关于 c#:DataGridView 绑定到 BindingList 显示太多列

DataGridView bound to BindingList shows too many columns

我有一个具有两个公共属性的类，名称和文本。我想将 DataGridView 绑定到这些对象的列表，所以我将它们加载到 BindingList<> 中。我只想在 DataGridView 中显示 Name 属性，但我得到了两列。我做错了什么？

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

private void fileOpenTextBox1_FileSelected(object sender, string e)
{
m_definitions = new BindingList<TagSimDefinition>(TagSimDefinition.Read(e));

dgvTagNames.AutoGenerateColumns = false;
dgvTagNames.Columns.Clear();
DataGridViewCell cell = new DataGridViewTextBoxCell();
DataGridViewTextBoxColumn colTagName = new DataGridViewTextBoxColumn()
{
CellTemplate = cell,
Name ="colTagName",
HeaderText ="Tag Name",
DataPropertyName ="Name"
};

dgvTagNames.Columns.Add(colTagName);
dgvTagNames.DataSource = m_definitions;
}

相关讨论

@Robert 你正在设置，

1	dgvTagNames.DataSource = m_definitions;

因为它显示了两列。如果您想获得一列，请像这样使用它，

1
2
3
4
5
6
7
8

m_definitions = new BindingList<TagSimDefinition>(TagSimDefinition.Read(e));

dgvTagNames.AutoGenerateColumns = false;
dgvTagNames.Columns.Clear();
dgvTagNames.ColumnCount = 1;
dgvTagNames.Columns[0].Name ="colTagName";
dgvTagNames.Columns[0].DataPropertyName ="colTagName";
dgvTagNames.DataSource = m_definitions;

另一种解决方案：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

m_definitions = new BindingList<TagSimDefinition>(TagSimDefinition.Read(e));
dgvTagNames.Columns.Clear();
DataGridViewCell cell = new DataGridViewTextBoxCell();
DataGridViewTextBoxColumn colTagName = new DataGridViewTextBoxColumn()
{
CellTemplate = cell,
Name ="colTagName",
HeaderText ="Tag Name",
DataPropertyName ="Name"
};

dgvTagNames.Columns.Add(colTagName);

dgvRegion.Rows.Clear();
int index = 0;
foreach (var dparam in m_definitions)
{
dgvTagNames.Rows.Add();
dgvTagNames["colTagName", index].Value = dparam.<Property1>;
dgvTagNames.Rows[index].Tag = dparam;
index++;
}