GridView 按代码隐藏列 [英] GridView Hide Column by code

问题描述

我想在我的 GridView 中隐藏 ID 列，我知道代码

I want to hide ID column in my GridView, I knew the code

GridView1.Columns[0].Visible = false;

但令人惊讶的是，我的 GridView 列的计数属性是 0 ！虽然我可以在 GridView 中看到数据，但有什么想法吗?

but the surprise was that my count property for my GridView columns is 0 !!! while I can see data in the GridView, so any ideas?

谢谢，

更新:

这是填充GridView

public DataSet GetAllPatients()
{
    SqlConnection connection = new SqlConnection(this.ConnectionString);

    String sql = "SELECT [ID],[Name],[Age],[Phone],[MedicalHistory],[Medication],[Diagnoses] FROM [dbo].[AwadyClinc_PatientTbl]order by ID desc";

    SqlCommand command = new SqlCommand(sql, connection);

    SqlDataAdapter da = new SqlDataAdapter(command);

    DataSet ds = new DataSet();

    da.Fill(ds);

    return ds;

}

推荐答案

GridView.Columns.Count 当您的 GridView 将其 AutoGenerateColumns 属性设置为 true(默认为 true).

GridView.Columns.Count will always be 0 when your GridView has its AutoGenerateColumns property set to true (default is true).

您可以显式声明您的列并将 AutoGenerateColumns 属性设置为 false，或者您可以在代码隐藏中使用它:

You can explicitly declare your columns and set the AutoGenerateColumns property to false, or you can use this in your codebehind:

GridView.Rows[0].Cells.Count

在绑定 GridView 数据后获取列数，或者:

to get the column count once your GridView data has been bound, or this:

protected void GridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
    e.Row.Cells[index].Visible = false;
}

使用 GridView 的 RowDataBound 事件将列设置为不可见.

to set a column invisible using your GridView's RowDataBound event.

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