protected void Button4_Click(object sender, EventArgs e)
{
string accessToken = ((Button)sender).CommandArgument;
Int16 operationCount = 0;
if (IsPostBack)
{
// Get the host web's URL.
sharepointUrl = new Uri(Request.QueryString["SPHostUrl"]);
}
// Create the parent request
var batchRequest = new BatchODataRequest(String.Format("{0}/_api/", sharepointUrl)); // ctor adds "$batch"
batchRequest.SetHeader("Authorization", "Bearer " + accessToken);
using (var oDataMessageWriter = new ODataMessageWriter(batchRequest))
{
var oDataBatchWriter = oDataMessageWriter.CreateODataBatchWriter();
oDataBatchWriter.WriteStartBatch();
oDataBatchWriter.WriteStartChangeset();
// Create the list deleting operation
var deleteOperation = oDataBatchWriter.CreateOperationRequestMessage(
"DELETE", new Uri(sharepointUrl.ToString() + "/_api/Web/lists/getbytitle(\'" +OldList.Text+ "\')"));
deleteOperation.SetHeader("If-Match", "\"1\"");
oDataBatchWriter.WriteEndChangeset();
operationCount++;
// Create the query operation
var queryOperationMessage3 = oDataBatchWriter.CreateOperationRequestMessage(
"GET", new Uri(sharepointUrl.ToString() + "/_api/Web/lists"));
operationCount++;
oDataBatchWriter.WriteEndBatch();
oDataBatchWriter.Flush();
}
// Parse the response and bind the data to the UI controls
var oDataResponse = batchRequest.GetResponse();
using (var oDataReader = new ODataMessageReader(oDataResponse))
{
var oDataBatchReader = oDataReader.CreateODataBatchReader();
while (oDataBatchReader.Read())
{
switch (oDataBatchReader.State)
{
case ODataBatchReaderState.Initial:
// Optionally, handle the start of a batch payload.
break;
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a changeset)
var operationResponse = oDataBatchReader.CreateOperationResponseMessage();
// Response ATOM markup parsing and presentation
using (var stream = operationResponse.GetStream())
{
switch (operationCount)
{
case 2: // The "delete list" operation
if (operationResponse.StatusCode == 200)
{
DeleteListResponse.Text = "Your list was deleted!";
}
else
{
DeleteListResponse.Text = "Your list was not deleted. Status returned: " + operationResponse.StatusCode.ToString();
}
operationCount--;
break;
case 1: // The "List of Lists" operation
// Bind data to the grid on the page.
// In a production app, check operationResponse.StatusCode and handle non-200 statuses.
// For simplicity, this sample assumes status 200 (the list items are returned).
List<XElement> entries = SharePointDataHelpers.ListDataHelper.ExtractListItemsFromATOMResponse(stream);
var itemTitles = SharePointDataHelpers.ListDataHelper.GetItemTitles(entries);
GridView4.DataSource = itemTitles;
GridView4.DataBind();
operationCount--;
break;
}
};
break;
case ODataBatchReaderState.ChangesetStart:
// Optionally, handle the start of a change set.
break;
case ODataBatchReaderState.ChangesetEnd:
// When this sample was created, SharePoint did not support "all or nothing" transactions.
// If that changes in the future this is where you would commit the transaction.
break;
case ODataBatchReaderState.Exception:
// In a producition app handle exeception. Omitted for simplicity in this sample app.
break;
}
}
}
GridView3.Visible = false;
}
protected void Button2_Click(object sender, EventArgs e)
{
string accessToken = ((Button)sender).CommandArgument;
Int16 listRetrievalCount = 0;
if (IsPostBack)
{
// Get the host web's URL.
sharepointUrl = new Uri(Request.QueryString["SPHostUrl"]);
}
// Create the parent request
var batchRequest = new BatchODataRequest(String.Format("{0}/_api/", sharepointUrl)); // ctor adds "$batch"
batchRequest.SetHeader("Authorization", "Bearer " + accessToken);
using (var oDataMessageWriter = new ODataMessageWriter(batchRequest))
{
var oDataBatchWriter = oDataMessageWriter.CreateODataBatchWriter();
oDataBatchWriter.WriteStartBatch();
// Create the two child query operations.
oDataBatchWriter.CreateOperationRequestMessage(
"GET", new Uri(sharepointUrl.ToString() + "/_api/Web/lists/getbytitle('Composed Looks')/items?$select=Title"));
listRetrievalCount++;
oDataBatchWriter.CreateOperationRequestMessage(
"GET", new Uri(sharepointUrl.ToString() + "/_api/Web/lists/getbytitle('User Information List')/items?$select=Title"));
listRetrievalCount++;
oDataBatchWriter.WriteEndBatch();
oDataBatchWriter.Flush();
}
// Parse the response and bind the data to the UI controls
var oDataResponse = batchRequest.GetResponse();
using (var oDataReader = new ODataMessageReader(oDataResponse))
{
var oDataBatchReader = oDataReader.CreateODataBatchReader();
while (oDataBatchReader.Read())
{
switch (oDataBatchReader.State)
{
case ODataBatchReaderState.Initial:
// Optionally, handle the start of a batch payload.
break;
case ODataBatchReaderState.Operation:
// Start of an operation (either top-level or in a changeset)
var operationResponse = oDataBatchReader.CreateOperationResponseMessage();
// Response's ATOM markup parsing and presentation section
using (var stream = operationResponse.GetStream())
{
List<XElement> entries = SharePointDataHelpers.ListDataHelper.ExtractListItemsFromATOMResponse(stream);
var itemTitles = SharePointDataHelpers.ListDataHelper.GetItemTitles(entries);
// Bind data to the grid on the page.
// In a production app, check operationResponse.StatusCode and handle non-200 statuses.
// For simplicity, this sample assumes status 200 (the list items are returned).
switch (listRetrievalCount)
{
case 2:
GridView2.DataSource = itemTitles;
GridView2.DataBind();
listRetrievalCount--;
break;
case 1:
GridView1.DataSource = itemTitles;
GridView1.DataBind();
listRetrievalCount--;
break;
}
};
break;
case ODataBatchReaderState.ChangesetStart:
// Optionally, handle the start of a change set.
break;
case ODataBatchReaderState.ChangesetEnd:
// When this sample was created, SharePoint did not support "all or nothing" transactions.
// If that changes in the future this is where you would commit the transaction.
break;
case ODataBatchReaderState.Exception:
// In a producition app handle exeception. Omitted for simplicity in this sample app.
break;
}
}
}
TwoLists.Visible = true;
}
protected void Button3_Click(object sender, EventArgs e)
{
string accessToken = ((Button)sender).CommandArgument;
Int16 operationCount = 0;
if (IsPostBack)
{
// Get the host web's URL.
sharepointUrl = new Uri(Request.QueryString["SPHostUrl"]);
}
// Create the parent request
var batchRequest = new BatchODataRequest(String.Format("{0}/_api/", sharepointUrl)); // ctor adds "$batch"
batchRequest.SetHeader("Authorization", "Bearer " + accessToken);
using (var oDataMessageWriter = new ODataMessageWriter(batchRequest))
{
var oDataBatchWriter = oDataMessageWriter.CreateODataBatchWriter();
oDataBatchWriter.WriteStartBatch();
oDataBatchWriter.WriteStartChangeset();
// Create the list adding operation
var addListOperation = oDataBatchWriter.CreateOperationRequestMessage(
"POST", new Uri(sharepointUrl.ToString() + "/_api/lists"));
addListOperation.SetHeader("Content-Type", "application/json;odata=verbose");
// Write the body of the operation
using (var oDataInsertWriter = new ODataMessageWriter(addListOperation))
{
var entryWriter = oDataInsertWriter.CreateODataEntryWriter();
var insertionBody = new ODataEntry()
{
Properties = new[]
{
new ODataProperty() {Name = "Title", Value = NewList.Text},
new ODataProperty() {Name = "BaseTemplate", Value = "100"}
}
};
// Set the "__metadata" type property
insertionBody.TypeName = "SP.List";
entryWriter.WriteStart(insertionBody);
entryWriter.WriteEnd();
}
oDataBatchWriter.WriteEndChangeset();
operationCount++;
// Create the query operation
var queryOperationMessage3 = oDataBatchWriter.CreateOperationRequestMessage(
"GET", new Uri(sharepointUrl.ToString() + "/_api/Web/lists"));
operationCount++;
oDataBatchWriter.WriteEndBatch();
oDataBatchWriter.Flush();
}
// Parse the response and bind the data to the UI controls
var oDataResponse = batchRequest.GetResponse();
using (var oDataReader = new ODataMessageReader(oDataResponse))
{
var oDataBatchReader = oDataReader.CreateODataBatchReader();
while (oDataBatchReader.Read())
{
switch (oDataBatchReader.State)
{
case ODataBatchReaderState.Initial:
// Optionally, handle the start of a batch payload.
break;
case ODataBatchReaderState.Operation:
// Encountered an operation (either top-level or in a changeset)
var operationResponse = oDataBatchReader.CreateOperationResponseMessage();
// Response ATOM markup parsing and presentation
using (var stream = operationResponse.GetStream())
{
switch (operationCount)
{
case 2: // The "add new list" operation
if (operationResponse.StatusCode == 201)
{
AddListResponse.Text = "Your list was created!";
}
else
{
AddListResponse.Text = "Your list was not created. Status returned: " + operationResponse.StatusCode.ToString();
}
operationCount--;
break;
case 1: // The "List of Lists" operation
// Bind data to the grid on the page.
// In a production app, check operationResponse.StatusCode and handle non-200 statuses.
// For simplicity, this sample assumes status 200 (the list items are returned).
List<XElement> entries = SharePointDataHelpers.ListDataHelper.ExtractListItemsFromATOMResponse(stream);
var itemTitles = SharePointDataHelpers.ListDataHelper.GetItemTitles(entries);
GridView3.DataSource = itemTitles;
GridView3.DataBind();
operationCount--;
break;
}
};
break;
case ODataBatchReaderState.ChangesetStart:
// Optionally, handle the start of a change set.
break;
case ODataBatchReaderState.ChangesetEnd:
// When this sample was created, SharePoint did not support "all or nothing" transactions.
// If that changes in the future this is where you would commit the transaction.
break;
case ODataBatchReaderState.Exception:
// In a producition app handle exeception. Omitted for simplicity in this sample app.
break;
}
}
}
GridView3.Visible = true;
TwoLists.Visible = false;
}
