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I have a database field called "PIECE" which datatype is NUMERIC(11,0),
I must convert this field to a long-datatype.
This without any luck or succes, I'll keep getting the same error:
Wrong conversion...
I tried the next things:
(long)PIECE
long.Parse(PIECE.ToString().Trim())
But I'm still having the wrong conversion message,
is here someone who can help me?
This will do it:
var result = Convert.ToInt64(PIECE);
https://msdn.microsoft.com/en-us/library/0zahhahw(v=vs.110).aspx
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I have a datetime field in sql table.
From c#, I also have datetime type but it is supposed to store only time so I am sending it 01/01/0001 09:49:44.
But while storing it in database it throws error:
that system.dattime cannot be converted to Timesapn.
Use the TimeOfDay property of the DateTime object
DateTime input = DateTime.Parse("01/01/0001 09:49:44");
TimeSpan result = input.TimeOfDay;
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I'm looking for an answer to the following:
Desired behaviour
Round the mathematical constant pi to 2 or 4 decimals.
Current code
I have tried the following:
Double piRounded;
piRounded = Math.Round.PI(4);
piRounded = Math.Round.PI(2);
Current result
This results in the following error:
'System.Math.Round(double)' is a 'method', which is not valid in the given context
Math.Round in your code is being specified as a property, not a method invocation.
Place your parameters in the round function like Math.Round(...) - You will want to pass in the PI constant.
Math.Round(Math.PI, 4) (as stated in comments).
Use:
Math.Round(Math.PI, 2);
and
Math.Round(Math.PI, 4);
respectively
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How to clear the object reference is required error?
the script which i am using is coming up with the error that an object reference is required though i am trying to eliminating it by making it static but it isn't working out. can anyone please help me out?
do anyswer quickly because i have to finish up this project and move on.
the image shows my script which is having the error object reference is required. can anyone help me clear that error please?
As indicated error message, UDPCom.sendLTDimples is non static function. So you will have to create a new object of class UDPCom and then using that object call the function.
UDPCom obj = new UDPCom();
Obj.sendLTDimples();
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Found this csv parser: https://github.com/bytefish/TinyCsvParser
Following his example but I even added one int property.
By setting a negative value to that int, it gave me one unvalid row.
Couldn't find any solution for this simple? problem.
The type converter was using the wrong NumberStyle as default. I have fixed the problem and added a Test case to the project: https://github.com/bytefish/TinyCsvParser/issues/2.
You could also instantiate a custom converter with the right NumberStyle (see WithCustomConverter, Example), but I suggest simply updating to the latest version (0.6), which is also updated in NuGet.
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I am using Visual Studio 2010/Frawework 3.5. if my listview is vacuum, I receive this error:
Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception
on this line:
<polirisListView:PolirisGridViewColumn Width="*" />
What am I doing wrong?
If PolirisGridViewColumn inherits from GridViewColumn check the documentation for GridViewColumnWidth. The value is expected to be a double or the keyword "Auto"
https://msdn.microsoft.com/en-us/library/ms592684(v=vs.110).aspx
I think you're getting width parameter mixed with DataGridColumn Width which is of type DataGridLength
https://msdn.microsoft.com/en-us/library/system.windows.controls.datagridlength(v=vs.110).aspx