我的服务器上的数据采用 smalldatetime
的形式,但是当我将此数据返回到我的应用程序时,它会以 string
的形式返回给我。发生这种情况的原因有多种,但不适用于此问题。
我想做的是,当这些数据填充到我的 DataGridView 中时,我需要将其格式化为 datetime
,其中只有日期,没有时间,格式为“mm/dd/” yyyy
'。我已尝试以下操作,但数据仍采用“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属性或设置它 in designer
或
dataGridView1.Columns[0].DefaultCellStyle.Format = "MM'/'dd'/'yyyy";
或
您可以设置您想要的格式:
dataGridViewCellStyle.Format = "MM/dd/yyyy";
this.date.DefaultCellStyle = dataGridViewCellStyle;
// date being a System.Windows.Forms.DataGridViewTextBoxColumn
你可以这样做......
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;
}
}
}
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关于c# - 在 DataGridView 中将字符串转换为日期时间,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7881085/