How to check columns are null in a datatable when selecting only particular columns from it?

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Hi,
I have one dataset with multiple datatables.I am selecting particular datatable from the dataset conditionally by passing table name.I need to select particular columns from that datatable.I am using below code:

dtSelectedColumns = dtSelectedTable.DefaultView.ToTable(true, arrayFields);

Here arrayFields is the string array and this is working fine.But the problem is that,for some situations ,some columns are not there in that datatable.In such scenario,I am getting error like this:
"

C#

Column "column Name" does not belong to underlying table "tableName";.

So how can i check columns are present or not in datatable when selecting particular columns only.Awaiting your fast response
Regards
Aradhana

What I have tried:

I didnt get any proper solution.I tried with linq.But did nt work.

Posted 1-Mar-16 20:38pm

Aradhana Krishna

Updated 1-Mar-16 22:03pm

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VR Karthikeyan · Answer 1 · 2016-03-01T22:03:00

Hi, just refer this code,

C#

public bool CheckColumns(DataTable objTable, string[] columns)
{
    bool IsAllCoumnsExists = false;

    List<string> ColumnList = new List<string>();
    foreach (DataColumn objColumn in objTable.Columns)
    {
        ColumnList.Add(objColumn.ColumnName);
    }

    foreach (string column in columns)
    {
        bool temp = ColumnList.Contains(column);
        if (temp == true)
        {
            IsAllCoumnsExists = true;
        }
        else if (temp == false)
        {
            IsAllCoumnsExists = false;
            break;
        }
    }

    return IsAllCoumnsExists;
}

This code checks all whether all columns are exists in datatable or not.