使用下拉菜单INSIDE GRIDVIEW的选定索引更改事件 [英] working with selected index change event of dropdown INSIDE GRIDVIEW

问题描述

我有一个网格视图，该视图由DROPDOWN和每行2个文本框组成.单击按钮(在页脚处)后，应将第一行中的数据插入到DATABASE表中，并且必须创建新行.同样，无论何时在DDL中更改选定的索引，都必须使用DDL中选定项目的选定值填充该行中的相应文本框.对于在网格内部创建的每个新行应如何进行操作.
gridview的代码如下.

< asp:GridView ID = "  ShowFooter = "  AutoGenerateColumns = " 错误"
                    runat = "  > 
                    <列>
                        < asp:TemplateField HeaderText = "   > 
                            < ItemTemplate>
                                < asp:DropDownList ID = "  Width =  "  runat = "  CssClass = " 
                                  AutoPostBack = "  OnSelectedIndexChanged = "  DropDownProducts_SelectedIndexChanged" DataSourceID =   datasourceProducts" DataTextField = "  DataValueField = "  ProdId" </  asp:DropDownList  > 
                                < asp:SqlDataSource ID = "  runat =  "  ConnectionString = " 
                                    SelectCommand = "  </ > 
                            </  ItemTemplate  > 
                        </  asp:TemplateField  > 
                        < asp:TemplateField HeaderText = "  > 
                            < ItemTemplate>
                                < asp:TextBox ID = "  runat =  "  >  </  asp:TextBox  > 
                            </  ItemTemplate  > 
                        </  asp:TemplateField  > 
                        < asp:TemplateField HeaderText = "  >> 
                            < ItemTemplate>
                                < asp:TextBox ID = "  runat =  "  >  </  asp:TextBox  > 
                            </  ItemTemplate  > 
                            < FooterStyle Horizo​​ntalAlign = " />
                            < FooterTemplate>
                                < asp:Button ID = "  OnClick =  "  runat = "  Text = " />
                            </  FooterTemplate  > 
                        </  asp:TemplateField  > 
                    </ 列 > 
                </  asp:GridView  >  

我尝试在后面的代码中遵循以下方法，但是它似乎不起作用

 受保护的 无效 DropDownProducts_SelectedIndexChanged(对象发​​件人，EventArgs e)
        {
            
            TextBox box1 =(TextBox)GridView1.Rows [e.currentrow] .Cells [ 2 ].FindControl("  TextBox2")；
            DropDownList dl =(DropDownList)GridView1.Rows [e.currentrow] .Cells [ 2 ].FindControl("  DropDownProducts")；

            box1.Text = dl.SelectedValue.ToString();
        } 

解决方案

ConnectionStrings:EasyCut％>" SelectCommand = " </ > </ ItemTemplate > </ asp:TemplateField > < asp:TemplateField HeaderText = " > < ItemTemplate> < asp:TextBox ID = " runat = " > </ asp:TextBox > </ ItemTemplate > </ asp:TemplateField > < asp:TemplateField HeaderText = " >> < ItemTemplate> < asp:TextBox ID = " runat = " > </ asp:TextBox > </ ItemTemplate > < FooterStyle Horizo​​ntalAlign = " /> < FooterTemplate> < asp:Button ID = " OnClick = " runat = " Text = " /> </ FooterTemplate > </ asp:TemplateField > </ 列 > </ asp:GridView >

我尝试在后面的代码中遵循以下方法，但是它似乎不起作用

 受保护的 无效 DropDownProducts_SelectedIndexChanged(对象发​​件人，EventArgs e)
        {
            
            TextBox box1 =(TextBox)GridView1.Rows [e.currentrow] .Cells [ 2 ].FindControl("  TextBox2")；
            DropDownList dl =(DropDownList)GridView1.Rows [e.currentrow] .Cells [ 2 ].FindControl("  DropDownProducts")；

            box1.Text = dl.SelectedValue.ToString();
        } 

您好，

请看一下博客文章，也许它可以为您提供帮助:
http://asimsajjad.blogspot.in/2009/09/raising-dropdownlist.html [ ^ ]
类似的讨论:
http://stackoverflow.com/questions/5911874/dropdownlist-selectedindexchanged-within-gridview- [ ^ ]
http://stackoverflow. com/questions/463398/assign-an-event-to-a-custom-control-inside-a-repeater-control/463582#463582 [<asp:GridView ID="GridView1" ShowFooter="True" AutoGenerateColumns="False" runat="server" > <Columns> <asp:TemplateField HeaderText="Products/Services"> <ItemTemplate> <asp:DropDownList ID="DropDownProducts" Width="150px" runat="server" CssClass="RegistryDrop" AutoPostBack="true" OnSelectedIndexChanged="DropDownProducts_SelectedIndexChanged" DataSourceID="datasourceProducts" DataTextField="Name" DataValueField="ProdId"> </asp:DropDownList> <asp:SqlDataSource ID="datasourceProducts" runat="server" ConnectionString="<%$ ConnectionStrings:EasyCut %>" SelectCommand="SELECT [Name], [ProdId] FROM [tbl_ProdServ]"></asp:SqlDataSource> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Price"> <ItemTemplate> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Quantity"> <ItemTemplate> <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox> </ItemTemplate> <FooterStyle HorizontalAlign="Right" /> <FooterTemplate> <asp:Button ID="ButtonAdd" OnClick="btn_add_Click" runat="server" Text="Submit" /> </FooterTemplate> </asp:TemplateField> </Columns> </asp:GridView>

I tried following approach in the code behind but it doesnt seem to work

protected void DropDownProducts_SelectedIndexChanged(object sender, EventArgs e)
        {
            
            TextBox box1=(TextBox)GridView1.Rows[e.currentrow].Cells[2].FindControl("TextBox2");
            DropDownList dl=(DropDownList)GridView1.Rows[e.currentrow].Cells[2].FindControl("DropDownProducts");

            box1.Text = dl.SelectedValue.ToString();
        }

解决方案

ConnectionStrings:EasyCut %>" SelectCommand="SELECT [Name], [ProdId] FROM [tbl_ProdServ]"></asp:SqlDataSource> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Price"> <ItemTemplate> <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Quantity"> <ItemTemplate> <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox> </ItemTemplate> <FooterStyle HorizontalAlign="Right" /> <FooterTemplate> <asp:Button ID="ButtonAdd" OnClick="btn_add_Click" runat="server" Text="Submit" /> </FooterTemplate> </asp:TemplateField> </Columns> </asp:GridView>

I tried following approach in the code behind but it doesnt seem to work

protected void DropDownProducts_SelectedIndexChanged(object sender, EventArgs e)
        {
            
            TextBox box1=(TextBox)GridView1.Rows[e.currentrow].Cells[2].FindControl("TextBox2");
            DropDownList dl=(DropDownList)GridView1.Rows[e.currentrow].Cells[2].FindControl("DropDownProducts");

            box1.Text = dl.SelectedValue.ToString();
        }

Hello,

Please have a look at the blog post, may be it can help you:
http://asimsajjad.blogspot.in/2009/09/raising-dropdownlist.html[^]
Similar discussions:
http://stackoverflow.com/questions/5911874/dropdownlist-selectedindexchanged-within-gridview-not-firing[^]
http://stackoverflow.com/questions/463398/assign-an-event-to-a-custom-control-inside-a-repeater-control/463582#463582[^]

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