blocks|key|1495374|text|Directory.Exists()可能会为你工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1495375|if+(Directory.Exists(folderString))
{
++++//+Do+something
}|code-block|syntax|javascript|1495376|不要忘记System.IO名称空间：|style|CODE|1495377|using+System.IO;|1495378|UPDATE：在将来，如果您要查找一个文件，您可以使用File.Exists()+(也在System.IO名称空间中)做同样的事情。|BOLD|1495379|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.io.directory.exists%2528v=vs.110%2529.aspx^0|0|I|0|0|0|4|9|0|0|0|6|R|D|18|9|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|F|7|13|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|14|8|@$A|15|B|16|K|L]]|9|@]|C|$]]|$1|M|3|N|5|F|7|17|8|@]|9|@]|C|$G|H]]|$1|O|3|P|5|6|7|18|8|@$A|19|B|1A|K|Q]|$A|1B|B|1C|K|L]|$A|1D|B|1E|K|L]]|9|@]|C|$]]|$1|R|3|-4|5|6|7|1F|8|@]|9|@]|C|$]]]|S|$T|$5|U|V|W|C|$X|Y]]]]

<a href="http://msdn.microsoft.com/en-us/library/system.io.directory.exists%28v=vs.110%29.aspx" rel="nofollow" title="Directory.Exists&#40;&#41;">Directory.Exists()</a> might work for you.

<pre><code>if (Directory.Exists(folderString))
{
 // Do something
}
</code></pre>

Don't forget the <code>System.IO</code> namespace:

<pre><code>using System.IO;
</code></pre>

UPDATE: In the future, if you're looking for a file, you can do the same thing with <code>File.Exists()</code>, which is also in the <code>System.IO</code> namespace.

blocks|key|1207623|text|if+(!Directory.Exists(folder))
{
++++ReportingService2010.CreateFolder(folder,+parentFolder,+null);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1207624|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>if (!Directory.Exists(folder))
{
 ReportingService2010.CreateFolder(folder, parentFolder, null);
}
</code></pre>

blocks|key|1202301|text|另一种可能的选择是直接使用报表服务器数据库中Catalog表的path、type和parentid字段。如果您打开Server并查看该表，您应该非常清楚需要做什么。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1202302|可以使用C#运行SQL命令，如|1202303|SELECT+COUNT(*)+FROM+CATALOG+WHERE+PATH+LIKE+'%25TheFolderNameImLookingFor%25'|code-block|syntax|javascript|1202304|如果计数大于零，则文件夹存在。|1202305|您可以根据您的需要更改此选项。文件夹项的类型为1；报表项的类型为2，因此可以使用此类型来区分报表和文件夹。|1202306|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Another possible alternative is to directly work with the path, type, and parentid fields of the Catalog table in your report server database. If you open SQL Server and look at the table, it should be pretty clear what you need to do.

You can use C# to run a SQL command such as 

<pre><code>SELECT COUNT(*) FROM CATALOG WHERE PATH LIKE '%TheFolderNameImLookingFor%'
</code></pre>

If the count is greater than zero, then the folder exists.

You can vary this for your needs. Folder items have a type of 1; Report items have a type of 2, so you can use this to distinguish between reports and folders.

blocks|key|1495416|text|如何删除文件夹，如果它们存在使用ListChildren；|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1495417|++++++++var+items+=+ReportingService2010.ListChildren(parentFolder,+false);
++++++++if+(items.Where(x+=>+x.TypeName+==+"Folder").Any(x+=>+x.Name+==+folder))
++++++++{
++++++++++++ReportingService2010.DeleteItem(folder,+parentFolder,+null);
++++++++}|code-block|syntax|javascript|1495418|entityMap^0|G|C|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

How to delete folders if they exist using <code>ListChildren</code>;

<pre><code> var items = ReportingService2010.ListChildren(parentFolder, false);
 if (items.Where(x =&gt; x.TypeName == "Folder").Any(x =&gt; x.Name == folder))
 {
 ReportingService2010.DeleteItem(folder, parentFolder, null);
 }
</code></pre>

blocks|key|1207718|text|我认为最好的方法是ReportService2010.GetItemType()方法。这将返回一个字符串(ReportingService2010.ListItemTypes()方法)，包括不存在(而不是抛出异常)的可能值"Unknown"或文件夹的"Folder"。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1207719|entityMap|0|LINK|mutability|MUTABLE|url|http://technet.microsoft.com/en-us/library/reportservice2010.reportingservice2010.getitemtype.aspx|1|https://technet.microsoft.com/en-us/library/reportservice2010.reportingservice2010.listitemtypes.aspx^0|33|9|3H|8|9|V|0|1H|10|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]|$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

I think the nicest way is <a href="http://technet.microsoft.com/en-us/library/reportservice2010.reportingservice2010.getitemtype.aspx" rel="nofollow">ReportService2010.GetItemType()</a> method. This returns a string (<a href="https://technet.microsoft.com/en-us/library/reportservice2010.reportingservice2010.listitemtypes.aspx" rel="nofollow">ReportingService2010.ListItemTypes()</a> method), including possible values <code>"Unknown"</code> for non-existent (rather than throwing an exception) or <code>"Folder"</code> for a folder.

I Have spent hours looking but without any success.

I am programmatically creating snap shots of reports in SSRS using c# which creates report folders. The reports are created in these folders but to prevent errors occurring I am deleting the whole folder structure and then re-creating the reports to prevent SSRS throwing an exception.

I am using ReportingService2010.

<pre><code>ReportingService2010.DeleteItem(deleteFolderPath);
</code></pre>

…

<pre><code>ReportingService2010.CreateFolder(folder, parentFolder, null);
</code></pre>

-- This is the line where I need to check if the folder and report exist

<pre><code>var ret = CheckExist(linkedReportName, newParent);

var param = GetReportParameters(existingReportPath);

ReportingService2010.SetItemParameters(existingReportPath, param);
</code></pre>

-- If I do not delete the folder structure the error will be thrown after this in a try/Catch 

<pre><code>ReportingService2010.CreateLinkedItem(linkedReportName, newParent, existingReportPath, props);
</code></pre>

I need to add a method to see if the report and report folder has already been created

Using c# how can I programmatically check if a folder exists on my reporting server

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我花了好几个小时寻找，但没有成功。我正在编程地创建SSRS中报表的快照，使用创建报表文件夹的c#。报告是在这些文件夹中创建的，但是为了防止出现错误，我将删除整个文件夹结构，然后重新创建报告，以防止SSRS抛出异常。我正在使用ReportingService2010。ReportingService2010.Delete...

问如何使用c#以编程方式检查报表服务器上是否存在文件夹
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