检查列中的单元格是否具有相同的值
本文关键字:是否 单元格 检查 | 更新日期: 2023-09-27 18:22:01
我正在制作启动列表,所以很明显,我想防止出现具有相同启动号的竞争对手。我有用于输入值的TextBoxes,通过保存按钮转换为DataGridView表。像这样:
bool CheckFiledIsEmpty()
{
if (textStN.Text == string.Empty ||
textN.Text == string.Empty ||
textSN.Text == string.Empty ||
textC.Text == string.Empty ||
textYB.Text == string.Empty)
return false;
else
return true;
}
private void buttonSave_Click(object sender, EventArgs e)
{
if (CheckFiledIsEmpty())
{
string Column1 = textStN.Text;
string Column2 = textN.Text;
string Column3 = textSN.Text;
string Column4 = textC.Text;
string Column5 = textYB.Text;
string[] row = { Column1, Column2, Column3, Column4, Column5 };
dataGridView1.Rows.Add(row);
textStN.Text = "";
textN.Text = "";
textSN.Text = "";
textC.Text = "";
textYB.Text = "";
}
else
{
MessageBox.Show("Input all information about competitor!");
}
}
我希望当点击保存按钮时,会检查Column1
(起始号文本框textStN
)中以前的值,如果有相同的值,则会出现错误框,如:"具有该起始号的竞争对手已经存在!"
谢谢你的帮助,对不起我的英语。
如下修改代码:
bool CompetitorAlreadyExist()
{
foreach (DataGridViewRow row in dataGridView1.Rows)
{
foreach (DataGridViewCell cell in row.Cells)
{
if (cell.ColumnIndex == 0) // set your column index
{
// do your stuff here… i.e., compare `textStN.Text` with all values
// in column start # and return true or false
}
}
}
}
private void buttonSave_Click(object sender, EventArgs e)
{
if (CheckFiledIsEmpty() && CompetitorAlreadyExist())
{
string column1 = textStN.Text;
string column2 = textN.Text;
string column3 = textSN.Text;
string column4 = textC.Text;
string column5 = textYB.Text;
string[] row = { column1, column2, column3, column4, column5 };
dataGridView1.Rows.Add(row);
textStN.Text = "";
textN.Text = "";
textSN.Text = "";
textC.Text = "";
textYB.Text = "";
}
else
{
MessageBox.Show("Input all information about competitor!");
}
}
希望它能有所帮助。