我正在尝试以两种不同格式格式化2列
第一列4位数宽度,当用户输入1234时,我需要输出为123.4。
我尝试使用
__dgw.Columns["column"].DefaultCellStyle.Format = "N1";
但输出是1,234.0我不想要逗号,只需要123.4我试过d1等
是否有遮掩栏这样的东西?
我还需要一种方法来创建另一个带有## - ## - ##掩码的列?
提前感谢您的帮助
答案 0 :(得分:1)
如果您打算在将来更频繁地使用此类行为,请考虑以下链接以供参考 - 尤其是最后一个:
如果这是一次性交易,可能会减少以下工作:
this.dataGridView1.Columns[0].DefaultCellStyle.Format = "000.0";
this.dataGridView1.Columns[1].DefaultCellStyle.Format = "00-00-00";
this.dataGridView1.CellFormatting += this.DataGridView1_CellFormatting;
private void DataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
int value = 0;
if (e.Value != null && int.TryParse(e.Value.ToString(), out value))
{
if (e.ColumnIndex == 0)
{
// Must manually move decimal. Setting Format will not do this for you.
e.Value = (decimal)value / 10;
}
else if (e.ColumnIndex == 1)
{
// Format won't affect e.Value of type string.
e.Value = value;
}
}
}
这应该提供所需的确切结果,同时保留基础值。
╔════════════╦═══════════╦═══════════════════╗
║ User Input ║ Displayed ║ Actual Cell Value ║
╠════════════╬═══════════╬═══════════════════╣
║ 1234 ║ 123.4 ║ 1234 ║
║ 123456 ║ 12-34-56 ║ 123456 ║
╚════════════╩═══════════╩═══════════════════╝
这也假设您已将用户分别限制为长度为4和6的数字条目,可以按如下方式进行:
this.dataGridView1.EditingControlShowing += this.DataGridView1_EditingControlShowing;
private void DataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
e.Control.KeyPress -= new KeyPressEventHandler(AllowNumericOnly);
if (dataGridView1.CurrentCell.ColumnIndex == 0 || dataGridView1.CurrentCell.ColumnIndex == 1)
{
TextBox tb = e.Control as TextBox;
if (tb != null)
{
tb.Tag = dataGridView1.CurrentCell.ColumnIndex == 0 ? 4 : 6;
tb.KeyPress += new KeyPressEventHandler(this.AllowNumericOnly);
}
}
}
private void AllowNumericOnly(object sender, KeyPressEventArgs e)
{
var control = sender as Control;
int length = (int)control.Tag;
if (!char.IsControl(e.KeyChar) && (!char.IsDigit(e.KeyChar) || control.Text.Length >= length))
{
e.Handled = true;
}
}