An object of a type convertible to 'bool' is required

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3.00/5 (1 vote)

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C#

public bool  IsCellOrRowHeader(int x, int y)
       {
           try
           {
               DataGridViewHitTestType dgt = dgv.HitTest(x, y).Type;
               return (dgt == DataGridViewHitTestType.Cell ||
                          dgt == DataGridViewHitTestType.RowHeader);
           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.Message, "Limit Viewer");
               writeErrorlog("Limit Viewer ( IsCellOrRowHeader)", ex.Message, ex.StackTrace);
               return;//An object of a type convertible to 'bool' is required
           }
       }

Posted 31-May-10 1:02am

raj641

Updated 31-May-10 1:09am

PSK_

v2

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2 solutions

Solution 2

ankitparekh56 wrote:
public bool IsCellOrRowHeader(int x, int y)

Your method signature states that the return type is a Boolean value.

ankitparekh56 wrote:
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Limit Viewer");
writeErrorlog("Limit Viewer ( IsCellOrRowHeader)", ex.Message, ex.StackTrace);
~~return;~~//An object of a type convertible to 'bool' is required
// set as return = false;
}

You are not returning a boolean value in case of exception. Just set it to true or false. Since the signature states, it has to be boolean, you have to set the return type as boolean even though if there is an exception.

Posted 31-May-10 1:13am

Sandeep Mewara

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**PSK_** · Accepted Answer · 2010-05-31T01:12:00

Your code should be as following.

public bool IsCellOrRowHeader(int x, int y)
        {
            try
            {
                DataGridViewHitTestType dgt = dgv.HitTest(x, y).Type;
                return (dgt == DataGridViewHitTestType.Cell ||
                           dgt == DataGridViewHitTestType.RowHeader);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Limit Viewer");
                writeErrorlog("Limit Viewer ( IsCellOrRowHeader)", ex.Message, ex.StackTrace);
                return false;//
            }
        }

Your method return type is bool so all the code path should return a boolean value. In this case your catch block is returning void. So change the return; to return false;