[控件] ---GridView、ASPxGridView---记录的批量修改

来源：互联网发布：留学低龄化数据图编辑：程序博客网时间：2024/06/05 00:34

使用GridView自带的编辑功能，只能一条一条记录的修改，如果要求批量修改，必须使用模板。

对于ASPxGridView，方法如下：

（1）aspx文件

<dxwgv:ASPxGridView ID="grid" runat="server" AutoGenerateColumns="False"
            DataSourceID="DSCourse" KeyFieldName="CourseID" ClientInstanceName="grid" >
            <SettingsPager Visible="False">
            </SettingsPager>
            <Columns>
                <dxwgv:GridViewCommandColumn ShowSelectCheckbox="True" VisibleIndex="0">
                </dxwgv:GridViewCommandColumn>
                <dxwgv:GridViewDataTextColumn Caption="序号" VisibleIndex="1" Width="25px">
                    <DataItemTemplate>
                        <%# Container.ItemIndex+1%>
                    </DataItemTemplate>
                </dxwgv:GridViewDataTextColumn>
                <dxwgv:GridViewDataTextColumn FieldName="CourseName" VisibleIndex="2">
                </dxwgv:GridViewDataTextColumn>
                <dxwgv:GridViewDataTextColumn FieldName="Credit" VisibleIndex="3">
                    <DataItemTemplate>
                        <dxe:ASPxTextBox ID="ASPxTextBox1" runat="server" Text='<%# Bind("Credit") %>'
                            Value='<%# Bind("Credit") %>' Width="170px">
                        </dxe:ASPxTextBox>
                    </DataItemTemplate>
                </dxwgv:GridViewDataTextColumn>
                <dxwgv:GridViewDataTextColumn FieldName="CreditHour" VisibleIndex="4">
                    <DataItemTemplate>
                        <dxe:ASPxTextBox ID="ASPxTextBox2" runat="server" Text='<%# Bind("CreditHour") %>'
                            Value='<%# Bind("CreditHour") %>' Width="170px">
                        </dxe:ASPxTextBox>
                    </DataItemTemplate>
                </dxwgv:GridViewDataTextColumn>
            </Columns>
</dxwgv:ASPxGridView>

其中数据源为：

<asp:AccessDataSource ID="DSCourse" runat="server" DataFile="~/WebCourse.mdb"
            SelectCommand="SELECT [CourseID], [CourseName], [Credit], [CreditHour],[zp] FROM [Course]" UpdateCommand="update Course set Credit=?,CreditHour=?,zp=Credit+CreditHour where CourseID=?">
            <UpdateParameters>
                <asp:Parameter Name="Credit" Type="Single" />
                <asp:Parameter Name="CreditHour" Type="Single" />
                <asp:Parameter Name="CourseID" Type="Int32" />
            </UpdateParameters>
</asp:AccessDataSource>

（2）cs文件

protected void ASPxButton3_Click(object sender, EventArgs e)
{
         for(int i=0;i<grid.VisibleRowCount;i++)
        {
            ASPxTextBox tb1 = grid.FindRowCellTemplateControl(i, null, "ASPxTextBox1") as ASPxTextBox;
            ASPxTextBox tb2 = grid.FindRowCellTemplateControl(i, null, "ASPxTextBox2") as ASPxTextBox;
            DSCourse.UpdateParameters["Credit"].DefaultValue = tb1.Text;
            DSCourse.UpdateParameters["CreditHour"].DefaultValue = tb2.Text;
            DSCourse.UpdateParameters["CourseID"].DefaultValue = grid.GetRowValues(i, "CourseID").ToString();
            DSCourse.Update();

}
}

而对于VS2005自带的GridView控件，方法要简单一些，如下：

（1）aspx文件
<asp:GridView ID="grid1" runat="server" AutoGenerateColumns="False" DataKeyNames="CourseID"
            DataSourceID="DSCourse" BackColor="LightGoldenrodYellow" BorderColor="Tan" BorderWidth="1px" CellPadding="2" ForeColor="Black" GridLines="None">
            <Columns>
                <asp:BoundField DataField="CourseName" HeaderText="CourseName" SortExpression="CourseName" />
                <asp:TemplateField HeaderText="Credit" SortExpression="Credit">
                    <ItemTemplate>
                        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("Credit") %>'></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="CreditHour" SortExpression="CreditHour">
                    <ItemTemplate>
                        <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("CreditHour") %>'></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="zp" HeaderText="总分" SortExpression="zp" />
            </Columns>
            <FooterStyle BackColor="Tan" />
            <PagerStyle BackColor="PaleGoldenrod" ForeColor="DarkSlateBlue" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="DarkSlateBlue" ForeColor="GhostWhite" />
            <HeaderStyle BackColor="Tan" Font-Bold="True" />
            <AlternatingRowStyle BackColor="PaleGoldenrod" />
</asp:GridView>

（2）cs文件

protected void ASPxButton2_Click(object sender, EventArgs e)
{
for (int i = 0; i < grid1.Rows.Count; i++)
grid1.UpdateRow(i, false);
}

很奇怪，ASPxGridView控件为何没有UpdateRow方法？