Forms Data Controls :: How To Create Template Controls Inside A Gridview At Run Time
Sep 17, 2010i am creating a grid view at run time.now i want to create controls inside the gridview at run time itself,and how to Bind/Eval it.
View 5 Repliesi am creating a grid view at run time.now i want to create controls inside the gridview at run time itself,and how to Bind/Eval it.
View 5 RepliesOnSelectedIndexChanged event for the dropdown is the fired.
I have set the autopost back value = "true", EnableViewState ="true" for page tag and gridview tag.
I am trying to grab the UID of each row on botton click. However in my code behind I am only able to get the first row.
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I am brand new to programing and to ASP.net and I have a feeling I am really close to getting this.
I have been asking this for a long time.But the answer what i get is not want i need.I have a gridview with two template text box (t1 and t2) inside gridview and four textboxes outside the gridview on the form (txt1,txt2,txt3,txt4).All these textboxes allow only integer value to be entered.What i need is to get the total of all these textboxes (ie,template textboxes as well as textboxes outside gridview) in a textbox named Total at the same time we enter values in a textbox.Also if i change the value of a textbox later that too should be reflected in the Total textbox .I know how to calculate the total of the textboxes outside the gridview.But i need the total of all textboxes including template as well as textboxes outside simultaneously
View 4 RepliesI have a text box placed inside a gridview(template) . I need to update its value by a dropdown list event (Selected Item Changed event) placed in the same gridVew. But The problem is that , I need to update the text box of the same row the dropdown list (whose textChange Event haas been fired)
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I have visual 2010 with net 3.5 web app. I was implementing EntityFramework in my project and added a gridview to a entity source control. It worked ok, with select, update, and delete buttons enabled on the grid. But then, i needed to add a template field bound to a Foreign table, so my users select value from a list instead of writing the code. After that, my app fires error when i delete. I tried everything, inclue dakeyNames, write code on my RowDeleting, RowDeleted, RowCommand, but error persists.
Now, i can delete the row, but it then i get the error Object reference not set to an instance of an object If i implemente delete code on RowCommand i get the error: Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries.
I hav a gridview in which i display the project name,created date,Start time ,end time ,total hours along with the task id field which is visible=false.
My starttime and endtime format is 2010-10-13 03:00:00,but i want to display these two fields in dropdownlist ie.,only i want to display the HH:MM:SS in dropdown so that when the user changes the time it should be automatically be reflected in the total hours(6:0) field after updating.pls tell me what i have to do to bring the Hours ,minutes and seconds in dropdownlist into the cells of gridview with the value in database ,how to write the code.
is it possible ontextchange event create new row in asp.net c#.if it is possible plz let me know
View 5 Repliesin my website there is a module in which i m fetching the data of present students in the gridview and i m entering there marks in the gridview textbox column (created by using item template)...I want to add required field validation to the textbox columns so that after clicking the submit button there should be an error message displayed if any of the textbox is empty...
View 1 RepliesI want to create input inside gridview, the id of the input is set by me. I do want to use HiddenField control because when generating the id of the control, it will set id to gridview_ctrl.....
The input looks like this: <input id="myid01" value="myvalue" type="hidden">. Note that id is generate by me in the code behind.
What I want to do is to put a "(reported as invalid)" after the name in the GridView. However, I can't figure out how I can do this, or whether or not I should actually do it in the .aspx file. The field that I am going to check for validity is called invalid, and is a bit. Here's the GridView:
<asp:gridview id="grid" runat="server" datasourceid="sql" autogeneratecolumns="false" useaccessibleheader="true" allowPaging="true" pageSize="10">
<columns>
<asp:BoundField datafield="name" headertext="Name" />
<asp:TemplateField headertext="Link">
<itemtemplate>
<a target="_blank" href="<%# Eval("link") %>"><%# Eval("link") %></a>
</itemtemplate>
</asp:TemplateField>
<asp:BoundField datafield="description" headertext="Description" />
</columns>
</asp:gridview>
On update the dropdown value shows NULL in database : here's structure for my gridview
<asp:TemplateField HeaderText="Construction Phase" SortExpression="Phase_Name">
<EditItemTemplate>
<asp:DropDownList ID="EditedDropDownInGrid" runat="server" CssClass="form-control" DataSourceID="PhaseSQLDataSource" DataTextField="pp_name" DataValueField="pp_id">
</asp:DropDownList>
</EditItemTemplate>
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It updates other controls in gridview but does not update my selected dropdowns item value in Integer format which is inside gridview...
I'm having difficulty trying to create and persist controls inside of a gridview during postbacks. I have an unbound Datagrid control which is created with x number of rows and y number of columns during the Page_Load event.
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During the RowDataBound event of the GridView, I create a placeholder control and then I create a label and add the label to the placeholder
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On the first page load when navigating to the page, the grid dispays perfectly and the labels are created with no issues and I can see the "1" in every single cell of the Gridview. I basically need the labels in the cells to store an ID when the cell is clicked (the click event works with no issues, wired it all up with javascript) and Since the Cells to not exist prior to "Building the matrix" method, How can I persist the Label controls inside of the tablecells between postbacks so I can assign and read values from them.
I've read a number of online posts from 4guys from rolla and they demonstrate how to persist a handful of controls dynamically created in a staticly defined PlaceHolder conrol outside of the complicated setup of the gridview and have failed at adapting them. The golden rule seems to be to 'recreate' the controls during Page_PreInit during the postback, but I can't seem to get it working.
Setting up the editItem template of a gridview. I have a template field with a dropdown list for editing. When the gridview goes into edit mode the dropdown list is displayed with all the right options but the current value of the field (pre-editing) is not the selected value of the dropdown list? How do I make that happen? I have a couple fields where the editItem template will use a dropdown list and I'm sure a user will not realize those values have changed and they will just edit what they intended to edit and save the changes, inadvertently also making changes to other fields.
View 3 RepliesI have 2 fields being displayed in a Gridview, StartTime, EndTime. I want to create a 'Time" column which shows the elapsed time in HH:MM format. (StartTime - EndTime) This was all generated with VS2008, table is pulled from an SQL Query.
View 1 RepliesHow do I access a specific control within a FormView's "<InsertItemTemplate>"?
View 2 RepliesI have a gridview that I want to show a dropdownlist (for, let's say, column1) when it has a certain value, and I want to change that same column into a label when it has a certain value. Is this possible with gridview? if so, how?
View 2 RepliesI am trying to change the textboxes in the FormView insert template to dropdownlists but they keep setting the parameters to null. Here's what I have:
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In Page_Load
CType(frmSurvey.FindControl("ddlYearOfQualification"), DropDownList).Items.Add(New ListItem("2010", "2010"))
CType(frmSurvey.FindControl("ddlYearOfQualification"), DropDownList).Items.Add(New ListItem("2009", "2009"))
and in the SqlDataSource
InsertCommand="INSERT INTO [tblSurvey] (... [YearOfQualification] ...) VALUES ( ... @YearOfQualification ... )
And in insert parameters:
<asp:Parameter Name="YearOfQualification" Type="Int16" />
And the insert fails with YearOfQualification as null. If I sue the standard textbox:
<asp:TextBox ID="YearOfQualificationTextBox" runat="server"
Text='<%# Bind("YearOfQualification") %>' />
I keep getting a null reference when I try to access a listbox inside the EditItemTemplate of a formview. I check the mode before accessing the control (Formview1.CurrentMode) to make sure it is in edit mode and even set it manually to edit mode again! But formview1.findcontrol("blah") returns null. Formview1.EditItemTemplate does not have a FindControl method, not sure what else to try.
View 1 RepliesI have the below label. I need it to be a link that will cause the following:
Existing label INSIDE a DataList Item Template;
<asp:Label ID="Label10" runat="server" Text='<%# Eval("CG_ID") %>' Font-Size="X-Small"></asp:Label>
I need to change this label to a link that will cause C# code behind to:
tbxCG_ID.Text = Eval("CG_ID")
and then call this:
protected void ListBox1_SelectedValueChanged(object sender, EventArgs e)
I keep creating a DataList1_SelectedIndex_Changed event created when I double click the label or a link button. What is the code needed? I can see the Eval("CG_ID") value with the label but I don't know how to get it into tbxCG_ID.Text and fire the ListBox1 event.
I'm trying to use a required field validator on a fckeditor inside a formview edit template, but it's not working and I can't seem to get any google searched methods on this to work.
View 4 RepliesI am saving grid data. Grid contains one textbox in item template column. But it was not saving any data, which was entered in textbox(Just saving 'NULL'). There was not error while debugging. Below is code i am using.
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I know this is really stupid, but I really can't find the answer via Google or the forums. How do I programmatically add a Separator Template to a Repeater or DataList?
View 3 RepliesI have a GridView with custom pager template. I use SqlDataSource with a dynamically generated select query.
To make application faster, I want to select not all records, but as many as fit in a GridView page. But in this case, the pager section doesn't show up. Could anybody suggest how I can fix that? Some people say I should do my own pager template, but I don't know neither how to make it, nor how to use it.
i want to create below template field dynamically in C#.net
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="chk" runat="server" />
</ItemTemplate>
</asp:TemplateField>