嗨,我已经使用gridview创建一个表.
有没有办法实现编辑和删除.
我以前用PHP做过.我想要使​​用的方法是在表中再创建两列,每行包含编辑和删除按钮.然后,当单击按钮时,它会通过URL传递“id”并能够编辑或删除.不确定如何在asp.net webforms中执行此操作.下面是我的表格代码.谢谢.

 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
<Columns>
    <asp:BoundField HeaderText="Surgery" DataField="surgery" />
    <asp:BoundField HeaderText="PatientID" DataField="patientID" />
    <asp:BoundField HeaderText="Location" DataField="location" />

</Columns>          

SqlCommand cmd = new SqlCommand("select surgery, patientID, location from details", conn);
SqlDataAdapter sda = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
sda.Fill(dt);

conn.Close();

GridView1.DataSource = dt;
GridView1.DataBind();

最佳答案:

GridView支持这些操作.您可以添加一个包含命令按钮或LinkBut​​tons的CommandField(您可以选择按钮类型并指定每个按钮的文本). patientID字段应包含在GridView的DataKeyNames属性中,以便在更新或删除数据库中的记录时检索它.

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"
    DataKeyNames="patientID" 
    OnRowEditing="GridView1_RowEditing" OnRowCancelingEdit="GridView1_RowCancelingEdit"
    OnRowUpdating="GridView1_RowUpdating" OnRowDeleting="GridView1_RowDeleting" >
<Columns>
    <asp:CommandField ShowEditButton="true" ShowCancelButton="true" ShowDeleteButton="true" />
    <asp:BoundField HeaderText="Surgery" DataField="surgery" />
    ...
</Columns>

然后,您需要在代码隐藏中处理一些事件：

// The RowEditing event is called when data editing has been requested by the user
// The EditIndex property should be set to the row index to enter edit mode
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
    GridView1.EditIndex = e.NewEditIndex;
    BindData();
}

// The RowCancelingEdit event is called when editing is canceled by the user
// The EditIndex property should be set to -1 to exit edit mode
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
    GridView1.EditIndex = -1;
    BindData();
}

// The RowUpdating event is called when the Update command is selected by the user
// The EditIndex property should be set to -1 to exit edit mode
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    int patientID = (int)e.Keys["patientID"]
    string surgery = (string)e.NewValues["surgery"];
    string location = (string)e.NewValues["location"];

    // Update here the database record for the selected patientID

    GridView1.EditIndex = -1;
    BindData();
}

// The RowDeleting event is called when the Delete command is selected by the user
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
    int patientID = (int)e.Keys["patientID"]

    // Delete here the database record for the selected patientID

    BindData();
}

由于数据必须绑定到每个事件处理程序末尾的GridView,因此您可以在BindData实用程序函数中执行此操作,该函数也应在最初加载页面时调用：

private void BindData()
{
    SqlCommand cmd = new SqlCommand("select surgery, patientID, location from details", conn);
    SqlDataAdapter sda = new SqlDataAdapter(cmd);
    DataTable dt = new DataTable();
    sda.Fill(dt);
    conn.Close();
    GridView1.DataSource = dt;
    GridView1.DataBind();
}

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        BindData();
    }
}