如何在C#中验证datagridview单元 [英] how to validate datagridview cell in C# a

问题描述

我的datagridview之类的东西..this ...
约会日期
1 1/1/2005星期一
2 7/1/2005星期一
3 14/1/2005星期一
4 21/1/2005星期一
用户可以将日期14/1/2005更改为不少于= 7/1/2005且不得大于=大于21/1/2005
您能帮助我进行验证吗???????

感谢和问候
Lakhan

解决方案

您需要编写验证日期的逻辑，例如.

  void  dataGridView1_CellValidating( object 发​​送者，DataGridViewCellValidatingEventArgs e)
{
DateTime StartDate = " ;
DateTime EndDate = " 
DateTime enetedDate = dataGridView1.Rows [e.RowIndex] .Cells [" ];

如果(enetedDate >  = StartDate&&enetedDate< = EndDate)
{
// 您的逻辑应该在这里.
}
其他
{
 MessageBox.Show(" );
  e.Cancel =  true ;
}
} 

注意: 请先使用DataType转换，然后再使用.因为我还没有实现.

谢谢，
Imdadhusen

尝试以下链接:
如何:在Windows窗体DataGridView单元中托管控件
演练:在Windows窗体DataGridView控件中验证数据
如何:验证Windows窗体DataGridView控件中的数据

<您可以使用RangeValidator控件在其中设置minimumvalue="7/1/2005"和maximumvalue="21/1/2005"
试试
RangeValidator控件 [ ^ ]

my datagridview somethink like ..this.....
sno date day
1 1/1/2005 Monday
2 7/1/2005 Monday
3 14/1/2005 Monday
4 21/1/2005 Monday
user can change date 14/1/2005 to not lessthan= 7/1/2005 and not greater= than 21/1/2005
can u help me what i have to do for this validation???????

thanks and regards
Lakhan

解决方案

Hi,

You need to write a logic for validating Date like.

void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
DateTime StartDate = "7/1/2005";
DateTime EndDate = "21/1/2005"
DateTime enetedDate = dataGridView1.Rows[e.RowIndex].Cells["Date"];

if( enetedDate >=  StartDate &&  enetedDate<= EndDate)
{
//Your logic should be here..
} 
else
{
 MessageBox.Show("Invalid Date!");
  e.Cancel = true;
}
}

Note: Please use DataType conversion before use. because i haven''t implemented it.

Thanks,
Imdadhusen

Try the following links:
How to: Host Controls in Windows Forms DataGridView Cells
Walkthrough: Validating Data in the Windows Forms DataGridView Control
How to: Validate Data in the Windows Forms DataGridView Control

you can use RangeValidatorcontrol where you can set minimumvalue="7/1/2005" and maximumvalue="21/1/2005"
Try
RangeValidator Control[^]

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