如何清除datagridview行和列 [英] how to clear datagridview rows and columns
本文介绍了如何清除datagridview行和列的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用下面的代码将数据从列表项存储到数组.从数组存储到datagridview.
当我单击按钮时,数据成功地从数组添加到了datagridview.但是,如果我再次单击,则相同的数据出现两次到datagridview.中,[两次相同的数据].如何避免这种情况
i used below coding to store data from listitems to array.From array to datagridview.
when i click button data added successfully into datagridview from array., but if i click again the same data appear two times into datagridview., [two times same data]. how to avoid this
private void button1_Click(object sender, EventArgs e)
{
try
{
foreach (ListItem li2 in ch11.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch1.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch2.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch3.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch4.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch5.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch8.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch6.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch7.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch9.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
foreach (ListItem li2 in ch10.CheckedItems)
{
total_items[items] = li2.Text;
items++;
}
dataGridView1.Rows.Clear();
dataGridView1.Columns.Clear();
dataGridView1.Columns.Add("Items", "Choosed Items");
try
{
for (int j = 0; j < items; j++)
{
dataGridView1.Rows.Add(total_items[j].ToString());
}
}
catch (Exception err)
{
MessageBox.Show(err.Message);
}
}
catch (SqlException err)
{
MessageBox.Show(err.Message);
}
}
推荐答案
myGrid.Children.Clear()将删除嵌套在网格中的所有子控件. myGrid.RowDefinitions.Clear()将删除所有行定义. myGrid.ColumnDefinitions.Clear()将删除所有列定义.
myGrid.Children.Clear() will remove all child controls nested in the grid. myGrid.RowDefinitions.Clear() will remove all row definitions. myGrid.ColumnDefinitions.Clear() will remove all column definitions.
这篇关于如何清除datagridview行和列的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文