datarow

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Specified cast is not valid when using casting

I\'m getting the following error when trying to get the sum in this Linq query: InvalidCastException was unhandled. Specified cast is not valid.[详细]

2023-03-25 11:30 分类：问答
How to use Linq to select information from a collection into another concrete class I made?

I have the following class: public class EntityJESummary { public int JEGroupingId { get; set; } public int PartnershipId { get; set; }[详细]

2023-03-25 04:31 分类：问答
How to modify the List view column?

I have list viewthe data will be displayed in list view from data table like this i have done but i have problem at datarow 6[详细]

2023-03-24 20:22 分类：问答
Unable to change DataRow value

I want to change a Datarow value. I want to change DT2[0].ItemArray[3] I tried this code, but it didn\'t work.[详细]

2023-03-23 20:27 分类：问答
How to find max value in a column in a datarow[] ?

I have a simple problem but I just don\'t understand any of the examples I find here or in MSDN. (I\'m still new to C# and all the datasets functions).[详细]

2023-03-23 20:23 分类：问答
Checking data with commas in a DataTable

I apologize for this newbie question, but I\'m looking for a simple solution. I want to write a function that will return a datatable.[详细]

2023-03-23 17:04 分类：问答
Skip a row in a for each rowset loop in c#

I am looping through a dataset for each data row 开发者_StackOverflow foreach (DataRow DRow in ds.Tables[0].Rows)[详细]

2023-03-23 12:22 分类：问答
Problem with ADO.NET UPDATE code

Could somebody take a quick peek at my ado.net code?I am trying to update the row from a dataset, but it just isn\'t working.I am missing some elemental piece of the code, and it is just eluding me.I[详细]

2023-03-22 00:42 分类：问答
Recursive call to generic function with DataRow parameter - MakeGenericMethod Fails

the question is: if i have MyConvertDataRowToEntity(DataRow row ) and I call in with T object from type Parent and inside I call the same function with desendant type Child how should I pass the Data[详细]

2023-03-21 03:22 分类：问答
Trying to get the data from database and load it into datatable got exception

I am trying to get the database values and binding to data table by using the following query sql = @\"SELECT member_Id, 30*memberToMship_ChargePerPeriod/ DateDiff(memberToMship_EndDate,[详细]

2023-03-19 10:14 分类：问答