C# Converting Int To Int64?

Oct 29, 2010

we are in the process of upgrading our crappy cms system and the new assemblies have changed from int to int64. I'm running into a problem when trying to build now. here is one excerpt of code that is causing a problem.

IDictionary<int, string> aliases
= new UrlAliasApi().GetUrlAliasesByType(
Company.DataLayer.Enumeration.UrlAliasType.Recipe);
foreach (ContentBase recipe in mergedResultset)
{
// if alias exists, overwrite quicklink!
string alias;
if (aliases.TryGetValue(recipe.Id, out alias))
{
recipe.QuickLink = alias;
}
}

The error is

Error 323 The best overloaded method match for 'System.Collections.Generic.IDictionary.TryGetValue(int, out string)' has some invalid arguments Its referring to recipe.Id which is an Int64 value.

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Similar Messages:

Bit Shift Operator Behavior For Int64?

Feb 12, 2011

I need to use a field of 64 bits (32 is not long enough). I used the following page to see the effects of bit shifting when using the Int64 data type:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ Page Language="VB" WarningLevel="1" Explicit="true" Strict="true" %>

<script language="VB" runat="server">
private sub do_test()
dim bit_no as Integer
dim info as Int64


' Show min value as binary ...
info = Int64.MinValue
response.write( String.Format( "Int64.MinValue = {0}<br>", info ) )
response.write( String.Format( "Int64.MinValue (binary) = {0}<br>", Convert.ToString( info, 2 ) ) )
response.write( "<br>" )

' Show max value as binary ...
info = Int64.MaxValue
response.write( String.Format( "Int64.MaxValue = {0}<br>", info ) )
response.write( String.Format( "Int64.MaxValue (binary) = {0}<br>", Convert.ToString( info, 2 ) ) )
response.write( "<br>" )


response.write( "Bit Shift Test" )
response.write( "<br>" )

for bit_no = 0 to 63
info = 1 << bit_no
response.write( String.Format( "1 << {0} = {1}<br>", bit_no, info ) )
next

end sub
</script>
<html>
<body>
<% do_test() %>
</body>
</html>

The output of the page is:

Int64.MinValue = -9223372036854775808
Int64.MinValue (binary) = 1000000000000000000000000000000000000000000000000000000000000000
Int64.MaxValue = 9223372036854775807
Int64.MaxValue (binary) = 111111111111111111111111111111111111111111111111111111111111111
Bit Shift Test
1 << 0 = 1
1 << 1 = 2
1 << 2 = 4
1 << 3 = 8
1 << 4 = 16
1 << 5 = 32
1 << 6 = 64
1 << 7 = 128
1 << 8 = 256
1 << 9 = 512
1 << 10 = 1024
1 << 11 = 2048
1 << 12 = 4096
1 << 13 = 8192
1 << 14 = 16384
1 << 15 = 32768
1 << 16 = 65536
1 << 17 = 131072
1 << 18 = 262144
1 << 19 = 524288
1 << 20 = 1048576
1 << 21 = 2097152
1 << 22 = 4194304
1 << 23 = 8388608
1 << 24 = 16777216
1 << 25 = 33554432
1 << 26 = 67108864
1 << 27 = 134217728
1 << 28 = 268435456
1 << 29 = 536870912
1 << 30 = 1073741824
1 << 31 = -2147483648
1 << 32 = 1
1 << 33 = 2
1 << 34 = 4
1 << 35 = 8
1 << 36 = 16
1 << 37 = 32
1 << 38 = 64
1 << 39 = 128
1 << 40 = 256
1 << 41 = 512
1 << 42 = 1024
1 << 43 = 2048
1 << 44 = 4096
1 << 45 = 8192
1 << 46 = 16384
1 << 47 = 32768
1 << 48 = 65536
1 << 49 = 131072
1 << 50 = 262144
1 << 51 = 524288
1 << 52 = 1048576
1 << 53 = 2097152
1 << 54 = 4194304
1 << 55 = 8388608
1 << 56 = 16777216
1 << 57 = 33554432
1 << 58 = 67108864
1 << 59 = 134217728
1 << 60 = 268435456
1 << 61 = 536870912
1 << 62 = 1073741824
1 << 63 = -2147483648

Obviously, the bit shift operator seems to be wrapping?? !! How can I obtain the result shown below using VB / ASP.Net -- is it even possible???

1 << 0 = 1
1 << 1 = 2
1 << 2 = 4
1 << 3 = 8
1 << 4 = 16
1 << 5 = 32
1 << 6 = 64
1 << 7 = 128
1 << 8 = 256
1 << 9 = 512
1 << 10 = 1024
1 << 11 = 2048
1 << 12 = 4096
1 << 13 = 8192
1 << 14 = 16384
1 << 15 = 32768
1 << 16 = 65536
1 << 17 = 131072
1 << 18 = 262144
1 << 19 = 524288
1 << 20 = 1048576
1 << 21 = 2097152
1 << 22 = 4194304
1 << 23 = 8388608
1 << 24 = 16777216
1 << 25 = 33554432
1 << 26 = 67108864
1 << 27 = 134217728
1 << 28 = 268435456
1 << 29 = 536870912
1 << 30 = 1073741824
1 << 31 = 2147483648
1 << 32 = 4294967296
1 << 33 = 8589934592
1 << 34 = 17179869184
1 << 35 = 34359738368
1 << 36 = 68719476736
1 << 37 = 137438953472
1 << 38 = 274877906944
1 << 39 = 549755813888
1 << 40 = 1099511627776
1 << 41 = 2199023255552
1 << 42 = 4398046511104
1 << 43 = 8796093022208
1 << 44 = 17592186044416
1 << 45 = 35184372088832
1 << 46 = 70368744177664
1 << 47 = 140737488355328
1 << 48 = 281474976710656
1 << 49 = 562949953421312
1 << 50 = 1125899906842620
1 << 51 = 2251799813685250
1 << 52 = 4503599627370500
1 << 53 = 9007199254740990
1 << 54 = 18014398509482000
1 << 55 = 36028797018964000
1 << 56 = 72057594037927900
1 << 57 = 144115188075856000
1 << 58 = 288230376151712000
1 << 59 = 576460752303423000
1 << 60 = 1152921504606850000
1 << 61 = 2305843009213690000
1 << 62 = 4611686018427390000
1 << 63 = 9223372036854780000

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