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我有一个组名的 Infragistics WebDataGrid。我想在用户选择它时向组单元格添加一个工具提示,其中列出了与该组关联的医生。我创建了一个行选择事件,该事件在选择组行时获取医生的姓名。该方法如下,并在选择行时返回名称。当我将字符串分配给工具提示时,当您将鼠标悬停在单元格上时,工具提示不会显示。

protected void wdgMedGrp_RowSelected(object sender, Infragistics.Web.UI.GridControls.SelectedRowEventArgs e)
        {
            Infragistics.Web.UI.GridControls.SelectedRowCollection selectedRows = e.CurrentSelectedRows;
            int iMedicalGroupID = Convert.ToInt32(selectedRows[0].Items.FindItemByKey("ID").Value.ToString());

            //Get Doctor names for this group
            DataTable dtDoctors = new DataTable("Doctors");

            SqlConnection SqlConn = null;
            string strSqlConnection = ConfigurationManager.ConnectionStrings["CAP06"].ConnectionString;
            using (SqlConn = new SqlConnection(strSqlConnection))
            {
                using (SqlCommand SqlCmd = new SqlCommand("phyadmGetPhysicianNames", SqlConn))
                {
                    SqlCmd.CommandType = CommandType.StoredProcedure;
                    SqlCmd.Parameters.Add("@MedicalGroupID", SqlDbType.Int).Value = iMedicalGroupID;
                    SqlConn.Open();
                    using (SqlDataAdapter dataReturned = new SqlDataAdapter(SqlCmd))
                    {
                        dataReturned.Fill(dtDoctors);
                    }
                }
            }

            string strPhysicianNames = string.Empty;
            foreach(DataRow row in dtDoctors.Rows)
            {
               strPhysicianNames += row["PhysicianFullName"].ToString() + "\r\n";
            }

            selectedRows[0].Items.FindItemByKey("Name").Tooltip = strPhysicianNames;
        }

这是我的标记:

<ig:WebHierarchicalDataGrid runat="server" height="600px" width="875px" 
AutoGenerateBands="False" AutoGenerateColumns="False" DataKeyFields="ID"
DataMember="SqlDataSource3_DefaultView" StyleSetName="Windows7" ID="wdgMedGrp"
DataSourceID="WebHierarchicalDataSource2" Key="SqlDataSource3_DefaultView" 
OnRowAdded="wdgMedGrp_RowAdded" OnRowSelectionChanged="wdgMedGrp_RowSelected">
<Columns>
    <ig:BoundDataField DataFieldName="ID" Key="ID" Hidden="true">
        <Header Text="ID" />
        <header text="ID" />
    </ig:BoundDataField>
    <ig:BoundDataField DataFieldName="Name" Key="Name" Width="68%">
        <Header Text="Name" />
        <header text="Name" />
    </ig:BoundDataField>
    <ig:BoundDataField DataFieldName="IsVisible" Key="IsVisible" Width="22%">
        <Header Text="Is Visible?" />
        <header text="Is Visible?" />
    </ig:BoundDataField>
</Columns>
 <Behaviors>
    <ig:Filtering>
    </ig:Filtering>
    <ig:RowSelectors EnableInheritance="True" RowSelectorCssClass="groupRowSelectorWidth">
    </ig:RowSelectors>   
    <ig:Selection RowSelectType="Single" Enabled="true" CellClickAction="Row">
        <AutoPostBackFlags RowSelectionChanged="true" />
    </ig:Selection>     
 </Behaviors>   

为什么工具提示不显示?

谢谢。

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1 回答 1

2

我也有类似的需求。我通过为每一行创建另一个包含我想要的工具提示的隐藏列来解决它,然后在 InitializeRow 事件中设置工具提示,如下所示:

Protected void wdgMedGrp_InitializeRow(object sender, RowEventArgs e)
{
    try
    {
       e.Row.Items[1].Tooltip = e.Row.Items[2].Value.ToString();
    }
    catch (Exception){} // ignore any exceptions
}

效果很好。不利的一面是我必须为每条记录做一次,一次一个,这意味着我不能使用 SQL 调用中的 .Fill() 方法。

于 2015-08-26T04:47:09.277 回答