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  1. PO
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    <p>This is right to left execution, so need to use proper parathesis to execute expression</p> <pre><code> // 2+(100/5)+10 = 32 //((2.5+10)/5)+2.5 = 5 // (2.5+10)/5+2.5 = 1.6666 public static double Evaluate(String expr) { Stack&lt;String&gt; stack = new Stack&lt;String&gt;(); string value = ""; for (int i = 0; i &lt; expr.Length; i++) { String s = expr.Substring(i, 1); char chr = s.ToCharArray()[0]; if (!char.IsDigit(chr) &amp;&amp; chr != '.' &amp;&amp; value != "") { stack.Push(value); value = ""; } if (s.Equals("(")) { string innerExp = ""; i++; //Fetch Next Character int bracketCount=0; for (; i &lt; expr.Length; i++) { s = expr.Substring(i, 1); if (s.Equals("(")) bracketCount++; if (s.Equals(")")) if (bracketCount == 0) break; else bracketCount--; innerExp += s; } stack.Push(Evaluate(innerExp).ToString()); } else if (s.Equals("+")) stack.Push(s); else if (s.Equals("-")) stack.Push(s); else if (s.Equals("*")) stack.Push(s); else if (s.Equals("/")) stack.Push(s); else if (s.Equals("sqrt")) stack.Push(s); else if (s.Equals(")")) { } else if (char.IsDigit(chr) || chr == '.') { value += s; if (value.Split('.').Length &gt; 2) throw new Exception("Invalid decimal."); if (i == (expr.Length - 1)) stack.Push(value); } else throw new Exception("Invalid character."); } double result = 0; while (stack.Count &gt;= 3) { double right = Convert.ToDouble(stack.Pop()); string op = stack.Pop(); double left = Convert.ToDouble(stack.Pop()); if (op == "+") result = left + right; else if (op == "+") result = left + right; else if (op == "-") result = left - right; else if (op == "*") result = left * right; else if (op == "/") result = left / right; stack.Push(result.ToString()); } return Convert.ToDouble(stack.Pop()); } </code></pre>
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    1. POEvaluating string "3*(4+2)" yield int 18
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    1. USRajesh Jinaga
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      1. VTUpMod
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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