how can initialize array datarow

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hi to all
i want to intialize data row array but i cant
any help will be usefull
thanks in advance
my code

C#

	DataRow[] operationsOnAbcenceDataRow;
			if (rowType == (int)RowType.Absence)
			{
				if (!hasNearStartPermission && !hasNearEndPermission)
					operationsOnAbcenceDataRow = operationOnAbsenceItems.Select(" ID <>  " + (int)OperationOnAbsenceType.ExtendNearStartPermission + "  and ID <> " + (int)OperationOnAbsenceType.ExtendNearStartPermission);
				else if (!hasNearStartPermission && hasNearEndPermission)
					operationsOnAbcenceDataRow = operationOnAbsenceItems.Select(" ID <>  " + (int)OperationOnAbsenceType.ExtendNearStartPermission);
				else if (hasNearStartPermission && !hasNearEndPermission)
					operationsOnAbcenceDataRow = operationOnAbsenceItems.Select(" ID <>  " + (int)OperationOnAbsenceType.ExtendNearEndPermission);
			
			}

if (operationsOnAbcenceDataRow.Length != 0)
{
operationOnAbsenceItems.Clear();
foreach (DataRow row in operationsOnAbcenceDataRow)
 operationOnAbsenceItems.ImportRow(row);
}

my problem is this lines ,because operationsOnAbcenceDataRow dont initioalize i cant use
operationsOnAbcenceDataRow.Length

C#

if (operationsOnAbcenceDataRow.Length != 0)
{
operationOnAbsenceItems.Clear();
foreach (DataRow row in operationsOnAbcenceDataRow)
 operationOnAbsenceItems.ImportRow(row);
}

Posted 31-May-13 8:24am

mhd.sbt

Updated 31-May-13 8:31am

v3

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Matt T Heffron · Answer 1 · 2013-05-31T08:49:00

Solution 1

So what's wrong with:

C#

if (operationsOnAbcenceDataRow != null && operationsOnAbcenceDataRow.Length != 0)
{
  operationOnAbsenceItems.Clear();
  foreach (DataRow row in operationsOnAbcenceDataRow)
    operationOnAbsenceItems.ImportRow(row);
}

Posted 31-May-13 8:49am

Matt T Heffron

Comments

mhd.sbt 31-May-13 15:07pm

ok by this code i have this error
use unassign variable ...

Matt T Heffron 31-May-13 16:24pm

So, initialize it to null:
DataRow[] operationsOnAbcenceDataRow = null;