Questions on UI for ASP.NET AJAX Forum

11 answers

2.2K+ views

Hi,

I have a radgrid with filter on field set on. I need to be able to set the filter of a specific field to a fixed value and enable the filter field. But this is user dependant.

How can I accomplish this?

My radgrid :

<telerik:RadGrid ID="grdCodes" GridLines="None" runat="server" PageSize="20" AllowPaging="True" AutoGenerateColumns="False" AllowFilteringByColumn="true"

OnInsertCommand="grdCodes_InsertCommand" OnUpdateCommand="grdCodes_UpdateCommand"

OnNeedDataSource="grdCodes_NeedDataSource" OnItemDataBound="grdCodes_ItemDataBound" OnItemCreated="grdCodes_ItemCreated" OnPreRender="grdCodes_PreRender" >

<MasterTableView CommandItemDisplay="Top" HorizontalAlign="NotSet" EditMode="InPlace" AutoGenerateColumns="False">

<Columns>

<telerik:GridEditCommandColumn UniqueName="EditColumn" ButtonType="ImageButton" ItemStyle-Width="10px" />

<telerik:GridTemplateColumn HeaderText="System" ItemStyle-Width="20%" SortExpression="system" UniqueName="system" DataField="system">

<FilterTemplate>

<telerik:RadComboBox ID="ddlSystemFilter" runat="server" OnClientSelectedIndexChanged="FilterSystemIndexChanged" AppendDataBoundItems="true" SelectedValue='<%# ((GridItem)Container).OwnerTableView.GetColumn("system").CurrentFilterValue %>'>

<Items>

<telerik:RadComboBoxItem Text="All" />

</Items>

</telerik:RadComboBox>

<telerik:RadScriptBlock ID="RadScriptBlock2" runat="server">

<script type="text/javascript">

function FilterSystemIndexChanged(sender, args) {

var tableView = $find("<%# ((GridItem)Container).OwnerTableView.ClientID %>");

tableView.filter("system", args.get_item().get_value(), "EqualTo");

}

</script>

</telerik:RadScriptBlock>

</FilterTemplate>

<ItemTemplate>

<%# CartaMundi.BusinessLogic.Codes.GetDescription(cmWeb.Classes.Constants.SYSTEM_GENERAL,"SYSTEM", DataBinder.Eval(Container.DataItem, "system")) %>

</ItemTemplate>

<EditItemTemplate>

<telerik:RadComboBox runat="server" ID="ddlSystem" ></telerik:RadComboBox>

</EditItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn DataField="field_name" HeaderStyle-Width="20%" HeaderText="Field name" SortExpression="field_name" UniqueName="field_name" ShowFilterIcon="false" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true">

<ColumnValidationSettings EnableRequiredFieldValidation="true">

<RequiredFieldValidator Text="<img src='/CMIT/Images/Warning.gif' border='0'>" Display="Dynamic" ToolTip="Field name is required." ErrorMessage="-Field name is required." ></RequiredFieldValidator>

</ColumnValidationSettings>

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="field_value" HeaderStyle-Width="20%" HeaderText="Field value" SortExpression="field_value" UniqueName="field_value" ShowFilterIcon="false" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true">

<ColumnValidationSettings EnableRequiredFieldValidation="true">

<RequiredFieldValidator Text="<img src='/CMIT/Images/Warning.gif' border='0'>" Display="Dynamic" ToolTip="Field value is required." ErrorMessage="-Field value is required." ></RequiredFieldValidator>

</ColumnValidationSettings>

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="description" HeaderStyle-Width="40%" HeaderText="Description" SortExpression="description" UniqueName="description" ShowFilterIcon="false" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true" >

<ColumnValidationSettings EnableRequiredFieldValidation="true">

<RequiredFieldValidator Text="<img src='/CMIT/Images/Warning.gif' border='0'>" Display="Dynamic" ToolTip="Description is required." ErrorMessage="-Description is required." ></RequiredFieldValidator>

</ColumnValidationSettings>

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

<ClientSettings AllowKeyboardNavigation="true"></ClientSettings>

</telerik:RadGrid>

The fields that can have fixed values is the GridTemplateColumn 'System' and the GridBoundColumn 'field_value'

I was able to set the default value but there is was no option to set the field enabled.

protected void grdCodes_PreRender(object sender, EventArgs e)

{

if (BLogic.UserRights.Authorised(CurrentUser, "ProjectGroups", "*DSP", Classes.Constants.SYSTEM_DESIGN ))

{

grdCodes.MasterTableView.FilterExpression = "(Convert.ToString(it[\"system\"]) = \"" + cmWeb.Classes.Constants.SYSTEM_DESIGN + "\") AND (it[\"field_name\"].ToString().Contains(\"PRJGROUPS\"))";

GridColumn column = grdCodes.MasterTableView.GetColumnSafe("system");

column.CurrentFilterFunction = GridKnownFunction.EqualTo;

column.CurrentFilterValue = cmWeb.Classes.Constants.SYSTEM_DESIGN;

column = grdCodes.MasterTableView.GetColumnSafe("field_name");

column.CurrentFilterFunction = GridKnownFunction.EqualTo;

column.CurrentFilterValue = "PRJGROUPS";

grdCodes.MasterTableView.Rebind();

}

There are users that may not be able to select other values in the filter and have a fixed value. Other user must be are able to use the filter as they wish.

The part of the code '(BLogic.UserRights.Authorised(CurrentUser, "ProjectGroups", "*DSP", Classes.Constants.SYSTEM_DESIGN ))' decides if the users has limitid selection options.

Can this be done?

Kind regards

Suzy

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