Forms Data Controls :: Add 12 Months To Databound Date Field?
Mar 14, 2011
I have an "effectivedate" field that is displayed using a label inside a detailsview control... In the code behind I need to add 12 months to this to check if a policy is up for renewal or not...
To find the control I use this code... Dim EffectiveDate As Label = DetailsView1.FindControl("EffectiveDatelbl").ToString
But when I try and convert the label to datetime type using this... Dim ExpireDate As DateTime = EffectiveDate.AddMonths(12)
I get the error - Cannot convert string to date, addmonths is not a member of label etc...
I have to modify a page so that depending on who views the page i will show client or client Type, its easy enough to change the text but I cant see how to change the datafield
The original Item Template was Enabled ="false" I changed this so that you did not have to set the row to a state of edit in order to just select a row. I enabled it so that you could "select" any row with out putting it in a state of edit. the only value changing is if its selected or not. What i am trying to do is use the Data Source Update method to update the bit in the database based on the check box. Currently Update() returns 0. I believe this is because the row/feild is not marked as changed so the Data Source does not see it as something that needs to be updated.
What I am hoping for out of this is post is a way that the rows whom check value has changed to be marked as changed/edited so that the data source will update the database with the values of the check boxes. If all rows are updated this is acceptable as well. I know this is a super simple solution but i have been out of the .NET for a little bit.
I'm using a gridview to extract a set of records. I need to add another field to the gridview, which can calculate the difference between a date associated with each record and the current date.
I need to find a date 6, months from the current date. How to do it. I use dd/mm/yyyy format. I could use add 6 to mm part, what if it goes beyond 12 ? but it could still be done, I know. I want to know if there is any easy way to do it.
I have a page with a FormView on it. The page is strictly for adding records to a Table. I have the FormView bound to an EntityDataSource and everything works greate except for one thing.
I want to initialize a date field in the FormView to today's date. So, in my page_load event I have:
if (!Page.IsPostBack) { //Initialize SetupDate to today. TextBox setupdate = (TextBox)fvJob.FindControl("txtSetupDate"); setupdate.Text = DateTime.Now.ToShortDateString(); }
The first time this page loads, the txtSetupDate field is initialized.
Although, and subsequent loads of the page doesn't initialize the Text Box. I step through the code in the debugger and I can see that the code is executig, but something (the FormView bind?) is "clearing" the Text Box.
I have a databound gridview that displays basic customer information. I have added a template field to the gridview, but I am having trouble with the coding for the RowDataBound event. I need to take the sum of all payments made by the customer in each row and store it in a variable for further calculation. Also, I need to take an integer value (say 30, representing 30 days) and add it to a date, and return a date.
I have a gridview that has a field called TargetDate which is formatted as dd/mm/yyyy. I want to substring the numbers out of the date. So basically remove the '/'. How do I do that? can't just substring(0,2) because sometimes the date is single digits, sometimes 2 digits. I am using vb.net.
I have two TextBox controls for start date & end date input. I have to validate that end date is not greater than start date & the difference between start date & end date is not more than 12 months.
I'm hitting a wall trying to format a boundfield of a gridview. I've tried suggestion about setting the htmlencode to false, but that didn't make a difference.The column I am trying to format is:<asp:BoundField DataField="FromDate" HeaderText="Start Date" DataFormatString="{0:MM/dd/yyyy}" HtmlEncode="False" />
I have a gridview. However, though I would like to hardcode in a particular column the months of a year. so that I have the following below. How do I go about doing it
I am filtering dataview using my Date Column but the result is not proper because the Field value also stores time, so I want to convert this Date Field to only Date during Filter. How can I achieve this? Here is my code. And the actual value I am getting in the Dataset Field "CreationDate" is a DateTime field which is like
I have an Output clause in a SQL statement and I use getutcdate() for a record. Does UTC record seconds? If so, how do I display it? What data type should I use for the UTC field?
I'm building a pretty simple application where a user can enter/modify/delete data from a table. Right now, the only field is month, which I'm storing as an integer (1-12). The actual table has more fields but I'm simplifying for the purposes of this question.I have the entry part. For modifying, I've set up a gridview with an 'Edit' button:
[Code]....
The code is putting the gridview row into edit mode. Now, I want to show a dropdownlist of months so the user can select the new month. Also, I would like the dropdownlist to default to the value in the database. I can't figure out how to bind months to the dropdown list ddlMonth.
I have a form that contains a text box called "MyDate" in which the user enters a date. I have a table that contains records of which one of the fields in the record is a date field named "DateAvailable" (type is "datetime"). I want to compare the data in the text box to the "DateAvailable" field in record. How do I define my text box as a "datetime" field.
I have a detailsview with an update button one of the update fields is a checkbox which when is checked I want to automatically update a date field of when the checkbox was checked, am I going the right way with this code....... as I am getting a number of errors
Dim i As Integer For i = 0 To detailsview2.Rows.Count - 1 Step i + 1 Dim row As GridViewRow = GridView1.Rows(i) [code]....
I have an ASP.Net detailsview control. Its DataSourceId varies and I set it in Page_load accordingly... (based on LLBLgen sub types, but this is not too important)I guess this is a page lifecycle leaky abstraction I am not "getting".The problem is that I bind to fields that may or may no be there depending on the datasource...To "disable" a bound field under certain conditions I've tried wrapping the bound field in a panel which I set to visible or invisible in code-behind, but I still get the following error:Sys.WebForms.PageRequestManagerServerErrorException: DataBinding: Entity does not contain a property with the name 'FilePrefix'.I change the detaislview.datasourceid in pageload...might be too late in lifecycle.I don't want to bind to that field, as it doesn't exist for the new datasource, but it tries to do so none-the-less and I get the error.[Edited]: Code as requested...ASP, detailsview bound column:
I have a databound calendar control that loads the date from the database.The problem I have is that it defaults to todays date when the form is loaded, although when you scroll to the loaded date you see that the correct date is in fact selected. How can I force it to show the loaded date from the database from the start?
The amount of li elements that will be rendered into each ul is determined at runtime. Each link in a li belongs to into a specific ul (the one containing a specific caption. Imagine this as a kind of a treeview with nodes and subnodes) During the bind Event I need access to an ASP:HyperLink that will be rendered into the a-element. Which databound ASP.Net control should I pick for this? Looks like a repeater in a repeater, which should make the databinding process ugly. I'm thinking about creating this HTML-Output with StringWriters myself.
