Sharepoint 列表 附件 小功能

ifuleyou

　　代码如下：
　　Page_Load方法



       cblattCase.Items.Clear();
for (int i = 0; i < item.Attachments.Count; i++)
{
cblattCase.Items.Add(new ListItem("<a href='" + GetSPListItemAttachmentUrl(item, i) + "' target='_black'>" + item.Attachments + "<a>", i.ToString()));
}
　　附件添加及删除




/// <summary>
/// 添加附件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnUploadCase_OnClick(object sender, EventArgs e)
{
string id = Request["id"];
if (id == null)
{
ShowErr("请先保存草稿");
return;
}
if (fudCase.FileBytes.Length == 0)
{
ShowErr("请先选择上传文件");
return;
}
//SPList list = SPContext.Current.Web.Lists["servicerequest"];

SPListItem item = null;
//case附件删除
item = list.Items.GetItemById(int.Parse(Request["id"]));
//case附件上传
for (int i = 0; i < item.Attachments.Count; i++)
{
if (fudCase.FileName == item.Attachments)
{
ShowErr("文件名重复！");
return;
}
}
item.Attachments.Add(fudCase.FileName, fudCase.FileBytes);
item.Update();
//刷新控件

cblattCase.Items.Clear();

for (int i = 0; i < item.Attachments.Count; i++)
{
cblattCase.Items.Add(new ListItem("<a href='" + GetSPListItemAttachmentUrl(item, i) + "' target='_black'>" + item.Attachments + "<a>", i.ToString()));
}
}
public static string GetSPListItemAttachmentUrl(SPListItem item, int index)
{
return item.Attachments.UrlPrefix + item.Attachments[index];
}
/// <summary>
/// 删除附件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnDelCase_OnClick(object sender, EventArgs e)
{
if (id == null)
{
ShowErr("请先保存草稿");
return;
}

SPListItem item = null;
//case附件删除
item = list.Items.GetItemById(int.Parse(Request["id"]));
List<string> attName = new List<string>();
if (item.Attachments.Count > 0)
{
int tmpIndex = 0;
foreach (ListItem lItem in cblattCase.Items)
{
if (lItem.Selected)
{
attName.Add(item.Attachments[tmpIndex]);
}
tmpIndex++;
}
for (int i = 0; i < attName.Count; i++)
{
item.Attachments.Delete(attName);
}
item.Update();
}
//刷新控件

cblattCase.Items.Clear();
for (int i = 0; i < item.Attachments.Count; i++)
{
cblattCase.Items.Add(new ListItem("<a href='" + GetSPListItemAttachmentUrl(item, i) + "' target='_black'>" + item.Attachments + "<a>", item.Attachments));
}
}
　　
　　前端代码:



           <tr>
<td class="padding" colspan="6" height="30">
<asp:FileUpload ID="fudCase" runat="server" CssClass="textboxCss1"  width="500"/>
<asp:Button ID="btnUploadCase" runat="server"  Text="上传附件" OnClick="btnUploadCase_OnClick" CssClass="textboxCss1" />
<asp:Button ID="btnDelCase" runat="server"  Text="删除附件" OnClick="btnDelCase_OnClick" CssClass="textboxCss1" />
</td>
</tr>
<tr>
<td style="padding:8px;" colspan="3">
<asp:CheckBoxList ID="cblattCase" runat="server" AutoPostBack="false"></asp:CheckBoxList>
</td>
</tr>