在Javascript中获取GridView选定的行DataKey [英] Get GridView selected row DataKey in Javascript

问题描述

我有可以选择一行的 GridView.然后我在网格上方有一个名为 Edit 的按钮，用户可以单击该按钮以弹出一个窗口并编辑所选行.所以按钮后面会有 Javascript 代码沿着

I have GridView which I can select a row. I then have a button above the grid called Edit which the user can click to popup a window and edit the selected row. So the button will have Javascript code behind it along the lines of

function editRecord()
{
  var gridView = document.getElementById("<%= GridView.ClientID %>");
  var id = // somehow get the id here ???
  window.open("edit.aspx?id=" + id);
}

问题是如何在javascript中检索选定的记录ID?

The question is how do I retrieve the selected records ID in javascript?

推荐答案

我根据 JasonS 的回复解决了这个问题.我所做的是在网格视图中创建一个隐藏字段，如下所示:

I worked it out based on JasonS response. What I did was create a hidden field in the Grid View like this:

<asp:TemplateField ShowHeader="False">
    <ItemTemplate>
      <asp:HiddenField ID="hdID" runat="server" Value='<%# Eval("JobID") %>' />
    </ItemTemplate>
</asp:TemplateField>
<asp:TemplateField Visible="False">
    <ItemTemplate>
      <asp:LinkButton ID="lnkSelect" runat="server" CommandName="select" Text="Select" />
    </ItemTemplate>
</asp:TemplateField>

然后在 OnRowDataBind 上有设置选中行的代码

Then on the OnRowDataBind have code to set the selected row

protected virtual void Grid_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // Click to highlight row
        Control lnkSelect = e.Row.FindControl("lnkSelect");
        if (lnkSelect != null)
        {
            StringBuilder click = new StringBuilder();
            click.AppendLine(m_View.Page.ClientScript.GetPostBackClientHyperlink(lnkSelect, String.Empty));
            click.AppendLine(String.Format("onGridViewRowSelected('{0}')", e.Row.RowIndex));
            e.Row.Attributes.Add("onclick", click.ToString());
        }
    }            
}

然后在 Javascript 中我有这样的代码

And then in the Javascript I have code like this

<script type="text/javascript">

var selectedRowIndex = null;

function onGridViewRowSelected(rowIndex)
{        
    selectedRowIndex = rowIndex;
}

function editItem()
{   
    if (selectedRowIndex == null) return;

    var gridView = document.getElementById('<%= GridView1.ClientID %>');                
    var cell = gridView.rows[parseInt(selectedRowIndex)+1].cells[0];        
    var hidID = cell.childNodes[0];        
    window.open('JobTypeEdit.aspx?id=' + hidID.value);
}

</script> 

很好用 :-)

这篇关于在Javascript中获取GridView选定的行DataKey的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！