CODEWITHSUNDEEP
c#.netwinformsdatagridview
Ivan
Ivan

Reputation: 5250

Error message "Unable to cast object of type"

I have datagridview and three textbox. When grid event SelectionChanged is caused i get data from grid and write in properties. The problem arises when you do not click on the column has the value. 

 private void _artistGridSelectionChanged(object sender, EventArgs e)
{  
    int rowIndex = ArtistListGrid.CurrentCell.RowIndex;
    int cellIndex = ArtistListGrid.CurrentCell.ColumnIndex;

    this.ID = ((DataRowView)BSource.Current).Row.Field<Int32>("ID");
    this.Name = ((DataRowView)BSource.Current).Row.Field<string>("Firstname");
    this.Lastname = ((DataRowView)BSource.Current).Row.Field<string>("Lastname");
    this.Nickname = ((DataRowView)BSource.Current).Row.Field<string>("Nickname");
}

How to fix this:

enter image description here

Text from the screenshot: Unable to cast object of type 'System.Windows.Forms.DataGridView' to type 'System.Windows.Forms.DataRowView'.

Upvotes: 0

Views: 3046

Answers (1)

Tom
Tom

Reputation: 8180

see the is operator: https://msdn.microsoft.com/en-us/library/scekt9xw.aspx

Check if it is a DataRowView:

if(BSource.Current is DataRowView)
{
  //...do your cast here

Alternatively, you may use the as operator:

https://msdn.microsoft.com/en-us/library/cscsdfbt.aspx

Upvotes: 1

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