Product"] = "Tofu";
dataRow["Category"] = "Produce";
dataRow["Stock"] = 41;
dataTable.Rows.Add(dataRow);
// Set the DataGrid's DataSource.
_dataGrid.DataSource = dataTable;
_dataGrid.ID = "DataGrid";
// Format the DataGrid.
_dataGrid.HeaderStyle.Font.Bold = true;
_dataGrid.HeaderStyle.ForeColor = Color.DarkBlue;
_dataGrid.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
_dataGrid.AlternatingItemStyle.BackColor = Color.Beige;
_dataGrid.DataBind();
Controls.Add(_dataGrid);
// Set the DataTable FieldName information.
//This information will be passed to the Consumer by firing
// the ListProviderInit event.
int columnCount = dataTable.Columns.Count;
_listFieldNames = new string[columnCount];
_listFieldDisplayNames = new string[columnCount];
for(int i = 0; i < columnCount; i++)
{
_listFieldNames[i] = dataTable.Columns[i].ColumnName;
_listFieldDisplayNames[i] = dataTable.Columns[i].Caption;
}
}
// The Button OnClick event handler
// <param name="sender">The Button object</param>
// <param name="e">The Event Arguments</param>
private void ListButtonClicked(object sender, EventArgs e)
{
_listButtonClicked = true; //user clicked button, set to true
}
}
}
См. также
Справочные материалы
Пространство имен Microsoft.SharePoint.WebPartPages.Communication