CODEWITHSUNDEEP
c#winformsdatagridview
kami
kami

Reputation: 274

How to compare a Cell with DataGridViewCell CellType

I have a DataGridView where the cells in a column can have differnt cell types.

For example the cell in row 1 has the cell type DataGridViewTextBoxCell. And the cell in row 2 has the cell type DataGridViewImageCell.

I have created a method that does something if the mouse is over a cell of that column:

private void DataTableCellMouseEnter(object sender, DataGridViewCellEventArgs e)
{
    if
    (
        e.RowIndex >= 0 // If the current row is not the header.
        && e.ColumnIndex == dataGridViewDMSSettings.Columns["Example"].Index // And if the current column is the example column.
    )
    {
        // Something happing here.
    }
}

Now I want to add a comparsion of the cell type to run the code only if the cell type is DataGridViewImageCell.

I have tried to add...

&& dataGridViewDMSSettings.Rows[e.RowIndex].Cells["Example"].GetType() == DataGridViewImageCell

... but I'm getting the IntelliSense message "DataGridViewImageCell is a type and invalid in the current context."

Does someone have a solution for this?

Upvotes: 1

Views: 958

Answers (1)

JLRishe
JLRishe

Reputation: 101738

As indicated in the comments, you need to use the typeof() operator to use a type as a value. You can't use a type name as a value without that.

dataGridViewDMSSettings.Rows[e.RowIndex].Cells["Example"].GetType() == 
    typeof(DataGridViewImageCell)

However, there is a much better way to check whether a value is of a particular type, and that is the is operator:

dataGridViewDMSSettings.Rows[e.RowIndex].Cells["Example"].GetType() is 
    DataGridViewImageCell

An important difference here is that is respects inheritance relationships, while == plus typeof() requires exact type equivalence.

Upvotes: 2

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