Question

如果我点击第二行中的编辑图像按钮，如何从代码隐藏中的gridView获取AppId。

Application List

Aspx代码：

<asp:BoundField HeaderText="AppId" DataField="AppID" />


<asp:TemplateField HeaderText="Actions" ControlStyle-Width="20px" ItemStyle-Width="130px">
                    <ItemTemplate>
                      <asp:ImageButton ID="imgMailCamp" runat="server" ImageUrl="~/Images/AppSetup/Mail.png"
                            Height="18px" ToolTip="Send Mail Campaign" CssClass="grdImageAlign"  CommandName="SendMail" OnClick="btnMailCamp_Click"    />
                        <asp:ImageButton ID="imgViewApp" runat="server" ImageUrl="~/Images/AppSetup/application-view-list-icon.png"
                            Height="18px" ToolTip="View Appplication" CssClass="grdImageAlign" CommandName="View" OnClick="btnView_Click" />
                        <asp:ImageButton ID="imgEditApp" runat="server" ImageUrl="~/Images/AppSetup/Action-edit-icon.png"
                            Height="18px" ToolTip="Edit Application" CssClass="grdImageAlign" CommandName="Edit" OnClick="btnEdit_Click"/>
                        <asp:ImageButton ID="imgDeleteApp" runat="server" ImageUrl="~/Images/AppSetup/Trash-can-icon.png"
                            Height="18px" ToolTip="Delete Application" CssClass="grdImageAlign" CommandName="Delete" OnClick="btnDelete_Click" />
                   </ItemTemplate>
                </asp:TemplateField>

C＃代码：

protected void btnEdit_Click(object sender, EventArgs e)
{
   // I need to get the current row appId, I use this appId in next page for sql query
  Response.Redirect("/Secured/EditApplication.aspx?AppID="+AppID);
}

Answer 1

尝试这样....不要定义按钮的Click事件....定义按钮就像这样......

     <asp:ImageButton ID="imgEditApp" runat="server"
 ImageUrl="~/Images/AppSetup/Action-edit-icon.png" 
    Height="18px" ToolTip="Edit Application" CssClass="grdImageAlign" 
CommandName="Edit"/>

和定义你的GridView RowEditing事件就像这样......

 protected void gv_RowEditing(object sender, GridViewEditEventArgs e)
        {
          Response.Redirect("/Secured/EditApplication.aspx?AppID="+YourGridViewId.Rows[e.NewEditIndex].Cells[1].Text);
        }

修改我认为你在定义RowEditingEvent时遇到问题.....好吧你可以做到这一点......没有什么可以改变的只是在你的Click代码中写这个代码......

protected void btnEdit_Click(object sender, EventArgs e) { ImageButton ib = sender as ImageButton; GridViewRow row = ib.NamingContainer as GridViewRow; Response.Redirect("/Secured/EditApplication.aspx?AppID="+YourGridViewId.Rows[row.RowIndex].Cells[1].Text); }

修改2

<asp:ImageButton ID="imgEditApp" runat="server" ImageUrl="~/Images/AppSetup/Action-edit-icon.png" Height="18px" ToolTip="Edit Application" CssClass="grdImageAlign" CommandName="Edit" CommandArgument='<%#Eval("AppID") %>'/> protected void btnEdit_Click(object sender, EventArgs e) { string appid= (sender as ImageButton).CommandArgument; Response.Redirect("/Secured/EditApplication.aspx?AppID="+appid }

Answer 2

您可以从中获取网格视图单元格值。

GridView.Rows[RowIndex].Cells[CellIndex].Text

此处“RowIndex”是您要从中获取数据的行号，“CellIndex”是您要从中获取数据的单元格编号。

我认为gridview的事件“OnRowCommand”最适合您的问题。使用blow link了解更多详情

http://www.codeproject.com/Tips/564619/Example-of-gridview-rowcommand-on-Button-Click

Answer 3

应该是commandargument
ASPX

<asp:ImageButton ID="imgEditApp" CommandArgument='<%# Eval("AppID") %>' runat="server" ... OnClick="btnEdit_Click"/>

代码

protected void gv_RowEditing(object sender, GridViewEditEventArgs e)
        {
          int categoryId = Convert.ToInt32(e.CommandArgument);
          Response.Redirect("/Secured/EditApplication.aspx?AppID="+categoryId);
        }

或者你可以使用imagebutton的PostBackUrl属性，它就像这样：

<asp:ImageButton ID="imgEditApp" PostBackUrl='<%# string.Format("/Secured/EditApplication.aspx?AppID={0}", Eval("AppID")) %>' runat="server" />

Answer 4

检查此代码段。

这是aspx文件中的代码，其中包含两列DataBound“AppId”和包含Image Button的TemplateColumn“Action”。观察Image Button的CommandName和CommandArgument属性。还为gridview定义OnRowCommand事件监听器。

<asp:GridView ID="grdDisplayData" runat="server" AutoGenerateColumns="false" 
            EnableViewState="false" onrowcommand="grdDisplayData_RowCommand">
            <Columns>
                <asp:BoundField HeaderText="AppId" DataField="AppId" />
                <asp:TemplateField HeaderText="Action" >
                    <ItemTemplate>
                        <asp:Button ID="btnEdit" runat="server" Text="Edit" CommandName="MyEdit" 
                        CommandArgument="<%# ((GridViewRow) Container).RowIndex%>"/>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="ImageAction">
                    <ItemTemplate>
                        <asp:ImageButton ID="ImageButton1" runat="server" Width="15px" Height="15px" 
                            CommandName="ImgEdit" CommandArgument="<%# ((GridViewRow) Container).RowIndex%>"/>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

这是代码背后的代码。 e.CommandArument返回单击图像按钮的行的索引。

protected void grdDisplayData_RowCommand(object sender, System.Web.UI.WebControls.GridViewCommandEventArgs e)
        {
            if (e.CommandName == "ImgEdit")
            {
                int RowIndex = Convert.ToInt32(e.CommandArgument);
                Response.Redirect("/Secured/EditApplication.aspx?AppID=" + grdDisplayData.Rows[RowIndex].Cells[1].Text.Trim());
            }
        }

如果这解决了您的问题，请告诉我。

干杯!!! Piyush Deshpande

如何在代码中获取gridview列值

4 个答案: