العثور على جداول الاستعلام وكائنات القائمة المتعلقة باتصالات البيانات الخارجية
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في بعض الأحيان، تحتاج إلى معرفة جداول الاستعلام وكائنات القائمة المتعلقة باتصال بيانات خارجي معين. تتعلق جداول الاستعلام بكائن اتصال البيانات الخارجية باستخدام معرف الاتصال، بينما تتعلق كائنات القائمة بجدول استعلام معين.
العثور على جداول الاستعلام وكائنات القائمة المتعلقة باتصالات البيانات الخارجية
تشرح أكواد العينة التالية مع ملف إكسل عينة كيفية العثور على جداول الاستعلام وكائنات القائمة المتعلقة باتصال بيانات خارجي.
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET | |
// The path to the documents directory. | |
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); | |
// Load workbook object | |
Workbook workbook = new Workbook(dataDir + "sample.xlsm"); | |
// Check all the connections inside the workbook | |
for (int i = 0; i < workbook.DataConnections.Count; i++) | |
{ | |
Aspose.Cells.ExternalConnections.ExternalConnection externalConnection = workbook.DataConnections[i]; | |
Console.WriteLine("connection: " + externalConnection.Name); | |
PrintTables(workbook, externalConnection); | |
Console.WriteLine(); | |
} | |
Console.WriteLine("Press any key to continue..."); | |
Console.ReadKey(); |
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// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET | |
public static void PrintTables(Workbook workbook, Aspose.Cells.ExternalConnections.ExternalConnection ec) | |
{ | |
// Iterate all the worksheets | |
for (int j = 0; j < workbook.Worksheets.Count; j++) | |
{ | |
Worksheet worksheet = workbook.Worksheets[j]; | |
// Check all the query tables in a worksheet | |
for (int k = 0; k < worksheet.QueryTables.Count; k++) | |
{ | |
Aspose.Cells.QueryTable qt = worksheet.QueryTables[k]; | |
// Check if query table is related to this external connection | |
if (ec.Id == qt.ConnectionId | |
&& qt.ConnectionId >= 0) | |
{ | |
// Print the query table name and print its refersto range | |
Console.WriteLine("querytable " + qt.Name); | |
string n = qt.Name.Replace('+', '_').Replace('=', '_'); | |
Name name = workbook.Worksheets.Names["'" + worksheet.Name + "'!" + n]; | |
if (name != null) | |
{ | |
Range range = name.GetRange(); | |
if (range != null) | |
{ | |
Console.WriteLine("refersto: " + range.RefersTo); | |
} | |
} | |
} | |
} | |
// Iterate all the list objects in this worksheet | |
for (int k = 0; k < worksheet.ListObjects.Count; k++) | |
{ | |
ListObject table = worksheet.ListObjects[k]; | |
// Check the data source type if it is query table | |
if (table.DataSourceType == Aspose.Cells.Tables.TableDataSourceType.QueryTable) | |
{ | |
// Access the query table related to list object | |
QueryTable qt = table.QueryTable; | |
// Check if query table is related to this external connection | |
if (ec.Id == qt.ConnectionId | |
&& qt.ConnectionId >= 0) | |
{ | |
// Print the query table name and print its refersto range | |
Console.WriteLine("querytable " + qt.Name); | |
Console.WriteLine("Table " + table.DisplayName); | |
Console.WriteLine("refersto: " + worksheet.Name + "!" + CellsHelper.CellIndexToName(table.StartRow, table.StartColumn) + ":" + CellsHelper.CellIndexToName(table.EndRow, table.EndColumn)); | |
} | |
} | |
} | |
} | |
} |
الناتج التالي هو إخراج وحدة التحكم لتشغيل أكواد العينة السابقة مع ملف إكسل عينة.
connection: AAPL Connection
querytable hp?s=AAPL+Historical+Prices
refersto: =Sheet1!$Q$1:$W$69
connection: BOSL066360W7_SQLEXPRESS Test
querytable BOSL066360W7_SQLEXPRESS Test
Table Table_BOSL066360W7_SQLEXPRESS_Test
refersto: Sheet1!A1:B3
connection: BOSL066360W7_SQLEXPRESS Test1
querytable BOSL066360W7_SQLEXPRESS Test_1
Table Table_BOSL066360W7_SQLEXPRESS_Test_1
refersto: Sheet1!D1:E2
connection: UWTI Connection
querytable hp?s=UWTI+Historical+Prices
refersto: =Sheet1!$H$1:$N$69