我有一个处理批量编辑模式的aspxgridview。 该方案是当我更改产品ID 列值时， Version Id 列的组合框将重新填充与产品对应的版本。一切都很好。产品正确填充以及版本，但在其默认值上显示valuefield而不是textfield，当我尝试再次重新填充产品，以便版本将级联它似乎没关系。只是使用显示valuefield而不是textfield的默认值。任何帮助将非常感激。谢谢。请参阅下面的代码。
的JavaScript
<script type="text/javascript">
var curentEditingIndex;
var lastCountry = null;
var isCustomCascadingCallback = false;
function CountriesCombo_SelectedIndexChanged(s, e) {
lastCountry = s.GetValue();
isCustomCascadingCallback = true;
RefreshData(lastCountry);
}
function CitiesCombo_EndCallback(s, e) {
if (isCustomCascadingCallback) {
if (s.GetItemCount() > 0)
sampleGrid2.batchEditApi.SetCellValue(curentEditingIndex, "chndtl_verid", s.GetItem(0).value);
isCustomCascadingCallback = false;
}
}
function OnBatchEditStartEditing(s, e) {
curentEditingIndex = e.visibleIndex;
var currentCountry = sampleGrid2.batchEditApi.GetCellValue(curentEditingIndex, "chndtl_prodid");
if (currentCountry != lastCountry && e.focusedColumn.fieldName == "chndtl_verid" && currentCountry != null) {
lastCountry = currentCountry;
RefreshData(currentCountry);
}
}
function RefreshData(countryValue) {
hf.Set("CurrentCountry", countryValue);
version_editor.PerformCallback();
}
</script>
的SqlDataSource
<asp:SqlDataSource ID="Product" runat="server" ConnectionString="<%$ ConnectionStrings:DDS %>"
SelectCommand="SELECT [p_pcode], [p_pname] FROM [product] WHERE ([p_stat] = @p_stat) ORDER BY [p_pname]">
<SelectParameters>
<asp:Parameter DefaultValue="A" Name="p_stat" Type="String" />
<asp:SessionParameter DefaultValue="" Name="p_advcde" SessionField="advcde"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="Version" runat="server" ConnectionString="<%$ ConnectionStrings:DDS %>"
SelectCommand="SELECT [v_matid], [v_version] FROM [version] WHERE (v_vpcode = @v_vpcode) ORDER BY [v_version]">
<SelectParameters>
<asp:Parameter DefaultValue="" Name="v_vpcode" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
前端
<dx:ASPxGridView ID="ASPxGridView2" ClientInstanceName="sampleGrid2" runat="server"
AutoGenerateColumns="False" DataSourceID="fordtl" Theme="Material" KeyFieldName = "chndtl_id"
Font-Size="11px" CssClass="ChangeEdit" OnCellEditorInitialize="sampleGrid2_CellEditorInitialize">
<SettingsEditing Mode="Batch"></SettingsEditing>
<dx:GridViewDataComboBoxColumn FieldName="chndtl_prodid">
<PropertiesComboBox EnableCallbackMode="true" CallbackPageSize="30" DataSourceID="Product" ValueField="p_pcode" TextField="p_pname" ValueType="System.Int32">
<ClientSideEvents SelectedIndexChanged="CountriesCombo_SelectedIndexChanged" />
</PropertiesComboBox>
</dx:GridViewDataComboBoxColumn>
<dx:GridViewDataTextColumn FieldName="chndtl_prod" visible="false"
ShowInCustomizationForm="True" VisibleIndex="4">
<SettingsHeaderFilter>
<DateRangePickerSettings EditFormatString="" />
</SettingsHeaderFilter>
</dx:GridViewDataTextColumn>
<dx:GridViewDataTextColumn FieldName="chndtl_version" visible="true"
ShowInCustomizationForm="True" VisibleIndex="5" >
</dx:GridViewDataTextColumn>
<dx:GridViewDataComboBoxColumn FieldName="chndtl_verid" ShowInCustomizationForm="True" VisibleIndex="6" >
<PropertiesComboBox EnableCallbackMode="true" OnItemRequestedByValue="OnItemRequestedByValue"
OnItemsRequestedByFilterCondition="OnItemsRequestedByFilterCondition" CallbackPageSize="30"
TextField = "v_version" ValueField = "v_matid" ValueType ="System.Int32">
</PropertiesComboBox>
</dx:GridViewDataComboBoxColumn>
</dx:ASPxGridView>
后端
Protected Sub sampleGrid2_CellEditorInitialize(ByVal sender As Object, ByVal e As ASPxGridViewEditorEventArgs)
If e.Column.FieldName = "chndtl_prodid" Then
e.Editor.ClientInstanceName = "product_editor"
Dim cmb_prod As ASPxComboBox = CType(e.Editor, ASPxComboBox)
cmb_prod.DataSourceID = "Product"
cmb_prod.ValueField = "p_pcode"
cmb_prod.TextField = "p_pname"
cmb_prod.ClientInstanceName = "product_editor"
cmb_prod.ValueType = GetType(Integer)
cmb_prod.DataBindItems()
End If
If e.Column.FieldName <> "chndtl_verid" Then
Return
End If
Dim editor = CType(e.Editor, ASPxComboBox)
editor.ClientInstanceName = "version_editor"
editor.TextField = "v_version"
editor.ValueField = "v_matid"
editor.ValueType = GetType(String)
editor.DataBindItems()
editor.ClientSideEvents.EndCallback = "CitiesCombo_EndCallback"
End Sub
Protected Sub OnItemsRequestedByFilterCondition(ByVal source As Object, ByVal e As ListEditItemsRequestedByFilterConditionEventArgs)
Dim comboBox As ASPxComboBox = DirectCast(source, ASPxComboBox)
Dim country As Integer = Me.GetCurrentCountry()
Version.SelectParameters.Clear()
Version.SelectParameters.Add("filter", TypeCode.String, String.Format("%{0}%", e.Filter))
Version.SelectParameters.Add("startIndex", TypeCode.Int32, (e.BeginIndex + 1).ToString())
Version.SelectParameters.Add("endIndex", TypeCode.Int32, (e.EndIndex + 1).ToString())
If country <> -1 Then
Version.SelectParameters.Add("v_vpcode", TypeCode.Int32, country.ToString())
Version.SelectCommand = "SELECT [v_matid], [v_version] FROM (select [v_matid], [v_version], row_number() over (order by t.[v_matid]) as [rn] from [version] as t where ([v_version] LIKE @filter And [v_vpcode] = @v_vpcode)) as st where st.[rn] between @startIndex and @endIndex"
Else
Version.SelectCommand = "SELECT [v_matid], [v_version] FROM (select [v_matid], [v_version], row_number() over (order by t.[v_matid]) as [rn] from [version] as t where ([v_version] LIKE @filter)) as st where st.[rn] between @startIndex and @endIndex"
End If
comboBox.DataSource = Version
comboBox.ValueField = "v_matid"
comboBox.TextField = "v_version"
comboBox.ValueType = GetType(String)
comboBox.DataBindItems()
End Sub
Protected Sub OnItemRequestedByValue(ByVal source As Object, ByVal e As ListEditItemRequestedByValueEventArgs)
If e.Value Is Nothing Then
Return
End If
Dim comboBox As ASPxComboBox = DirectCast(source, ASPxComboBox)
Version.SelectParameters.Clear()
Version.SelectCommand = "SELECT [v_matid], [v_version] FROM [version] WHERE (v_vpcode = @v_vpcode) ORDER BY [v_version]"
Version.SelectParameters.Add("v_vpcode", TypeCode.String, e.Value.ToString())
Version.DataBind()
comboBox.DataSource = Version
comboBox.ValueType = GetType(String)
comboBox.ValueField = "v_matid"
comboBox.TextField = "v_version"
comboBox.DataBind()
End Sub
Private Function GetCurrentCountry() As Integer
'INSTANT VB NOTE: The variable id was renamed since Visual Basic does not handle local variables named the same as class members well:
Dim id_Renamed As Object = Nothing
If hf.TryGet("CurrentCountry", id_Renamed) Then
Return Convert.ToInt32(id_Renamed)
End If
Return -1
End Function