我有型datagridview的文本框列的GridView控件,在下面列有:
SrNo | Description | HSNCode | Qty | Rate | Amount
我在我的程序自动生成量,但我要检查,如果用户输入达现场没有“速率”中输入数据,然后我想设置焦点回到我在程序的“费率”字段:
我曾尝试下面的代码:
private void grdData_CellLeave(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 4)
{
if(grdData.Rows[e.RowIndex].Cells[4].Value== null)
{
grdData.CurrentCell = grdData.Rows[e.RowIndex].Cells[4];
}
}
}
但是,代码是行不通的。
我应该怎么做才能将焦点切换到是先于“数量”字段?
请帮忙。
尝试:
private void grdData_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
if (e.ColumnIndex == 5)
{
if(grdData.Rows[e.RowIndex].Cells[3].Value.Equals(""))
{
grdData.ClearSelection();
grdData.Rows[e.RowIndex].Cells[3].Selected = true;
}
}
}
更新-测试,使用精细的工作cellclick
事件
private void grdData_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 5)
{
if(grdData.Rows[e.RowIndex].Cells[3].Value.Equals(""))
{
grdData.ClearSelection();
grdData.Rows[e.RowIndex].Cells[3].Selected = true;
}
}
}
private void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
int row = e.RowIndex;
int col = e.ColumnIndex;
if (row < 0 || col != 3)
return;
if (e.FormattedValue.ToString().Equals(String.Empty))
{
}
else
{
double quantity = 0;
try
{
quantity = Convert.ToDouble(e.FormattedValue.ToString());
if (quantity == 0)
{
MessageBox.Show("The quantity can not be Zero", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
e.Cancel = true;
return;
}
}
catch
{
MessageBox.Show("The quantity should be decimal value.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
e.Cancel = true;
return;
}
}
}
你可以试试这一段代码
dgv.ClearSelection();
dgv.Rows[rowindex].Cells[columnindex].Selected = true;
请参阅下面的代码:
DataGridView1.CurrentCell = dataGridView1[1, 1].Value;
'or
DataGridView1.CurrentCell = DataGridView1.Item("ColumnName", 5)
dataGridView1.BeginEdit(true)
如需更多帮助,您可以按照以下链接的讨论:
http://www.vbdotnetforums.com/winforms-grids/11313-setting-cell-focus-datagridview.html
希望它的帮助。