title: returning empty cell if minimum of a range contains all empty values
body: <p>I have a formula which find minimum date values from AF4 to next empty cell in A starting from A4.</p>
  
  <pre><code>=MIN(INDIRECT(ADDRESS(ROW(AF4);COLUMN(AF4))&amp;":af"&amp; (MIN(IF(A4:A108="";ROW(A4:A108))))))
  </code></pre>
  
  <p>I want my formula to have if else function and if there is a value in AF4 to next empty cell in A, formula should return minimum as it does above.</p>
  
  <p>If all the values are empty then i would like that the formula returns empty which is still in constraints of the formula above and not a standard date which is 00.01.1900. So basically i need an else function to this formula which returns empty cell.</p>
  
  <p>How can i do this?</p>
  
  <p><strong>EDIT</strong>:I want my formula to work if there are any date values between the range in my formula. If there are no date values in the range, then it should show the empty string. It should be then something like =If myformula(which searches min date in range) else if there is no date in range then it should show empty string " " </p>