Hi ,
i am developing a basic webpart, which contain a button.when user clicks on button. it should perform some IO operation.but when user clicks it is giving fallowing exception.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
to work on this i had created my own policy file:
<configuration>
<mscorlib>
<security>
<policy>
<PolicyLevel version="1">
<SecurityClasses>
<SecurityClass Name="AllMembershipCondition" Description="System.Security.Policy.AllMembershipC ondition, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="AspNetHostingPermission" Description="System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="FirstMatchCodeGroup" Description="System.Security.Policy.FirstMatchCode Group, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="NamedPermissionSet" Description="System.Security.NamedPermissionSet"/>
<SecurityClass Name="SecurityPermission" Description="System.Security.Permissions.SecurityP ermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="StrongNameMembershipCondition" Description="System.Security.Policy.StrongNameMemb ershipCondition, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="UnionCodeGroup" Description="System.Security.Policy.UnionCodeGroup , mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="UrlMembershipCondition" Description="System.Security.Policy.UrlMembershipC ondition, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<SecurityClass Name="WebPartPermission" Description="Microsoft.SharePoint.Security.WebPart Permission, Microsoft.SharePoint.Security, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"/>
<SecurityClass Name="ZoneMembershipCondition" Description="System.Security.Policy.ZoneMembership Condition, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
<--My Custom Secutity Class-->
<SecurityClass Name="IOPermission" Description="System.Security.Permissions.FileIOPer mission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
</SecurityClasses>
<NamedPermissionSets>
<PermissionSet
class="NamedPermissionSet"
version="1"
Unrestricted="true"
Name="FullTrust"
Description="Allows full access to all resources"
/>
<PermissionSet
class="NamedPermissionSet"
version="1"
Name="Nothing"
Description="Denies all resources, including the right to execute"
/>
<PermissionSet
class="NamedPermissionSet"
version="1"
Name="SPRestricted">
<IPermission
class="AspNetHostingPermission"
version="1"
Level="Minimal"
/>
<IPermission
class="SecurityPermission"
version="1"
Flags="Execution"
/>
<IPermission class="WebPartPermission"
version="1"
Connections="True"
/>
<--My Custom Permission -->
</PermissionSet>
<PermissionSet
class="NamedPermissionSet"
version="1"
Name="CustomPermission" Unrestricted="true">
<IPermission
class="AspNetHostingPermission"
version="1"
Level="Minimal"
/>
<IPermission
class="SecurityPermission"
version="1"
Flags="Execution"
/>
<IPermission class="WebPartPermission"
version="1"
Connections="True"
/>
<IPermission class="IOPermission"
version="1"
Read="C:\"
Write="C:\"
Append="C:\"
PathDiscovery="C:\"
/>
<IPermission class="System.Security.Permissions.ReflectionPermi ssion, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
version="1"
Flags="3" />
</PermissionSet>
</NamedPermissionSets>
<CodeGroup
class="FirstMatchCodeGroup"
version="1"
PermissionSetName="Nothing">
<IMembershipCondition
class="AllMembershipCondition"
version="1"
/>
<--My Custom Code Group -->
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="CustomPermission">
<IMembershipCondition
class="UrlMembershipCondition"
version="1"
Url="$AppDirUrl$/_app_bin/*"
/>
</CodeGroup>
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="FullTrust">
<IMembershipCondition
class="UrlMembershipCondition"
version="1"
Url="$AppDirUrl$/_app_bin/*"
/>
</CodeGroup>
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="SPRestricted">
<IMembershipCondition
class="UrlMembershipCondition"
version="1"
Url="$AppDirUrl$/*"
/>
</CodeGroup>
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="FullTrust">
<IMembershipCondition
class="UrlMembershipCondition"
version="1"
Url="$CodeGen$/*"
/>
</CodeGroup>
<CodeGroup class="UnionCodeGroup" version="1" PermissionSetName="Nothing">
<IMembershipCondition
class="ZoneMembershipCondition"
version="1"
Zone="MyComputer" />
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="FullTrust"
Name="Microsoft_Strong_Name"
Description="This code group grants code signed with the Microsoft strong name full trust. ">
<IMembershipCondition
class="StrongNameMembershipCondition"
version="1"
PublicKeyBlob="00240000048000009400000006020000002 4000052534131000400000100010007D1FA57C4AED9F0A32E8 4AA0FAEFD0DE9E8FD6AEC8F87FB03766C834C99921EB23BE79 AD9D5DCC1DD9AD236132102900B723CF980957FC4E177108FC 607774F29E8320E92EA05ECE4E821C0A5EFE8F1645C4C0C93C 1AB99285D622CAA652C1DFAD63D745D6F2DE5F17E5EAF0FC49 63D261C8A12436518206DC093344D5AD293"
/>
</CodeGroup>
<CodeGroup
class="UnionCodeGroup"
version="1"
PermissionSetName="FullTrust"
Name="Ecma_Strong_Name"
Description="This code group grants code signed with the ECMA strong name full trust. ">
<IMembershipCondition
class="StrongNameMembershipCondition"
version="1"
PublicKeyBlob="00000000000000000400000000000000"
/>
</CodeGroup>
</CodeGroup>
</CodeGroup>
</PolicyLevel>
</policy>
</security>
</mscorlib>
</configuration>
still my problem is not solved .it is giving same exception.can any one help me where i am wrong in my policy file.
i deployed my DLL in bin folder.
Regards
Sithender
Security Exception.Help needed
