c# - Datagridview 行过滤器

Question

我正在使用DataView和RowFilter。只有一列正在过滤，但我希望过滤所有列。

我想在文本框中搜索一个词来制作这个过滤器。

DataView dv = dt.DefaultView;

if (e.KeyChar == (char)13)
{
    dv.RowFilter = string.Format("Name LIKE '%{0}%'" ,textBox1.Text );
    //  dv.RowFilter = string.Format("Date LIKE '%{0}%'", textBox1.Text);
}

列标题name = Name、Date等。

Answer 1

多列的格式应该是这样的；

dv.RowFilter = "Column1 = " + value1 + " AND Column2 = " + value2;

根据您的情况；

dv.RowFilter = string.Format("Name LIKE '%{0}%' AND Date = {1}" ,textBox1.Text, DateValue );

Answer 2

(dataGridView1.DataSource as DataTable).DefaultView.RowFilter = string.Format("Name = '{0}'", TextBoxForSearch.Text);

Answer 3

string query = textBox1.Text;
if(query == string.Empty)
{
    dataTable.DefaultView.RowFilter = string.Empty;
}
else
{
    (dgv.DataSource as DataTable).DefaultView.RowFilter = string.Format("Name = {0}", textBox1.Text);
    (dgv.DataSource as DataTable).DefaultView.RowFilter = string.Format("Date = {1}", textBox1.Text);
}