我有服务器上的数据以smalldatetime的形式出现,但是当我将这些数据返回给我的应用程序时,它以string的形式返回给我。发生这种情况的原因有多种,不适用于此问题。

我想做的是,当此数据填充到DataGridView中时,我需要将其格式化为datetime,且没有日期,时间格式为“ mm/dd/yyyy”。我已经尝试了以下操作,但是数据仍然采用“ mm/dd/yyyy hh:mm”格式:

this.DataGridView.Columns[7].DefaultCellStyle.Format = "d";


如何格式化此列数据?

最佳答案

使用Column.DefaultCellStyle.Format属性或将其设置为in designer

要么

dataGridView1.Columns[0].DefaultCellStyle.Format = "MM'/'dd'/'yyyy";


要么

您可以设置所需的格式:

dataGridViewCellStyle.Format = "MM/dd/yyyy";
this.date.DefaultCellStyle = dataGridViewCellStyle;
// date being a System.Windows.Forms.DataGridViewTextBoxColumn


你可以这样...

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
    // If the column is the Artist column, check the
    // value.
    if (this.dataGridView1.Columns[e.ColumnIndex].Name == "Artist")
    {
        if (e.Value != null)
        {
            // Check for the string "pink" in the cell.
            string stringValue = (string)e.Value;
            stringValue = stringValue.ToLower();
            if ((stringValue.IndexOf("pink") > -1))
            {
                e.CellStyle.BackColor = Color.Pink;
            }

        }
    }
    else if (this.dataGridView1.Columns[e.ColumnIndex].Name == "Release Date")
    {
        ShortFormDateFormat(e);
    }
}

//Even though the date internaly stores the year as YYYY, using formatting, the
//UI can have the format in YY.
private static void ShortFormDateFormat(DataGridViewCellFormattingEventArgs formatting)
{
    if (formatting.Value != null)
    {
        try
        {
            System.Text.StringBuilder dateString = new System.Text.StringBuilder();
            DateTime theDate = DateTime.Parse(formatting.Value.ToString());

            dateString.Append(theDate.Month);
            dateString.Append("/");
            dateString.Append(theDate.Day);
            dateString.Append("/");
            dateString.Append(theDate.Year.ToString().Substring(2));
            formatting.Value = dateString.ToString();
            formatting.FormattingApplied = true;
        }
        catch (FormatException)
        {
            // Set to false in case there are other handlers interested trying to
            // format this DataGridViewCellFormattingEventArgs instance.
            formatting.FormattingApplied = false;
        }
    }
}


您能否通过此链接访问more info

关于c# - 在DataGridView中将字符串转换为DateTime,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/7881085/

10-12 12:37