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checkbox in commanditem template

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Grid

This is a migrated thread and some comments may be shown as answers.

MBEN asked on 02 Jun 2014, 11:39 PM

I have a checkbox in commanitem template.
I display the checkbox based on some values in the database and change the text of the checkbox accordingly.

On the first page load, my checkbox does not retain the values i set in the prerender event. After i do some postback (via the button in the itemtemplate) it displays the checkbox correctly. I set the grid in edit mode in my pre render event.

below is my code:

protected void rgFunds_PreRender(object source, EventArgs e)

{

Button btnPostTransaction = (Button)rgFunds.MasterTableView.GetItems(GridItemType.CommandItem)[0].FindControl("btnPostTransaction");

CheckBox chkAutoRebalance = (CheckBox)rgFunds.MasterTableView.GetItems(GridItemType.CommandItem)[0].FindControl("chkAutoRebalance");

//Puts the grid in editmode

if (!IsPostBack)

{

foreach (GridItem item in rgFunds.MasterTableView.Items)

{

if (item is GridEditableItem)

{

GridEditableItem editableItem = item as GridDataItem;

editableItem.Edit = true;

}

rgFunds.Rebind();

}

//Set the AutoRebalance flag

foreach (GridDataItem item in rgFunds.Items)

{

HtmlInputHidden _fundID = (HtmlInputHidden)item.FindControl("_fundID");

int OnOff = Int32.Parse(_fundID.Value);

chkAutoRebalance.Checked = OnOff == 1 ? true : false;

}

// Get the AutoRebalancing flag from plan settings

if (ShowPostTransactionButton && IsCurrentEmployee && _allocationType == FundAllocation.AllocationType.Rebalance)

{

DataTable dtAutoRebalanceFrequency = FundRebalance.GetAutoRebalanceFrequencyByPlan(base.PlanID, DateTime.Now);

if (dtAutoRebalanceFrequency.Rows.Count > 0)

{

AutoRebalanceFrequency = dtAutoRebalanceFrequency.Rows[0][FundRebalance.Fields.RebalanceFrequency].ToString();

if (dtAutoRebalanceFrequency.Rows[0][FundRebalance.Fields.RebalanceFrequencyID].ToString() == ((int)FundRebalance.AutoRebalanceFrequency.NotAllowed).ToString())

{

chkAutoRebalance.Visible = false;

chkAutoRebalance.Checked = false;

}

else

{

chkAutoRebalance.Visible = true;

chkAutoRebalance.Text = "Auto Rebalance (" + AutoRebalanceFrequency + ")";

}

else

{

chkAutoRebalance.Visible = false;

chkAutoRebalance.Checked = false;

}

Grid declaration:

<telerik:RadGrid ID="rgFunds" runat="server" AllowSorting="False" EnableViewState="false"

GridLines="Both" AllowMultiRowEdit="true" OnPreRender="rgFunds_PreRender" OnItemDataBound="rgFunds_ItemDataBound"

OnItemCommand="rgFunds_ItemCommand" OnNeedDataSource="rgFunds_NeedDataSource">

<MasterTableView TableLayout="Fixed" HierarchyDefaultExpanded="true" CommandItemDisplay="Bottom"

EditMode="InPlace" EnableNoRecordsTemplate="true">

<CommandItemTemplate>

<table width="100%">

<tr>

<td colspan="4" align="left">

<asp:CheckBox ID="chkAutoRebalance" runat="server" Visible="true" ForeColor="White"

OnCheckedChanged="chkAutoRebalance_CheckedChanged" />

</td>

<td align="right">

<asp:Button ID="btnPostTransaction" runat="server" Text="Post Transaction" CssClass="button"

CommandName="PostTransaction" />

</td>

</tr>

</table>

</CommandItemTemplate>

<Columns>

<telerik:GridTemplateColumn ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"

FooterStyle-HorizontalAlign="Left" UniqueName="InvestmentOptions" ReadOnly="true"

HeaderText="Investment Options">

<ItemTemplate>

<asp:Label ID="_fundName" runat="server" Text='<%# Eval("fundName")%>'></asp:Label>

<asp:CheckBox ID="_excludeFund" runat="server" Checked='<%# Eval("allowRebalanceExclude")%>'

Text="Exclude?" Visible='<%# Eval("allowRebalanceExclude")%>' />

<input type="hidden" id="_fundID" runat="server" />

<input type="hidden" id="_autoRebalanceFlag" runat="server" />

<input type="hidden" id="_allowRebalance" runat="server" />

</ItemTemplate>

<FooterTemplate>

<strong>Total must equal 100%</strong></FooterTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn ItemStyle-HorizontalAlign="Right" HeaderText="Current %"

HeaderStyle-Width="25%" ReadOnly="true" DataField="currentPercent" UniqueName="currentPercent">

<ItemTemplate>

<asp:Label ID="_currentPercent" runat="server" Text='<%# Eval("currentPercent", "{0:N2}%")%>'>

</asp:Label></ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn ItemStyle-HorizontalAlign="Right" UniqueName="futurePercent"

HeaderStyle-Width="25%" HeaderText="New %">

<ItemTemplate>

<asp:Label ID="_futurePercent" runat="server" Text='<%# Eval("futurePercent", "{0:N2}%")%>'></asp:Label>

</ItemTemplate>

<EditItemTemplate>

<asp:TextBox ID="txtNewPercent" runat="server" CssClass="percent" groupName="allocations"

Width="40px" onchange="SumGroup(this, false)" Text='<%# Eval("futurePercent")%>' />

%

<asp:RangeValidator ID="newPercentageRange" runat="server" ControlToValidate="txtNewPercent"

Type="Integer" CssClass="errormessagesmall" Display="None" />

<asp:CustomValidator ID="newPercentageIncrement" runat="server" ControlToValidate="txtNewPercent"

ClientValidationFunction="Mod_ClientValidate" CssClass="errormessagesmall" Display="None" />

<cc1:ValidatorCalloutExtender ID="newPercentageRangeCallout" runat="server" TargetControlID="newPercentageRange"

Width="235px" />

<cc1:ValidatorCalloutExtender ID="newPercentageIncrementCallout" runat="server" TargetControlID="newPercentageIncrement"

Width="235px" />

</EditItemTemplate>

<FooterTemplate>

<asp:TextBox ID="fundTotal" runat="server" CssClass="percent" onfocus="blur()" Enabled="false"

Font-Bold="true" ForeColor="Black" Width="40px" />

%

<asp:CompareValidator ID="totalEqual100" runat="server" ControlToValidate="fundTotal"

ValueToCompare="100" Operator="Equal" CssClass="errormessagesmall" Display="None"

ErrorMessage="New allocations must total 100%." />

<asp:RequiredFieldValidator ID="fundTotalRequired" runat="server" ControlToValidate="fundTotal"

Display="None" Visible="false" ErrorMessage="You <em>must</em> enter an allocation." />

<cc1:ValidatorCalloutExtender ID="fundTotalRequiredCallout" runat="server" TargetControlID="fundTotalRequired"

Width="235px" />

<cc1:ValidatorCalloutExtender ID="totalEqual100Callout" runat="server" TargetControlID="totalEqual100"

Width="235px" />

</FooterTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

4 Answers, 1 is accepted

answered on 03 Jun 2014, 03:44 PM

Shinu,

The issue I am having is with the visibility of the checkbox in this part of the code.

I am setting the visibility of the checkbox and changing the text but that is not reflected on the first page load. It only shows up after a postback.

// Get the AutoRebalancing flag from plan settings
            if (ShowPostTransactionButton && IsCurrentEmployee && _allocationType == FundAllocation.AllocationType.Rebalance)
            {
                DataTable dtAutoRebalanceFrequency = FundRebalance.GetAutoRebalanceFrequencyByPlan(base.PlanID, DateTime.Now);

                if (dtAutoRebalanceFrequency.Rows.Count > 0)
                {
                    AutoRebalanceFrequency = dtAutoRebalanceFrequency.Rows[0][FundRebalance.Fields.RebalanceFrequency].ToString();

                    if (dtAutoRebalanceFrequency.Rows[0][FundRebalance.Fields.RebalanceFrequencyID].ToString() == ((int)FundRebalance.AutoRebalanceFrequency.NotAllowed).ToString())
                    {
                        chkAutoRebalance.Visible = false;
                        chkAutoRebalance.Checked = false;
                    }
                    else
                    {
                        chkAutoRebalance.Visible = true;
                        chkAutoRebalance.Text = "Auto Rebalance (" + AutoRebalanceFrequency + ")";
                    }
                }
                else
                {
                    chkAutoRebalance.Visible = false;
                    chkAutoRebalance.Checked = false;
                }
            }