I have a GridView which with a CheckBox in a TemplateField.
When I check something and hit the submit button, the items that I have checked are not check on the postback.
I tried using EnableViewState and that did not help.
How can this be fixed?
<asp:Button ID="btnSubmit" runat="server" Text="Submit" />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField HeaderText="SELECT">
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server"/>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="ICAO" HeaderText="ICAO" />
<asp:BoundField DataField="IATA" HeaderText="IATA" />
<asp:BoundField DataField="AIRPORT_NAME" HeaderText="AIRPORT NAME" />
<asp:BoundField DataField="CITY" HeaderText="CITY" />
<asp:BoundField DataField="COUNTRY" HeaderText="COUNTRY" />
<asp:BoundField DataField="REVISED_DATE" HeaderText="REVISED DATE" />
<asp:BoundField DataField="EMAIL_DATE" HeaderText="EMAIL DATE" />
</Columns>
</asp:GridView>
You need to override LoadViewState and SaveViewState methods to maintain the selection.
https://web.archive.org/web/20211020153240/https://www.4guysfromrolla.com/articles/110205-1.aspx#postadlink
Related
I am using a button and a grid inside the update panel, when user clicks on that button the result is updated in this grid
But this button is not raising any click event due to which code is not able to hit code behind.
following is the HTML code I am using
<div id="DivGridPendingCRSeeMore" class="editableDialogContentPanel" style="display: none">
<asp:UpdatePanel ID="RecentGridPendingCRSeeMore" runat="server">
<ContentTemplate>
<asp:Button ID="ButtonRecentGridPendingCRSeeMoreSearch" runat="server" Text="Search"
OnClick="ButtonRecentGridPendingCRSeeMoreSearch_Click" />
<asp:GridView ID="GridPendingCRSeeMore" runat="server" AllowSorting="true" AllowPaging="true"
PageSize="20" AutoGenerateColumns="false" PagerSettings-Visible="false" RowStyle-CssClass="gridDataRow"
CssClass="grid">
<Columns>
<asp:HyperLinkField HeaderText="Request ID" DataTextField="Request_ID" SortExpression="Request_ID"
DataNavigateUrlFields="Request_ID" DataNavigateUrlFormatString="ChangeRequestDetails.aspx?RequestID={0}"
HeaderStyle-HorizontalAlign="Left" />
<asp:BoundField HeaderText="Territory ID" DataField="Territory_ID" SortExpression="Territory_ID"
HeaderStyle-HorizontalAlign="Left" />
<asp:BoundField HeaderText="Submitted By" DataField="Submitted_By_Name" SortExpression="Submitted_By_Name"
ItemStyle-Wrap="false" HeaderStyle-HorizontalAlign="Left" />
<asp:BoundField HeaderText="Owner" DataField="owner_name" SortExpression="owner_name"
ItemStyle-Wrap="false" HeaderStyle-HorizontalAlign="Left" />
<asp:BoundField HeaderText="Type" DataField="Request_Type" SortExpression="Request_Type"
ItemStyle-Wrap="false" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" />
<asp:BoundField HeaderText="Status" DataField="CR_Status" SortExpression="CR_Status"
ItemStyle-Wrap="false" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center" />
<asp:BoundField HeaderText="Date Submitted" DataField="Submit_Date" SortExpression="Submit_Date"
DataFormatString="{0:MM/dd/yyy}" HtmlEncode="false" HeaderStyle-HorizontalAlign="Center"
ItemStyle-HorizontalAlign="Center" />
<asp:BoundField HeaderText="Description (ID or Name)" DataField="Description" SortExpression="Description"
ItemStyle-Wrap="false" HeaderStyle-HorizontalAlign="Left" />
</Columns>
</asp:GridView>
<UC1:PagerControl ID="HomePendingCRPager" runat="server" />
</ContentTemplate>
</asp:UpdatePanel>
</div>
Following is the code behind handler
Protected Sub ButtonRecentGridPendingCRSeeMoreSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonRecentGridPendingCRSeeMoreSearch.Click
End Sub
Add Trigger in UpdatePanel like this
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ButtonRecentGridPendingCRSeeMoreSearch" EventName="Click"/>
</Triggers>
I have a grid view which display records by reading the data from a local database. I want to display a button called view with each record displayed. Simply meaning in each row there should be an asp.net button called view Details.
Here is my grid view code:
<asp:GridView ID="ItemView" runat="server" AllowPaging="True"
AutoGenerateColumns="False" CssClass="list" DataKeyNames="ItemID"
DataSourceID="ADDataSource" GridLines="Both" Width="215px">
<Columns>
<asp:BoundField DataField="itemID" HeaderText="Item ID" />
<asp:BoundField DataField="Item Name" HeaderText="Item Name" />
<asp:BoundField DataField="Item Brand" HeaderText="Item Brand" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
</Columns>
</asp:GridView>
I have added a button to delete records and edit records through common field property, but how do i add my own button called view to display in each row as the other 2 buttons.
Thank you.
I managed do it myself.
<asp:BoundField DataField="topic" HeaderText="Topic Name" />
<asp:BoundField DataField="Brand" HeaderText="Vehicle Brand" />
<asp:BoundField DataField="Model" HeaderText="Vehicle Model" />
<asp:BoundField DataField="Year" HeaderText="Vehicle Year" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:Button ID="viewDetails" runat="server" Text="View" />
</ItemTemplate>
</asp:TemplateField>
I'm building a GridView based on what is passed on the previous page querystring.
Is there a way to display a message saying 'no records found' if the GridView isn't populated? i.e. the query produces no records to populate the GridView.
code:
<div class="centergrid">
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" CssClass="bookgridview">
<Columns>
<asp:TemplateField HeaderText="Choose">
<ItemTemplate>
<asp:HyperLink ID="lnkSelect" runat='server' NavigateUrl='<%# String.Format("~/bookingform.aspx?ID={0}", Eval("ScheduleId")) %>'>Book</asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="TName" HeaderText="Name" SortExpression="TName" />
<asp:BoundField DataField="SDate" HeaderText="Date" SortExpression="SDate" DataFormatString="{0:d}" />
<asp:BoundField DataField="STime" HeaderText="Time" SortExpression="STime" />
<asp:BoundField DataField="TPriceadult" HeaderText="Price (Adult)"
SortExpression="TPriceadult" DataFormatString="{0:C}" />
<asp:BoundField DataField="TPricesenior" HeaderText="Price (Student/Senior)"
SortExpression="TPricesenior" DataFormatString="{0:C}" />
<asp:BoundField DataField="TPricechild" HeaderText="Price (Child)"
SortExpression="Tpricechild" DataFormatString="{0:C}" />
<asp:BoundField DataField="TDuration" HeaderText="Duration"
SortExpression="TDuration" />
<asp:BoundField DataField="ScheduleId" HeaderText="ScheduleId"
SortExpression="ScheduleId" Visible="False" />
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ChinatowndbConnString %>"
SelectCommand="SELECT * FROM [vwSchedule] Where TourId=#tid">
<SelectParameters>
<asp:QueryStringParameter DbType="Int32" Name="tid" QueryStringField="tourid" />
</SelectParameters>
</asp:SqlDataSource>
Is there a way to display a message saying 'no records found' if the
GridView isn't populated?
Yes, with the EmptyDataTemplate.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" CssClass="bookgridview">
<emptydatarowstyle backcolor="LightBlue"
forecolor="Red"/>
<emptydatatemplate>
<asp:image id="NoDataImage"
imageurl="~/images/Image.jpg"
alternatetext="No Image"
runat="server"/>
No records found.
</emptydatatemplate>
<Columns>
<asp:TemplateField HeaderText="Choose">
<ItemTemplate>
<asp:HyperLink ID="lnkSelect" runat='server' NavigateUrl='<%# String.Format("~/bookingform.aspx?ID={0}", Eval("ScheduleId")) %>'>Book</asp:HyperLink>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="TName" HeaderText="Name" SortExpression="TName" />
<asp:BoundField DataField="SDate" HeaderText="Date" SortExpression="SDate" DataFormatString="{0:d}" />
<asp:BoundField DataField="STime" HeaderText="Time" SortExpression="STime" />
<asp:BoundField DataField="TPriceadult" HeaderText="Price (Adult)"
SortExpression="TPriceadult" DataFormatString="{0:C}" />
<asp:BoundField DataField="TPricesenior" HeaderText="Price (Student/Senior)"
SortExpression="TPricesenior" DataFormatString="{0:C}" />
<asp:BoundField DataField="TPricechild" HeaderText="Price (Child)"
SortExpression="Tpricechild" DataFormatString="{0:C}" />
<asp:BoundField DataField="TDuration" HeaderText="Duration"
SortExpression="TDuration" />
<asp:BoundField DataField="ScheduleId" HeaderText="ScheduleId"
SortExpression="ScheduleId" Visible="False" />
</Columns>
</asp:GridView>
Alternatively, you can use the built-in UI for the empty data row by setting the EmptyDataText property instead of this property.
I have a gridview in my asp.net page that has one template field for editing a yearly budget. The code follows:
<Columns>
<asp:BoundField DataField="f_year" HeaderText="Year" ReadOnly="True" `enter code here`>
<ItemStyle Width="35px" />
</asp:BoundField>
<asp:BoundField DataField="o_orgcode" HeaderText="Cost Center " ReadOnly="True" />
<asp:BoundField DataField="o_orgdesc" HeaderText="CostCenterDesc " ReadOnly="True" />
<asp:BoundField DataField="s_subobject" HeaderText="Account " ReadOnly="True" />
<asp:BoundField DataField="s_subdescrip" HeaderText="AccountDesc" ReadOnly="True" />
<asp:TemplateField HeaderText="Initial Appropriation">
<EditItemTemplate>
<asp:Label ID="Label2" runat="server" Text="$"></asp:Label>
<asp:TextBox ID="txtEditItemApprAmt" runat="server" Text='<%# Bind("b_budgetamt", "{0:f}") %>' CssClass="boxright"></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:TextBox ID="txtEditItemApprAmt2" runat="server" Text='<%# Bind("b_budgetamt", "{0:f}") %>' CssClass="boxright"></asp:TextBox>
</ItemTemplate>
<ItemStyle HorizontalAlign="Right" VerticalAlign="Middle" />
</asp:TemplateField>
<asp:BoundField DataField="b_initials" ReadOnly="True" >
<ItemStyle Width="35px" />
</asp:BoundField>
When my page loads the one template I field I have will automatically appear as a databound text box. I do this because there are multiple money figures to enter at one time and I believe this to be a better function for me site. I want to be able to click an external (meaning external to the gridview) button to loop through the gridview and change those values in my database. Anyone know how to do this, I have not been able to find on the internet an example of this?? Thanks!
You can do it this way,
foreach(GridVieRrow row in gv.rows)
{
TextBox txtEditItemApprAmt = row.FindControl("txtEditItemApprAmt");
string ApprAmt = txtEditItemApprAmt.Text;
txtEditItemApprAmt.Text = someTextFunctionOrVariable;
}
I am really frustrated to find a solution for my scenario. I have two gird when First grid is used show the shop information and the second grid is used to edit the offers related to the shop information. When the users edit the second grid i will just update the text box values related to the grid selection row. in my code behind file i can see the data fetching from the grid and assigning into the text boxes but when the function call (imgEdit_click) finished the page does not show the values. Editing functionality can be done in many ways but my scenario is what i explained earlier . I have the checked page there is no Postback action has been called after the method I could not find the solution can anyone help me to figure it out.
Following are my source and code behind codes.
My design Source :
<div class="field">
<asp:TextBox ID="txtareaOfferDesc" runat="server" TextMode="MultiLine" ></asp:TextBox>
</div>
<div class="field">
<asp:TextBox ID="txtTimeStarts" runat="server" CssClass="textfield"></asp:TextBox>
<cc1:CalendarExtender
ID="CalendarExtender2"
runat="server"
TargetControlID="txtTimeStarts"
CssClass="CalendarCSS">
</cc1:CalendarExtender>
<div class="datefld">
<label class="name">Offer end date/time (optional)</label>
<div class="field">
<asp:TextBox ID="txtTimeEnd" runat="server" CssClass="textfield"></asp:TextBox>
<cc1:CalendarExtender ID="CalendarExtender4" runat="server" TargetControlID="txtTimeEnd"
CssClass="CalendarCSS">
</cc1:CalendarExtender> `
<asp:GridView ID="gvShopDeal" runat="server" AutoGenerateColumns="false"
CssClass="tblexistoffer" DataKeyNames="ShopID" AllowPaging="True"
AllowSorting="True">
<Columns>
<asp:TemplateField>
<HeaderTemplate >
<asp:CheckBox ID="chkHeader" runat="server" />
<asp:Label ID="lblSelectAll" Text="Select All" runat="server"></asp:Label>
</HeaderTemplate>
<ItemTemplate >
<asp:CheckBox ID="chkRow" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="ShopID" HeaderStyle-Width="10%" HeaderText="Shop ID" />
<asp:BoundField DataField="ShopName" HeaderStyle-Width="40%" HeaderText="Shop Name" />
<asp:BoundField DataField="Street" HeaderStyle-Width="40%" HeaderText="Street" />
<asp:BoundField DataField="City" HeaderText ="City" />
</Columns>
</asp:GridView>
<asp:Button ID="btnCreateDeal" runat="server" Text="Create Offer"
CssClass="grnbtn" OnClientClick="return CheckDealValidation(this)" onclick="btnCreateDeal_Click"></asp:Button>
<asp:Button ID="btnDefCancel" runat="server" Text="Cancel" CssClass="greybtn"></asp:Button>
<asp:UpdatePanel ID="UpdateExistingOffer" runat="server">
<ContentTemplate>
<asp:GridView ID="gvExistingOffers" runat="server" CssClass="tblexistoffer"
AutoGenerateColumns="false" DataKeyNames="OfferID" AllowPaging="True"
AllowSorting="True">
<Columns>
<asp:BoundField DataField="OfferID" HeaderText="OfferID" />
<asp:BoundField DataField="Description" HeaderText="OfferName" />
<asp:BoundField DataField="Status" HeaderText="Status" />
<asp:BoundField DataField="OfferType" HeaderText="OfferType" />
<asp:BoundField DataField="StartDate" HeaderText="StartDate">
<ItemStyle CssClass="Hide" />
<HeaderStyle CssClass="Hide" />
</asp:BoundField>
<asp:BoundField DataField="EndDate" HeaderText="EndDate" >
<ItemStyle CssClass="Hide" />
<HeaderStyle CssClass="Hide" />
</asp:BoundField>
<asp:TemplateField HeaderText="Edit" HeaderStyle-Width="5%">
<ItemTemplate>
<asp:ImageButton ID="imgbtnEdit" ImageUrl="~/Merchant/images/edit.jpg" runat="server" Width="25" Height="25" onclick="imgbtnEdit_Click" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
Code Behind File :
protected void imgbtnEdit_Click(object sender, ImageClickEventArgs e)
{
ImageButton btndetails = sender as ImageButton;
GridViewRow gvrow = (GridViewRow)btndetails.NamingContainer;
fferIDForShop = Convert.ToInt32(gvExistingOffers.DataKeys[gvrow.RowIndex].Value);
ShopList objShopID = ShopService.GetShopID(OfferIDForShop);
(txtareaOfferDesc.Text) = gvrow.Cells[1].Text.Trim();
txtTimeStarts.Text = gvrow.Cells[4].Text;
txtTimeEnd.Text = gvrow.Cells[5].Text;
}
Thanks
Vijay
Issue is because textboxes are out of Update Panel, So just put everything in update panel it will start functioning or just comment out update panel and then try the same thing.