[英]Delete rows from datagridView based on a condition in Winforms
當文本框的值更改時,將在 datagridview 中添加一行。 當文本框的值恢復為 0 時,將刪除同一行。
數據已添加,但我不知道如何根據條件從數據網格視圖中刪除記錄。
private void textBox1_TextChanged(object sender, EventArgs e)
{
value = Convert.ToInt32(textBox1.Text);
if (value == 2)
{
string[] row1 = { "Value is 2" }; //column name is column1
dataGridView1.Rows.Add(row1);
}
if (value == 0)
{
// code to delete the row when Value is equal to 0 and the
//condition is data in column1 of datagridView = "Value is 2"
}
}
誰能幫我刪除dataGridView1中的行/行?
在條件下,dataGridView1 的 column1 中的數據為“Value is 2”
存儲添加行的索引以確保刪除正確的行並且僅刪除最后添加的行。
int connectedRowId = -1;
private void textBox1_TextChanged(object sender, EventArgs e)
{
value = Convert.ToInt32(textBox1.Text);
if (value == 2)
{
string[] row1 = { "Value is 2" }; //column name is column1
connectedRowId = dataGridView1.Rows.Add(row1);
}
if (value == 0)
{
dataGridView1.Rows.RemoveAt(connectedRowId);
}
}
您可以循環行並按值查找:
private void textBox1_TextChanged(object sender, EventArgs e)
{
value = Convert.ToInt32(textBox1.Text);
if (value == 2)
{
string[] row1 = { "Value is 2" }; //column name is column1
dataGridView1.Rows.Add(row1);
}
if (value == 0)
{
dataGridView1.Rows.RemoveAll(row => row.Cells[0].Value == "Value is 2");
}
}
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