Question

添加了RowEditing，RowUpdating等Gridview事件。 GridView位于UserControl中。 UserControl将在aspx上的Placeholder-Control中动态加载。一切都很好，RowEditing事件提升但Rowupdating事件不会触发。 RowEditing事件加载页面，页面加载Usercontrol，现在gridview处于编辑模式，但单击更新按钮时不会触发GridView RowUpdating事件。

示例代码：

                <asp:TemplateField HeaderText="Product ID">
                    <ItemTemplate>
                        <%# Eval("pid") %>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtpid" runat="Server" Text='<%# Eval("pid") %>' Columns="30"></asp:TextBox>
                        <asp:RequiredFieldValidator ID="req1" runat="Server" Text="*" ControlToValidate="txtpid"></asp:RequiredFieldValidator>
                    </EditItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Produt Name">
                    <ItemTemplate>
                        <%# Eval("pname") %>
                    </ItemTemplate>
                    <EditItemTemplate>
                        <asp:TextBox ID="txtpname" runat="Server" TextMode="MultiLine" Rows="10" Columns="50"
                            Text='<%# Eval("pname") %>'></asp:TextBox>
                        <asp:RequiredFieldValidator ID="req2" runat="Server" Text="*" ControlToValidate="txtpname"></asp:RequiredFieldValidator>
                    </EditItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="Price">
                    <ItemTemplate>
                        <%# Eval("price") %>
                    </ItemTemplate>
                    <EditItemTemplate>
                         <asp:TextBox ID="txtprice" runat="Server" TextMode="MultiLine" Rows="10" Columns="50"
                            Text='<%# Eval("price") %>'></asp:TextBox>
                    </EditItemTemplate>
                </asp:TemplateField>

            </Columns>
            <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
            <RowStyle BackColor="#FFFBD6" ForeColor="#333333" VerticalAlign="Top" />
            <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
            <PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
            <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" HorizontalAlign="Left" />
            <AlternatingRowStyle BackColor="White" />
        </asp:GridView>
        <asp:Label ID="lblMessage" runat="Server" ForeColor="Red"></asp:Label>

代码背后的代码：

protected void Page_Load（object sender，EventArgs e） {

        Page pageHolder = new Page();
        UserControl userControl = (UserControl)pageHolder.LoadControl("~/WebUserControl2.ascx");
        userControl.Controls.Add(GridView1);
        holder2.Controls.Add(userControl);
        if (!IsPostBack)
        {
            BindData();
        }
    }

    /// <summary>
    /// Bind data to the grid
    /// </summary>
    private void BindData()
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
        SqlDataAdapter dAd = new SqlDataAdapter("select * from product", conn);
        DataSet dSet = new DataSet();
        try
        {

            dAd.Fill(dSet,"product");
            GridView1.DataSource = dSet.Tables["product"].DefaultView;
            GridView1.DataBind();
        }
        catch (Exception ee)
        {
            lblMessage.Text = ee.Message.ToString();
        }
        finally
        {
            dSet.Dispose();
            dAd.Dispose();
            conn.Close();
            conn.Dispose();
        }
    }

    /// <summary>
    /// fires when edit link is clicked
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void EditRecord(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;            
        BindData();
    }
    /// <summary>
    /// fires when cancel link is clicked
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void CancelRecord(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        BindData();
    }
    /// <summary>
    /// fires when update link is clicked
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void UpdateRecord(object sender, GridViewUpdateEventArgs e)
    {
        GridViewRow row = (GridViewRow)GridView1.Rows[e.RowIndex];

        //int autoid = Int32.Parse(GridView1.DataKeys[e.RowIndex].Value.ToString());
        TextBox tPageName = (TextBox)row.FindControl("txtpid");
        TextBox tPageDesc = (TextBox)row.FindControl("txtpname");
        TextBox dActive = (TextBox)row.FindControl("txtprice");


        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ToString());
        SqlCommand dCmd = new SqlCommand();
        try
        {
            conn.Open();
            dCmd.CommandText = "spUpdateData";
            //dCmd.CommandType = CommandType.StoredProcedure;
           // dCmd.Parameters.Add("@AutoID", SqlDbType.Int).Value = autoid;
            dCmd.CommandText = @"insert into [product](pid,pname,price)values(@pid,@pname,@price)";
            dCmd.Parameters.Add("@pid", SqlDbType.Char, 10).Value = tPageName.Text.Trim();
            dCmd.Parameters.Add("@pname", SqlDbType.VarChar, 50).Value = tPageDesc.Text.Trim();
            dCmd.Parameters.Add("@price", SqlDbType.VarChar,50).Value = dActive.Text.Trim();
            dCmd.Connection = conn;
            dCmd.ExecuteNonQuery();

            lblMessage.Text = "Record Updated successfully.";


            // Refresh the data
            GridView1.EditIndex = -1;
            BindData();
        }
        catch (SqlException ee)
        {
            lblMessage.Text = ee.Message;
        }
        finally
        {
            dCmd.Dispose();
            conn.Close();
            conn.Dispose();
        }

    }

Answer 1

我在Gridview中看不到您的更新按钮。

好吧无论如何，只需确保在更新按钮上有 CommandName =“更新”，以便 RowUpdating 事件正确触发。

GridView RowUpdating事件不会引发？

1 个答案: