I am using devexpress grid view. i have enabled SHOW GROUP PANELData is binded to the gridview using datatable in cs page . But when i drag the coloum to the header to group ...the grid show no data...
Protected Sub SQLDShowActionRef_Selected(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles SQLDShowActionRef.Selected
I'm working on building a an ASP.NET composite control that is a wrapper for a GridView object. I have been able to figure out how compose the control in order for the markup to appear correctly when added to an ASPX page. Now the issue I'm having is that when I drop an instance of the control on a form from the toolbox, I can't interact with the control using the functionality exposed by a GridView (e.g. columns editor, data source selector, etc.), and I don't see any design-time rendering of the child GridView control. What I would like to do is to basically forward the designer behavior of my composite control down to its child GridView control. I have experimented with implementing a custom designer class that inherits from GridViewDesigner that simply initializes itself using the GridView child of my composite control. However, this doesn't seem to work, as I encounter an "object reference not set to an instance of object" error at design time; I'm wondering if this is even the appropriate strategy to achieve what I'm looking for. how to enable GridView-like design time behavior in composite controls. I have scoured the Web looking for articles on how this is accomplished, but I've surprisingly found virtually no resources on the topic.
i have a data driven web application, in my database i have this datetime column,
and in my web application i have this gridview, but the only data that i need to display are the records with todays date until the past 6 days from today, so its like 7 days all in all.
I am using the GridViewHelper [URL]to display gridview with group and subtotals. This seems to only work on BoundField and I am wondering how to get this work with TemplateField.
Dim helper As New GridViewHelper(Me.GridView1) helper.RegisterGroup("DeptDesc", True, True) - Works helper.RegisterSummary("Reg", SummaryOperation.Sum, "DeptDesc") - Throws Error Below helper.ApplyGroupSort() DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Reg'. <asp:BoundField DataField="DeptDesc" HeaderText="DeptDesc" SortExpression="DeptDesc" /> <asp:TemplateField HeaderText="Reg" SortExpression="Reg"> <ItemTemplate> <asp:Label ID="Label2" runat="server" Text='<%# IsSplit(Eval("EmployeeID")) %>'></asp:Label> </ItemTemplate> </asp:TemplateField>
I have to select checkboxes besed on group column values. If you see below gridview, column 3 (GroupN) has 1,1,1,1,2,2,2,2....etc (this column data is not static, will change based on page index. i.e PageIndex =2 may starts with 7,7,7,8,8,8,8,8,9,9,9 etc).
Now My question is.
1). If user selected '1', we have to store value and user must and should select another '1' (atleast two times).
2) If user selected '1', and user trying select '2'. Giving error says "Must have select one then one record in group to combine' (will not allow) and unselect '2'.
3) If user selected '1' atleast two times, and user trying select '2'. Will allow.
4) If user selected '1' atleast two times and selected '2' one time, trying to select '3'. will not allow user to select '3'.
i am using template field display image based on condition in table field. i have field name verify i used to store yes or no value if it is yes then display image else noting to display in gridview
I have a customized gridvew i.e. grvResult. There is a textbox and a InsertButton in the footer.
If there is a data populated into gridview it is showing GridView footer and inserting data but if there is no data in gridview then its footer also not visible.
I have tried in two ways to make footer visible but it is showing following error:
Object reference not set to an instance of an object.
I am working in Asp.net 4.5. I need to create a grid as like below, I am struggling to make the merging cells and make it as multi header row by combining all the cells...
Is there any sample to make gridview like this.... I need to do this on codebehind. I browse through the internet and found couple of sample but those are not having the header like i posted. I am little confused about making full header as merged cells....
I am using an ADO Entity Model for my ms-sql database.
My database has a Resellers table which has ResellerID (primary key, int) and Name columns along with other data.
I also have an Orders table which contains OrderID (primary key, int), OrderDate, ResellerID (foreign key to Resellers.ReselerID).
If I just do a query like:
[Code]....
I am able to reference order.Reseller.Name just fine with no problems.
However I have an EntityDataSource on my page as follows:
[Code]....
Notice the Include="Reseller" attribute in the datasource... I also have a GridView tied to that datasource as follows: I cut some of it off for breavity:
[Code]....
Now what I have listed above will run with no errors, but what I want to do is replace the column that displays "ResellerID" with the equivilant to order.Reseller.Name. In other words I want my grid to display the reseller's name rather than the numeric ID.
I have tried to change the DataField to "Reseller.Name" but that will generate the following error:
A field or property with the name 'Reseller.Name' was not found on the selected data source.
Is there anyway to do this without me writing a custom select statement in my code behind?