我正在尝试将csv文件加载到datagridview 现在我想添加过滤到datagridview
怎么办? 这是我如何阅读和加载csv文件
openFileDialog1.InitialDirectory = @"C:\";
openFileDialog1.Title = "Open CSV Files";
openFileDialog1.CheckFileExists = true;
openFileDialog1.CheckPathExists = true;
openFileDialog1.DefaultExt = "CSV";
openFileDialog1.Filter = "CSV files (*.csv)|*.csv|All files(*.*)|*.*";
openFileDialog1.FilterIndex = 1;
openFileDialog1.RestoreDirectory = true;
try
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
string csvPath = openFileDialog1.FileName;
string rowValue;
// int rowValue = int.Parse(??);
string[] cellValue;
dataGridView1.Rows.Clear();
//dataGridView1.Columns.Clear();
if (System.IO.File.Exists(csvPath))
{
System.IO.StreamReader fileReader = new StreamReader(csvPath);
rowValue = fileReader.ReadLine();
cellValue = rowValue.Split(',');
for (int i = 0; i <= cellValue.Count() - 1; i++)
{
DataGridViewTextBoxColumn column = new DataGridViewTextBoxColumn();
column.Name = cellValue[i]; //column name , value
column.HeaderText = cellValue[i];
dataGridView1.Columns.Add(column);
// dataGridView1.Columns[].CellType = typeof(Int64);
//Conver.ToString
dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter; // Korean? 칼럼 헤더 가운데 정렬
// dataGridView1.RowHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
// dataGridView1.Columns[0].DataPropertyName = "field name";
}
while (fileReader.Peek() != -1)
{
rowValue = fileReader.ReadLine();
cellValue = rowValue.Split(',');
dataGridView1.Rows.Add(cellValue);
}
fileReader.Dispose();
fileReader.Close();`
答案 0 :(得分:6)
不是直接向DataGridView
添加行,而是将其添加到DataTable
,然后将该表设置为DataSource
的{{1}},然后使用DataGridView
过滤table.DefaultView.RowFilter
。
您只需使用以下示例更改代码即可。
创建一个DataTable:
DataGridView
将列添加到DataTable:
var table = new DataTable();
向DataTable添加行:
使用范围添加行,例如table.Columns.Add("column name");
:
string[]
将表格设置为table.Rows.Add(range);
DataSource
DataGridview
使用DataTable进行过滤:
要使用数据表进行过滤,例如仅显示dataGridView1.DataSource = table;
为FirstName
的行:
John
了解详情: