Check for null or empty text and date in C# ASP.NET

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Provide me with the syntax to check for a null or empty text field and date field.

The stored procedure provides the information as follows

check for null or empty date

txt_Resp_time4.Text = SqlCmd.Parameters["@ERESPTIME4"].Value.ToString();

check for null or empty text

txt_Response1.Text = SqlCmd.Parameters["@ERESPONSE1"].Value.ToString();

New to C#

Thanks

What I have tried:

Checked for examples on the net .

The examples are for strings declared on the fly

Posted 28-Sep-17 2:44am

Member 12770648

Updated 28-Sep-17 19:36pm

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an0ther1 · Answer 1 · 2017-09-28T15:15:00

You need to check if the parameter value has been set - null or is a Database NULL. The following can be used on pretty much any database field

C#

if(SqlCmd.Parameters["@ERESPTIME4"].Value == null)
{
    // the value has not been set - not initialised
}
else if(Convert.IsDBNull(SqlCmd.Parameters["@ERESPTIME4"].Value))
{
    // the database contains a null value
}
else
{
    // The value is not null
}

connectwithpandey · Answer 2 · 2017-09-28T19:36:00

Solution 2

string name=SqlCmd.Parameters["@ERESPTIME4"].Value;
If(string.IsNullOrEmpty(name)==ture)
{
// code when result is null or empty
}
else
{
// when not null or empty
}

Posted 28-Sep-17 19:36pm

connectwithpandey