我在表中有 10 列，但我想在 c# 中的 datagrid 中只显示 4 列，我该怎么做？

Question

我找不到解决方案...我在 DataGrid 视图中设置了 4 列，但是当我使用 SqlDatAdapter 和 DataTable 时，它​​显示所有列。

Answer 1

This happens when the AutoGenerateColumns property is set to true (which is the default value). To turn it off, set AutoGenerateColumns to false.

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.autogeneratecolumns.aspx

Answer 2

First, set GridView's property AutoGenerateColumns=false . During database connectivity, select only the four columns that you are needed and fill the DataAdapter with the DataTable. Then it will work.

Answer 3

What Babak Naffas said and you need to define your columns of the items that you want to show instead...

see: http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.datagrid.aspx

There is an example toward the end of the article that show how to do this.

Answer 4

if you use Windows Forms you can write

dataGridView1.Columns["ID"].Visible = false;

or

dataGridView1.Columns[6].Visible = false;

winforms

---

if you use wpf you can write

dataGridView1.Columns[7].Visibility = Visibility.Hidden;

wpf

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for(int i = 6; i > dgvData.Columns.Count; i++)
  {
    dataGridView1.Columns[i].Visible = false;
  }