Go to Statements

Zeynep

How should I use goto statement if I use if & for statements? Code seems like as below.

private void ... (object sender, RoutedEventArgs e) // a buttons click event

{

if(a condition)

{

... Adding DataSet Table command
... Open & Select txt file command
...
...

 if (stallclick >0)

  {

   goto Analysis;

  }

...
...
...
...
 if(an other condition )

  {

   ...... some code lines which is about the selected txt file as file name items coordinate system data(xyz) and save this data an ARRAY list

   Analysis:

   for( loop )

   {

          ...... some code lines which took data above and can not be a function of something
          ...... 
          ...... if-for statements

   }

  }

 }

}

3 Replies

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Gajendra Jangid4y ago
hi,

use goto statement like this example.
string Fruit = "Apple";
switch (Fruit)
{
    case "Banana":
        MessageBox.Show(Fruit + " is the delecious fruit");
        break;
    case "Chair":
        MessageBox.Show(Fruit + " is the delecious fruit");
        break;
    case "Apple":
        goto case "Banana";
    case "Table":
        goto case "Chair";
    default:
        MessageBox.Show("Select valid option");
        break;
}
+2
Muhammad Imran Ansari4y ago
As per your pseduCode, you are using goto into the second if block which will not run and get the exceptio/error: "No such label 'Analysis' within the scope of the goto statement". Change you code accordingly.
bool otherCondition = true;
if (otherCondition)
    goto Analysis;

Analysis:
if (otherCondition)
{

}
Further you can check with following code:
// Calling
CheckMatrices(matrices, 4);
void CheckMatrices(Dictionary<string, int[][]> matrixLookup, int target)
{
    foreach (var (key, matrix) in matrixLookup)
    {
        for (int row = 0; row < matrix.Length; row++)
        {
            for (int col = 0; col < matrix[row].Length; col++)
            {
                if (matrix[row][col] == target)
                {
                    goto Analysis;
                }
            }
        }
        Console.WriteLine($"Not found {target} in matrix {key}.");
        continue;
    }

    Analysis:
    if (otherCondition)
    {
        //...... some code lines which took data above and can not be a function of something
        //......
        //...... if-for statements
    }
}
+2
Sachin Singh4y ago
What is analysis and what is it's scope, this is how we use goto with label in general
for (int i = 0; i < arr.GetLength(0); ++i)
{
    for (int j = 0; j < arr.GetLength(1); ++j)
    {
        for (int k = 0; k < arr.GetLength(2); ++k)
        {
            if (arr[i, j, k] == 7)
                goto Finish;
            Console.WriteLine("current element is {0}", arr[i, j, k]);
        }
    }
}
Finish: Console.WriteLine("break multiple loops when value is 7");
+2