Sharepoint 弹出消息提示框 .

在event receiver中如何弹出一个类似winform中messagebox.show 的框？

那我要对用户显示一些错误信息或者提示信息怎么搞？

如果是在ItemAdding或者其他进行时(ing)事件里面，可以使用HttpContext.Current.Response.Write("<script>alert('aaaa');</script>");

如果是在ItemAdded或者其他结束后（ed）事件里面，那就没招。因为这类事件是异步的，已经获取不到页面的HttpResponse。

可以在event reciver 里控制转向错误页面。
http://www.c-sharpcorner.com/Blogs/4224/sharepoint-2010-event-handler-redirection-to-custom-error-pa.aspx

properties.Status = SPEventRecieverStatus.CancelWithRedirectUrl;
Properties.RedirectUrl = “/_layouts/MyBlog/CustomError.aspx"

public override void ItemAdding(SPItemEventProperties properties)

{

base.ItemAdding(properties);

string tite = properties.AfterProperties[“title”].ToString();

if(tite.Contains(“_”))

{

properties.Cancel = true;

properties.Status = SPEventRecieverStatus.CancelWithRedirectUrl;

Properties.RedirectUrl = “/_layouts/MyBlog/CustomError.aspx?errormessage =Inavlid

Title”;

}

Create a application page called customerror.aspx and show the error message from the query string

<asp:Content ID="Main" ContentPlaceHolderID="PlaceHolderMain" runat="Server"> <asp:Label ID="lblError" runat="server" > </asp:Label> </asp:Content>

Add the following code in the page load

protected void Page_Load(object sender EventArgs e)

{

lblError.Text = Request.Param[“Error”];

}

function openAnswerQandADialog() {
var options = {
url: "/_layouts/QandA_PersonalAnswer.aspx",
width: 600,
height: 480,
title: "个人QandA"
};
SP.UI.ModalDialog.showModalDialog(options);
}
用js调用这个函数吧，这个是sharepoint自己带的函数，使用请在webpart中引用sharepoint命名控件啊。

巴特西

Sharepoint 弹出消息提示框 .

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