如何在网格视图中添加行 [英] how to add the row in the grid view

问题描述

如何在网格视图中更改的下拉选定索引上添加网格视图中的行

how to add the row in the grid view on the drop down selected index changed in the grid view

推荐答案

检查此线程.
在每次单击按钮时向GridView添加新行 [ ^ ]

check this thread.
Add new row to GridView on each button-Click[^]

我的aspx代码:

my aspx code:

<div>
        <asp:GridView runat="server" ID="grdview">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:DropDownList runat="server" ID="Select_Spin2" AutoPostBack="true" OnSelectedIndexChanged="Select_Spin2_IndexChanged">
                            <asp:ListItem Text="First" Value="1" />
                            <asp:ListItem Text="Second Value="2" />

                        </asp:DropDownList>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </div>

我后面的代码

My code behind

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DataTable dt = new DataTable();
            DataRow dr = dt.NewRow();
            dt.Rows.Add(dr);            
            grdview.DataSource = dt;
            grdview.DataBind();
        }
    }


    protected void Select_Spin2_IndexChanged(object sender, EventArgs e)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("Column1");
        DataRow dr = dt.NewRow();
        foreach (GridViewRow gvr in grdview.Rows)
        {
            dr = dt.NewRow();
            dr["Column1"] = ((DropDownList)gvr.Cells[0].FindControl("Select_Spin2")).SelectedValue;
            dt.Rows.Add(dr);
        }
        DataRow dr1 = dt.NewRow();
        dt.Rows.Add(dr1);
        grdview.DataSource = dt;
        grdview.DataBind();
        foreach (GridViewRow row in grdview.Rows)
        {
            DropDownList ddl = row.FindControl("Select_Spin2") as DropDownList;
            ddl.SelectedValue = row.Cells[1].Text;
        }
        

    }
}

<asp:gridview ID="Gridview1" runat="server" ShowFooter="true" AutoGenerateColumns="false">
        <Columns>
        <asp:BoundField DataField="RowNumber" HeaderText="Row Number" />
        <asp:TemplateField HeaderText="Header 1">
            <ItemTemplate>
                <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Header 2">
            <ItemTemplate>
                <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Header 3">
            <ItemTemplate>
                 <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
            </ItemTemplate>
            <FooterStyle HorizontalAlign="Right" />
            <FooterTemplate>
             <asp:Button ID="ButtonAdd" runat="server" Text="Add New Row" />
            </FooterTemplate>
        </asp:TemplateField>
        </Columns>
</asp:gridview>

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