[英]how can I reset or refresh DataGridView Cell back color?
我面臨有關DataGridView單元背景色的問題。
首先,我要更改datagridview2的特定單元格的背景色。
int cnt = dataGridView1.Rows.Count;
for (int i = 0; i < cnt; i++)
{
string starting = dataGridView1.Rows[i].Cells[9].Value.ToString();
string startings = Convert.ToDateTime(starting.ToString()).ToString("dd MMM yyyy");
string ending = dataGridView1.Rows[i].Cells[10].Value.ToString();
string endings = Convert.ToDateTime(ending.ToString()).ToString("dd MMM yyyy");
TimeSpan ts = Convert.ToDateTime(ending.ToString()) - Convert.ToDateTime(starting.ToString());
double diff = ts.TotalDays + 1;
int dif = Convert.ToInt32(diff);
for (int d = 0; d < dif; d++)
{
string str = Convert.ToDateTime(starting.ToString()).AddDays(d).ToString("dd MMM yyyy");
dataGridView2.Rows[i].Cells[str].Style.BackColor = Color.Olive;
}
}
我需要根據在datagridview1中輸入的新值重置背景色。 這是我的代碼。
Private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == 7 || e.ColumnIndex == 8 || e.ColumnIndex == 9 || e.ColumnIndex == 10)
{
int prd_per_d = Convert.ToInt32(dataGridView1.CurrentRow.Cells[7].Value);
int qty=Convert.ToInt32(dataGridView1.CurrentRow.Cells[6].Value);
dataGridView1.CurrentRow.Cells[8].Value = qty / prd_per_d + 5;
DateTime sdt = Convert.ToDateTime(dataGridView1.CurrentRow.Cells[9].Value);
int req_day = Convert.ToInt32(dataGridView1.CurrentRow.Cells[8].Value);
dataGridView1.CurrentRow.Cells[10].Value = sdt.AddDays(req_day);
int cnt = dataGridView1.Rows.Count;
for (int i = 0; i < cnt; i++)
{
string starting = dataGridView1.Rows[i].Cells[9].Value.ToString();
string startings = Convert.ToDateTime(starting.ToString()).ToString("dd MMM yyyy");
string ending = dataGridView1.Rows[i].Cells[10].Value.ToString();
string endings = Convert.ToDateTime(ending.ToString()).ToString("dd MMM yyyy");
TimeSpan ts = Convert.ToDateTime(ending.ToString()) - Convert.ToDateTime(starting.ToString());
double diff = ts.TotalDays + 1;
int dif = Convert.ToInt32(diff);
for (int d = 0; d < dif; d++)
{
string str = Convert.ToDateTime(starting.ToString()).AddDays(d).ToString("dd MMM yyyy");
dataGridView2.Rows[i].Cells[str].Style.BackColor = Color.Olive;
}
}
}
}
但是,當我在datagridview1中輸入值時,沒有可見的變化發生。 它僅適用於新單元格,不適用於現有的彩色單元格更改為默認值。 知道為什么嗎?
大約一周前,我遇到了同樣的問題。 我僅用兩行programmcode解決了它。 希望這對您有所幫助! :
this.dataGridView1.RowsDefaultCellStyle.BackColor = Color.Bisque;
this.dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.Beige;
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