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why not take the starttime field, which is datetime, and create a new datetime with the hour and minute?<br />
<br />

<pre><code id="code-20-36962661-1">DateTime starttime = (DateTime)dtSAC.Rows[0][&quot;starttime&quot;];
int hours = int.Parse(_tbStartTimeHour.Text );
int minutes = int.Parse(_tbStartTimeMinute.Text);
DateTime r = new Datetime(starttime.Year, starttime.Month, starttime.Day).AddHours(hours).AddMinutes(minutes);</code></pre>
<br />
untested code, might have typos ...
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why not take the starttime field, which is datetime, and create a new datetime with the hour and minute?



DateTime starttime = (DateTime)dtSAC.Rows[0]["starttime"];
int hours = int.Parse(_tbStartTimeHour.Text );
int minutes = int.Parse(_tbStartTimeMinute.Text);
DateTime r = new Datetime(starttime.Year, starttime.Month, starttime.Day).AddHours(hours).AddMinutes(minutes);


untested code, might have typos ...

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Oops, It looks like angel solution :p
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yup, except that I wrote, by practice, in several lines of code.<br />
this is because I want to be able to know on which assignment the error actually occurs, if any.
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yup, except that I wrote, by practice, in several lines of code.
this is because I want to be able to know on which assignment the error actually occurs, if any.

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<div class="content wysiwyg-content">
trying to insert datettime into db from asp.net code behind with same date, but different time like --&gt;<br />
<br />
Convert.ToDateTime(dtSAC.R<wbr />ows[0][&quot;st<wbr />arttime&quot;].<wbr />ToString(&quot;<wbr />yyyy-MM-dd<wbr />&quot; + _tbStartTimeHour.Text + &quot;:&quot; + _tbStartTimeMinute.Text + &quot;:ss&quot;))<br />
<br />
but its giving error , 'No overload for method 'ToString' takes 1 arguments
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trying to insert datettime into db from asp.net code behind with same date, but different time like -->

Convert.ToDateTime(dtSAC.Rows[0]["starttime"].ToString("yyyy-MM-dd" + _tbStartTimeHour.Text + ":" + _tbStartTimeMinute.Text + ":ss"))

but its giving error , 'No overload for method 'ToString' takes 1 arguments

Insert DateTime with (&quot;yyyy-MM-dd &quot; + _tbStartTime.Text + &quot;:&quot; + _tbStartMinute.Text + &quot;:ss&quot;;

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Insert DateTime with (&quot;yyyy-MM-dd &quot; + _tbStartTime.Text + &quot;:&quot; + _tbStartMinute.Text + &quot;:ss&quot;;

Insert DateTime with ("yyyy-MM-dd " + _tbStartTime.Text + ":" + _tbStartMinute.Text + ":ss";