Question

当我更新网格中的一行时，我有一个带有书籍详细信息的网格，因此无法转换类型为＃System; Web.UI.WebControls.TextBox＆＃39;键入＆＃39; System.IConvertible＆＃39;错误。请帮我解决这个错误。价格列是十进制数据类型。

protected void grdBookDetails_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    BookDetailsBEL.BookId = Convert.ToInt32(grdBookDetails.DataKeys[e.RowIndex].Value);
    BookDetailsBEL.BookName = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditBookName"))).ToString();
    BookDetailsBEL.Author = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditAuthor"))).ToString();
    BookDetailsBEL.Publisher = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditPublisher"))).ToString();            
    BookDetailsBEL.Price = Convert.ToDecimal((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditPrice")));
    e.Cancel = true;
    grdBookDetails.EditIndex = -1;
    GetBookDetails();            
}

Answer 1

您必须使用.Text属性

protected void grdBookDetails_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            BookDetailsBEL.BookId = Convert.ToInt32(grdBookDetails.DataKeys[e.RowIndex].Value);
            BookDetailsBEL.BookName = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditBookName"))).Text.ToString();
            BookDetailsBEL.Author = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditAuthor"))).Text.ToString();
            BookDetailsBEL.Publisher = ((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditPublisher"))).Text.ToString();
            BookDetailsBEL.Price = Convert.ToDecimal(((TextBox)(grdBookDetails.Rows[e.RowIndex].FindControl("txtEditPrice"))).Text.ToString());
            e.Cancel = true;
            grdBookDetails.EditIndex = -1;
            GetBookDetails();
        }

无法转换类型为＃System; Web.UI.WebControls.TextBox＆＃39;的对象。键入＆＃39; System.IConvertible＆＃39;

1 个答案: