Databinding String Is Passed To Function But Runtime Occurs?
May 22, 2010
I'm using a code-behind function (called TestFx) in my binding expression. I'm passing a string and the function accepts a string but I still get a runtime error saying invalid args.
But if I change the method to accept an object and inspect the value, "it's a string!"
I have a webForm which host a gridview and a formview. The formview is used for showing/editing a record which the user Select from the gridview.
In the formview Edit template I used DropDownList controls with
SelectedValue='<% bind("datafield")%>'
for enabling the user easier interface. A few of the DropDownList controls need to have a list of 100 items and I want to load the items from code behind and not from the aspx.
I tried to update the DDL's from FormView.Load, FormView.ModeChanging, FormView.PreRender but nothing I am getting an error like this:
[code]....
How do I load the DropDownList controls with items BEFORE the form databinding occurs.
In my application if I get an exception I catch it and send stackTrace through email. I also need the values of parameters passed to this function. I can get the names of function and parameters using MethodBase class of System.Reflection.
I would like to know if someone can give me a good example of counting how many times each word is occuring in a string and then show the results
I have one example and I thought it worked well ......but as soon as a word appear more then twice it thows an error....so this code is not really working then
below is the code I have anyway...maybe someone can tweak it for me if possible.
I'm trying to pass a string value to a javascript function from a LinkButton's OnClientClick event, but the function is receiving "<%# Container.DataItem %>" instead of the value. Here's the code:
The container is a collection of strings. Why is it not evaluating?EDIT: This is located in a nested ListView. The datasource for the inner ListView is a property in the datasource of the outer ListView.
I have a HyperLink column in a gridview that when clicked should navigate the user to another page. I pass parameters to the page using a querystring. i want to encrypte the querystring when it passed to another page
i have a webform which has got required field validators. when the user doesnt enter values and clicks submit button it should not cause postback. i have set CausesValidation="True" on the submit button.hen the user clicks submit button without entering values, validation occurs( red * marks are shown) but the postback also occurs.
I would think that this would work pretty seamlessly, but I am having trouble getting the text from a textBox control in an accordion pane's content to pass into the paypal web payments https post.
If I put an amount in the querystring in my codebehind isntead of passing the text string and click the button in the accordion pane, it works perfectly on the paypal page. But for some reason, I am getting a null return in the text string when I try to make the amount in the querystring whatever the text in the textbox is.
I have tried putting the accordion in an update panel and got the same results....
Am I missing something the get the text from the textbox?
Here is how I am getting the text string in codeBehind:
Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim amt As String = donorAmt.Text Response.Redirect("https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=XXXXXX@XXXXX.org&amount=" & amt & "&no_note=0&item_name=ALT Donor Level Annual Membership&sra=1¬ify_url=http://XXXXX.com/IPN.aspx&no_shipping=0&return=http://www.XXXXXX.com/donate/thanks.aspx&rm=2") End Sub
Note: Some of the paypal string has been removed for privacy
using sqldatasource with a listview to insert and show results from an SQL server db i want to try using the LINQ datasource since it seems to be more flexible in codebehind.
My problem is this: i droped a listview control to the page and i created the Linq datasource in codebehind with vb. the issue that i am having when i ..Select d.columms name i get the error system.string does not contain a property with the name "columname".. if i ommit the column name then its works fine.. i get the error.. code below:
vb code
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim rowsCount As Integer Dim showSearchForm As String showSearchForm = Request.QueryString("tab") If showSearchForm = "1" Then
[code]....
b.dbMake needs to work so that i can use Distinct ,, ia m using asp.net version:3.5 and IIS version 7.0 .. not sure what i am missing ,, but i did try alot of approaches,,1- checked the web.config file and it seems to have two assemblies and two namespaces for LINQ..2- used different databinding syntaxs,,and i searched a lot for the solution.. the last one i read the person ommited the name of the column,, i thought that wasnt the best solution.. also my dbMake column is comming up in the "intellisence" ..
i followed this link [URL] and i get selected value from dropdownlist using jquery
i created 3 partial views .
i need depend's on dropdownvalue redirect to partial page , so how can i implement in jquery with conditions?? or how can i implement in this function Public Function FetchData(ByVal dropdownValue As String) As ActionResult??
my users haves different permission: some users can delete, and some users can editing in a gridview how can i allow this at specified users? and hidden the button ho allow the delelte or update record?
Does anyone has an idea on how to change the connection string of the webparts at runtime. i have a multitenant app, and would like to store each accounts users settings in their respective DB's i tried changing the connstring in the webpartsmanager init, and the page load event
Dim myConfiguration As System.Configuration.Configuration = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~")
My problem is i need to update only the database name in current connection string in web.config at runtime....
this is the sample code .. to update connection string . but it updates the name of connection string i need to change the database name of connection string !
public static void UpdateConnection(string name, string connString) { var webConfig = new ExeConfigurationFileMap { ExeConfigFilename = GlobalSettings.FullpathToRoot + "web.config" };
i have a dropdownlist contaning years..now i want to connect my database by dropdown selection.if i select 2013 it will connect 2013 database ,if i select 2014 it connect 2014 so on..