Having problem to get the focus right

Question

1.00/5 (1 vote)

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Program not working

There are text boxes which have to be disabled and enabled based on the incoming fields

Having problem with the following codes

if (string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE2"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE4"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE3"].Value.ToString()) ||
!string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE1"].Value.ToString())) ;
{
txt_Resp_time2.Text = SqlCmd.Parameters["@ERESPTIME2"].Value.ToString();
txt_Response2.Text = SqlCmd.Parameters["@ERESPONSE2"].Value.ToString();
txt_Resp_time2.Enabled= true;
txt_Response2.Enabled = true;
txt_Response2.Focus();

txt_Resp_time4.Enabled = false;
txt_Response4.Enabled = false;
txt_Resp_time3.Enabled = false;
txt_Response3.Enabled = false;
txt_Resp_time1.Enabled = false;
txt_Response1.Enabled = false;
}

if (string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE1"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE4"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE3"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE2"].Value.ToString())) ;
{
txt_Resp_time1.Text = SqlCmd.Parameters["@ERESPTIME1"].Value.ToString();
txt_Response1.Text = SqlCmd.Parameters["@ERESPONSE1"].Value.ToString();
txt_Resp_time1.Enabled= true;
txt_Response1.Enabled = true;
txt_Response1.Focus();

txt_Resp_time4.Enabled = false;
txt_Response4.Enabled = false;
txt_Resp_time3.Enabled = false;
txt_Response3.Enabled = false;
txt_Resp_time2.Enabled = false;
txt_Response2.Enabled = false;
}

What I have tried:

This are codes which I have tried and not been able to solve

Posted 9-Oct-17 5:17am

Member 12770648

Updated 9-Oct-17 14:07pm

OriginalGriff

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Richard MacCutchan 9-Oct-17 13:21pm

Solve what?

1 solution

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Steve44 · Answer 1 · 2017-10-09T14:07:00

Please describe a few more details about your question:
Is this your actual code copy-pasted from your program?
What are the value of your ERESPONSE1-4 parameters?
What behavior do you see?
What behavior do you expect?
Is only the focus a problem or also the enabled/disabled controls?

Without this information it is difficult to propose a solution as we are not mind readers.

However, if this is your program, I see a problem:

if (string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE1"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE4"].Value.ToString()) || 
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE3"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE2"].Value.ToString())) ; 
{

The if contains 4 lines of conditions that are followed by a semicolon ";"
This completes your if with an empty body and the following block is executed regardless of the evaluation of the if conditions.
This is equivalent to this:

if (string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE1"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE4"].Value.ToString()) || 
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE3"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE2"].Value.ToString()))
{
}

{

So if your behavior is always the 1 fields are enabled and all others are disabled, try removing the ";" immediately after the if and see, if this solves your problem.

if (string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE1"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE4"].Value.ToString()) || 
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE3"].Value.ToString()) ||
string.IsNullOrEmpty(SqlCmd.Parameters["@ERESPONSE2"].Value.ToString()))
{