CODEWITHSUNDEEP
c#datagridviewparameter-passing
ThEpRoGrAmMiNgNoOb
ThEpRoGrAmMiNgNoOb

Reputation: 1304

Passing Value of DataGridView from One form to a Class

I am having difficulties in passing the values of a DataGridView to a class. I want to read all contents of the datagridview of a form using a separate class. I tried the following (suppose dgv1 is an existing dataGridView with contents):

public void buttonClick()
{
    SeparateClass separateClass = new SeparateClass();
    separateClass.getDataGridViewDetails(dgv1);
}

and the following code receives dgv1 in a separate class:

public void getDataGridViewDetails(DataGridView dgv1)
{
     string celValue = dgv1.Rows[0].Cells[0].Value.ToString();
}

but returns a null value, which means I have failed to pass the value of the existing DataGridView to another class. Can you tell me what is the correct code to pass the value of a DataGridView to another class. Thanks a lot. . .

Upvotes: 1

Views: 3982

Answers (1)

Magic Mick
Magic Mick

Reputation: 1533

In cases like this I would access the DataGridView from my Class using the following..

In your form you would have..

public void buttonClick()
{
   SeparateClass separateClass = new SeparateClass();
   seperateClass.formObj = this;
   seperateClass.getDataGridViewDetails();
}

In your class you would have..

public Form1 formObj;

public void getDataGridViewDetails()
{
   string celValue = formObj.dataGridView1.Rows[0].Cells[0].Value.ToString();
}

Also, as mentioned in the comments above, you would need to set the DataGridView Modifier to Public

Upvotes: 2

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