C#

keefb wrote:

The design in the OP needs refactoring [...] unless there is a specific reason for dealing with strings specifically.

Clive D. Pottinger wrote:

The first ctor (MyClass(string initStr)) is used when the initStr holds a formula that needs to be parsed and evaluated to get the value

keefb wrote:

If I understand you correctly, by passing the formula as a string will require the current class to be responsible for performing the parsing as well as whatever this class is meant to do with the result, this is probably bad object encapsulation.

keefb wrote:

...unless you are parsing text entries from a user or some other source (e.g. text input from a UI or file), writing formulas in strings and then evaluating them is bad design...

DataTable dataTable = new DataTable("MyTable");
dataTable.Columns.Add("Column1");

DataRow dataRow = dataTable.NewRow();
dataRow["Column1"] = "0";
dataTable.Rows.Add(dataRow);

DataRow[] foundRows = dataTable.Select("Column1 = 0");
Trace.Write(foundRows); // <- Count = 1

dt.Select("Status =1");

dataGridView1.DataSource = dtSelect("Status =1");

datagrid.DataSource = bindingSource1;
bindingsource1.DataSource = dt;

Member 4388360 wrote:

Please send me immediately.

Member 4388360 wrote:

Please send me immediately

muhammad_umair wrote:

Does anyone know the solution to overcome this problem..

public class MultiThreadingClass
{
    public MultiThreadingClass()
    {
    }

    private object m_objSync = new object();
    private int m_nValueA = 0; 
    private int m_szText = string.Empty;

    public SyncObj
    {
        get 
        { 
            return m_objSync;
        }
    }

    public Value
    {
        get 
        {
            lock(objSync)
            {
                return m_nValue;
            }
        }
        set
        {
            lock(objSync)
            {
                m_nValue = value;
            }
        }
    }

    public Text
    {
        get 
        {
            lock(objSync)
            {
                return m_szText;
            }
        }
        set
        {
            lock(objSync)
            {
                m_szText = value;
            }
        }
    }
}