c# - DevExpress MVC GridView

Question

大家好 我正在尝试使用此代码在 GridView 上添加一个额外的列。但是当我运行它时。我无法单击 GridView 上的按钮。知道我做错了什么。谢谢

        settings.Columns.Add(column =>
        {
            column.FieldName = "Unbound";
            column.Caption = "Action";
            column.UnboundType = DevExpress.Data.UnboundColumnType.Object
            column.EditFormSettings.Visible = DevExpress.Utils.DefaultBoolean.True;
            column.ReadOnly = false;
            column.SetDataItemTemplateContent((c) =>
            {

                Html.DevExpress().Button(b =>
                {
                    b.Name = "btnVE" + c.KeyValue;
                    b.Text = "V/E";
                    b.ClientSideEvents.Click =
                    "function(s, e) { document.location='" + DevExpressHelper.GetUrl(new { Controller = "ViewPrincipal", Action = "EditRecord" })
                    + "?key=' + s.GetRowKey(e.visibleIndex); }";

                }).GetHtml();
            });
        });

        settings.Columns.Add("Id");
        settings.Columns.Add("Code");
        settings.Columns.Add("CompanyId");
        settings.Columns.Add("Description");
        settings.Columns.Add("ContactPerson");
        settings.Columns.Add("TelNo");
        settings.Columns.Add("Notes");

更新: 我通过网络开发人员工具在网络上发现了该错误，但我不知道如何修复它 Error button hover

Answer 1

听起来问题源自分配给此 block 上的按钮发送者的 s，而不是 GridView 行:

Html.DevExpress().Button(b =>
{
    b.Name = "btnVE" + c.KeyValue;
    b.Text = "V/E";
    b.ClientSideEvents.Click =
    "function(s, e) { document.location='" + DevExpressHelper.GetUrl(new { Controller = "ViewPrincipal", Action = "EditRecord" })
    + "?key=' + s.GetRowKey(e.visibleIndex); }"; // ==> 's' refers to button object as sender
}).GetHtml();

您应该使用 GridViewDataItemTemplateContainer 对象来获取相应行的 KeyValue 属性，该属性从 GridViewBaseRowTemplateContainer 返回整数值:

column.SetDataItemTemplateContent((c) =>
{
    Html.DevExpress().Button(b =>
    {
        b.Name = "btnVE" + c.KeyValue;
        b.Text = "V/E";
        b.UseSubmitBehavior = false; // prevent default submit action
        b.EnableClientSideAPI = true; // add this line if not sure
        b.ClientSideEvents.Click =
        "function(s, e) { window.location = '" + DevExpressHelper.GetUrl(new { Controller = "ViewPrincipal", Action = "EditRecord" })
        + "?key=" + c.KeyValue.ToString() + "'; }";

    }).GetHtml();
});

或者使用string.Format()，这样更容易阅读:

b.ClientSideEvents.Click = string.Format("function(s, e) {{ window.location = '{0}?key={1}'; }}", 
                           DevExpressHelper.GetUrl(new { Controller = "ViewPrincipal", Action = "EditRecord" }), 
                           c.KeyValue.ToString());

注释:

1) 如果要获取行索引，请使用c.VisibleIndex。

2) 出于跨浏览器的考虑，我更喜欢 window.location 而不是 document.location，如 here 所提供的那样。 .

相关问题:GridView - How to define Button inside grid