c # basic discussion

  1. A

    Specific cast is not valid in linq query when compare two tables

    Problem Error display in linq query "specific cast is not valid" at System.Data.DataRowExtensions.UnboxT`1.ValueField(Object value) at System.Data.DataRowExtensions.Field[T](DataRow row, String columnName) LinqQuery give error var query1 = (from x in table1.AsEnumerable()...
    • ahmedsa
    • Thread
    • .net 4.5 ado.net c # basic discussion
    • Replies: 1
    • Forum: LINQ
  2. MediaHub

    Question How call methods from child window of another Form( Not a Child/Parent Window)

    In My Projects i Have 3 Forms: Form1: MDIParent Form2: MDIChild Form3: Normal Form i want to access data and call methods of Form3 from Child Window. I am new to C# can any one solve my problem.
  3. S

    Question Floating point range

    THe float point range is (+,-)1.5e−45 to (+,-)3.4e38. Q1: Does that mean +1.5e−45 to +3.4e38 & -1.5e−45 to -3.4e38, please elaborate ? Q2: If yes to Q1, then zero (infact values b/w -1.5e−45 to +1.5e−45) does not fall in any of range in Q1. How "0" (they) is mentioned in float? Regards
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