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[英]How to enable GridViewCommandColumn sorting on a DevExpress ASPxGridView?
[英]How to do sorting of field using DevExpress ASPxGridView
我有一個字段金額,該字段應顯示curreny +金額。 從那時起,我無法為fieldName提供'$'200,因此我將該字段設置為未綁定。 發生排序,但填充的數據不正確。 我的數量從40到500不等。但是在對降序顯示100和升序顯示99.9進行排序時,請幫助解決此問題。
//設計師
<dx:ASPxGridView ID="gridReports" runat="server" Width="100%" KeyFieldName="SID" ClientInstanceName="gridReports"
onpageindexchanged="gridReports_PageIndexChanged" onrowcommand="gridReports_RowCommand" AutoGenerateColumns="False" oncustomunboundcolumndata="gridReports_CustomUnboundColumnData" oncustomcolumndisplaytext="gridReports_CustomColumnDisplayText">
<SettingsBehavior EnableRowHotTrack="true" /> <SettingsPager AlwaysShowPager="true" Position="Bottom" PageSize="25" />
<Columns>
<dx:GridViewDataColumn CellStyle-HorizontalAlign="right" Width="24%" Caption="AMOUNT" VisibleIndex="5" UnboundType="Decimal" FieldName="ForeName" Settings-SortMode="Value">
</Columns>
<SettingsBehavior ConfirmDelete="True" /> <SettingsBehavior ConfirmDelete="True" EnableRowHotTrack="True" /> <SettingsPager AlwaysShowPager="True" PageSize="25"> </SettingsPager>
//碼
protected void gridReports_CustomUnboundColumnData(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewColumnDataEventArgs e)
{
if (e.Column.FieldName == "ForeName")
{
string currency = (string)e.GetListSourceFieldValue("DEFAULT_CURRENCY");
string amount = (string)e.GetListSourceFieldValue("AMOUNT");
e.Value = GTYPE(currency) + amount;
}
}
請不要在'gridReports_CustomColumnDisplayText'中給定值和displayText,但是排序沒有進行。我也將UnboundType更改為Integer和十進制。
還嘗試了此方法:
protected void gridReports_CustomColumnDisplayText(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewColumnDisplayTextEventArgs e)
{
if (e.Column.FieldName == "ForeName")
{
object currency = e.GetFieldValue("DEFAULT_CURRENCY");
object amount = e.GetFieldValue("AMOUNT");
e.DisplayText = ((string)GTYPE(currency.ToString()) + amount);
e.Value = Decimal.Parse(amount.ToString());
}
}
數據集中的Amount字段為字符串,因此,最低編號為1,最高編號為9,這導致了排序問題。 通過將“金額”字段轉換為十進制來解決此問題。
//Code added for sorting Amount field:
if (ds != null)
{
DataTable dtCloned = ds.Tables[0].Clone();
dtCloned.Columns["AMOUNT"].DataType = typeof(decimal);
foreach (DataRow row in ds.Tables[0].Rows)
{
dtCloned.ImportRow(row);
}
ds = null;
ds = new DataSet();
ds.Tables.Add(dtCloned);
}
直接將“金額”字段與網格視圖綁定:
<dx:GridViewDataColumn FieldName="AMOUNT" Caption="Amount" Width="100px" >
</dx:GridViewDataColumn>
要添加貨幣符號,請在ColumnDisplayText方法中綁定數據
protected void gridReports_CustomColumnDisplayText(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewColumnDisplayTextEventArgs e)
{
if (e.Column.FieldName == "AMOUNT")
{
object currency = e.GetFieldValue("DEFAULT_CURRENCY");
object amount = e.GetFieldValue("AMOUNT");
e.DisplayText = ((string)GTYPE(currency.ToString()) + amount);
}
}
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