Setting a checkbox's state according to column in gridview

Question

I was just wondering how to either tick or untick a check box according to the value True or False in a GridView . Similar to writing the value in a TextBox

textBox1.Text = dataGridView1.SelectedRows[0].Cells[0].Value.ToString();

but for

checkBox1.Text = dataGridView1.SelectedRows[0].Cells[0].Value.ToString();

if True = Tick , if False = Untick

Answer 1

checkBox1.Checked = true;

or

checkBox1.Checked = false;

Full code would be something like:

if (dataGridView1.SelectedRows[0].Cells[0].Value.ToString() == "TRUE")
{
    checkBox1.Checked = true;
} 
else if(dataGridView1.SelectedRows[0].Cells[0].Value.ToString() == "FALSE")
{
    checkBox1.Checked = false;
}

You can't do the code you wrote because the data you pulled from the data grid view is a string and .Checked requires a boolean.

Answer 2

You need to convert the result to boolean. In Gridview.CellValueChangedEvent add code

checkBox1.Checked = (dataGridView1.SelectedRows[0].Cells[0].Value.ToString().ToUpper() == "TRUE");

Answer 3

bool isChecked;
bool.TryParse(dataGridView1.SelectedRows[0].Cells[0].Value.ToString(), out isChecked);
checkBox1.Checked = isChecked;

This means if your string ever changes to "True" or "true" it will still be able to Parse it as a boolean instead of just doing a string check against "TRUE" which could easily break futher down the line.