I want to be able to store user searches on our website. The searches are defined using an EntityDataSource. How can I store the underlying SQL that is generated by the EntityDataSource?
View 2 Repliesan ASP.NET web page I have an EntityDataSource:
<asp:EntityDataSource ID="EntityDataSourceOrders" runat="server"
ConnectionString="name=EntitiesContext"
DefaultContainerName="EntitiesContext"
[code]...
What would be the best way to extend the EntityDataSource control? I have a site that implements Entity Framework and I current create my model container and add it to the HTTPCurrent context. When I create EntityDataSource controls on the page I have to go into the code behind and set the OnContextCreating to add MY context to the EntityDataSource instead of the one that EntityDataSource creates. This is because in my model I have extended the Partial Classes to support Validation and custom Save/Delete methods.I would ideally like to create a custom control that I can drop onto a page that has its context already set to the context that I created.
View 1 RepliesI am trying to do a version of this post, but with the EntityDataSource. I think I am close, but it seems that the "InsertText" and "Insert" command in the code-behind do not carry over. Here is what I have so far, but please help me fix it. In addition, in the .edmx the Table "UserProfiles" inherits from "aspnet_Users"
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how to handle html and scriptswhat . if I build my own CMS? Isn't it inevitable that I'll want to store html code, possibly scripts, and almost certainly apostrophes and special characters, and then display them again.
What's the best way to do this, since I wont want to display the encoded html, but the html itself.
Would it be to encode everything then when I want to actually display the html, decode it, but everywhere else, keep it encoded?
I'm just trying to think of all the scenario's that I could come across when I accept user input where I don't know what they could be typing in. What if I WANT the user to be able to display html? Is it possible to decode only some tags but leave all other tags encoded?
I have been using a function that replaces some characters from my editor in asp.net with '+CHAR(x)+' to chain together a string with characters such as single quote that would otherwise break the query, i know how to escape the character using double single quote but i was wondering why i get this problem.The problem is that when the string gets too long about 7kb to 8kb its gets cut off for no reason, no error message gets displayed, the query is successful only the string cuts off at a point. When i escape the character without using '+CHAR(x)+' to add the character i can add a very long string that does not cut off,i am using Varchar(max) for my field, (have also tried text).I am using sql 2008 express edition, and encounter this problem when i paste the generated query into sql management studio, and when i execute the query fromasp.net code.
View 1 RepliesWhat I'm trying to do is take an instance of a control, and figure out what the markup would look like based on the property values set in the code behind. We've built a web-based web form designer. At the end of the design process we save the markup. For simple controls with supported types, generating the markup was easy. For complex controls with nested properties or unsupported types, we're faced with creating a custom markup generator for each custom control. I was hoping to find info out there that would jump start this development effort.
In simple terms, I have this:
Dim Ctl as Control = CType(Asm.CreateInstance("MyNameSpace.MyControl"), Control)
Ctl.Name = "Name of my control"
And I want to end up with this:
<cc1:MyControl ID="MyControl1" runat="server" Name="Name of my control" />
I have a File Uploader in my ASP.NET application Using C#, we can upload any type like images, documents, pdf etc.
I m storing it in the Filesystem and having only the Name of the File in DB.My doubt is can we store the entire file, images in DB. State me Which is good practice and why we need to use it.
Either file System Storage or SQL DB Storage.
I have an ASP.NET web form that has a "container" usercontrol that hosts several custom user controls on the page. The controls can be hosted directly in the container or can be children of other usercontrols. The container usercontrol has several public properties exposed that I sometimes need to get to from within the child user controls. I've been using some form of "this.Parent" or "this.Parent.Parent" to get back to the base control.
What would be the impact of storing a reference to "this" into Session from the base control so I can access it from within the event handlers within the user controls?
I have a formview with an entitydatasource. I am using a fileupload control in the formview to upload file to a folder. The file upload works fine. The formview is bound to a table x with a field for storing the filepath. I want the uploaded filepath to be stored in that field after fileupload. My html is as follows. I tried setting the textbox txtImageURI to the filepath in Formview_ItemInserting event, but the data did not get store.
<asp:FileUpload
ID="fupldEvent"
runat="server"
/>
<asp:TextBox
ID="txtImageURI"
runat="server"
Text='<%#
Bind("ImageURI") %>'
Visible="false"
/>
HAVING PROBLEM TO GENERATE A AUTO CONTROL NO. WHEN SOMEONE FILL THE FORM AFTER SUBMITTING THE FORM ON NEXT WINDOW ONE WILL GET AUTO CONTROL NO.
View 8 RepliesMy question is dealing with the DataList control. I am trying to add a click event to the rows of the "table" in the OnItemDataBound event.
The problem I'm having is I can't get a reference (through a row id attribute) to the "row" being generated by the DataList control (and more specifically the item template). Is there a way to add id attributes to the rows being generated by the item template?
I have a DropDownList and need to know its name in the code behind:
<select name="ctl00$cphMainContent$ddlTopic" onchange="javascript:setTimeout('__doPostBack('ctl00$cphMainContent$ddlTopic','')', 0)" id="ctl00_cphMainContent_ddlTopic">
<option value="All">All</option>
</select>
I need to get the value "ctl00$cphMainContent$ddlTopic"
I am simply trying to store a label in a variable in javascript but for some reason this isn't working with document.getElementById('control');. I know my javascript is linking to my html file fine because everything else works.
Here is my javascript code:
function performEvapCooledCircuit(txt)
{
var error = document.getElementById('lblError');
if (txt.value == null || isNaN(txt.value))
{.....
I have a form with BoundFields in it and I need to get ClientID(s) for control(s) associated with each BoundField I have in the form.How can I do it?UPD: I do not have control id. All I have is bound field which can not have an id.UPD2: I'm trying to write a code like this:
public IDictionary<BoundField, string> GetCliendIDs(FormView formView)
{
// How to find Client IDs for controls which were created for BoundFields
}
I'm looking for ways to reduce the size of my page . I have a page that just renders a gridview - no images - and it is over 400k!
Looking at the html that is generated I see the names of the controls in the gridview are very very long. For example: ctl00_ContentPlaceHolder1_releaseGV_ctl149_lblBuy
My gridview is about 200 rows by 13 columns = ~ 2600 spans with very long names rendered. The above example is 49 characters X 2600 controls = 127,400 characters just in control ID's!
The actual data on my page ins't anywhere near a tenth of that!
I am already storing viewstate on the server.
YES, I will put a pager on this page to bring down the number of rows. Also, I've seen sever other posts related to page size with some excellent content. I will follow up on them - however I have not seen this specific question answered.
Here is a sample of my page. As you can see there is not much data and a lot of html!
[Code]....
I've recently added a Master Page to my site,but realized that it's caused some problems in my existing JavaScript setup.I am able to use the following code in most places without any issue to get the ClientID: '<%=myControl.ClientID%>'
The problem I have encountere is that I have several pages that add controls dynamically,and then execute events based on an ID that's passed in,where I can't use this line,because I won't know the ID of the control I'm trying to access until the Javascript executes.Here's a simplified version of the problem:
When the page runs,it creates n textboxes dynamically,and appends a relevant ID from the database to the end of the ID.Let's say the page has added 3 textboxes with the following IDs:
myTextBox1
myTextBox7
myTextBox115
Later,a javascript event fires,and I need to be able to access the control through JavaScript like this:
myJavaScriptFunction (controlID)
{
myvar = document.getElementById('myTextBox' + controlID);
}
I am using a third party control for my web page. I do not have the source code to the DLL. I need to make a very small change the html that the control generates. Is there a way to capture the html generated by the control, and then render the control with that small change.I can override the render method of the parent control, is there a way in that method to find out the html that the control generates in there and render it with the small change?
View 4 RepliesI have a PlaceHolder control inside of a ListView that I am using to render controls from my code behind. The code below adds the controls:
TextBox tb = new TextBox();
tb.Text = quest.Value;
tb.ID = quest.ShortName.Replace(" ", "");
((PlaceHolder)e.Item.FindControl("ph_QuestionInput")).Controls.Add(tb);
I am using the following code to retrieve the values that have been entered into the TextBox:
foreach (ListViewDataItem di in lv_Questions.Items)
{
int QuestionId = Convert.ToInt32(((HiddenField)di.FindControl("hf_QuestionId")).Value);
Question quest = dc.Questions.Single(q => q.QuestionId == QuestionId);
TextBox tb = ((TextBox)di.FindControl(quest.ShortName.Replace(" ","")));
//tb is always null!
}
But it never finds the control. I've looked at the source code for the page and the control i want has the id:
ctl00_cphContentMiddle_lv_Questions_ctrl0_Numberofacres
For some reason when I look at the controls in the ListViewDataItem it has the ClientID:
ctl00_cphContentMiddle_lv_Questions_ctrl0_ctl00
Why would it be changing Numberofacres to ctl00? Is there any way to work around this?
UPDATE:
Just to clarify, I am databinding my ListView in the Page_Init event. I then create the controls in the ItemBound event for my ListView. But based on what @Womp and MSDN are saying the controls won't actually be created until after the Load event (which is after the Page_Init event) and therefore are not in ViewState? Does this sound correct?
If so am I just SOL when it comes to retrieving the values in my dynamic controls from my OnClick event?
UPDATE 2:
So i changed the code i had in my Page_Init event from:
protected void Page_Init(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
//databind lv_Questions
}
}
to:
protected void Page_Init(object sender, EventArgs e)
{
//databind lv_Questions
}
And it fixed my problem. Still a little confused as to why I want to databind regardless of whether it's a postback or not but the issue is resolved.
I have a FileUpload control that currently uploads pics to the Photos folder on my server. What I would like to know is how would I give it a randomly generated filename when it gets uploaded? As I don't want duplicates later on down the line. Cheers.(Code below).
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Code Behind:
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I am creating a Table Control programmatically and I want after user clicks a button to get the values.
The table has three columns, {Title(DropDownList), FName(TextBox), LName(TextBox)} and two rows.
I am getting the values for FName, LName without problem, but I am getting wrong value for Title, which is a DropDownList. It gives me for both Titles, the selected value of the second column.
More Clear
For the 1st row --> Mr, Foo, Bar
for 2nd row- -> Mrs, Foo, Bar
after user clicks the button I am getting
For 1st row --> Mrs, Foo, Bar
For 2nd row- -> Mrs, Foo1, Bar.
This is the method of table creation
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I have a hyper link control and I set the NavigateURL and the ImageURL property at runtime. I also need to set the class of the image tag that it generates but I cannot figure out how I can do that. The solution mentioned here [URL] does not work because the image url is hard coded.
View 2 RepliesI have the following code:
XElement Categories =
new XElement("Promotions",
from b in db.GetPromotions()
select new XElement("Promotion",
new XElement ("Category",b.CategoryName),
new XElement("Client",b.ClientName),
new XElement("ID",b.ID),
new XElement("Title",b.Title)));
XDocument mydoc = new XDocument();
mydoc.Add(Categories);
try
{
// Load the style sheet.
XslTransform xslt = new XslTransform();
xslt.Load(@"C:WebDesktopModulesPromotionsTransList.xslt");
// Execute the transform and output the results to a writer.
StringWriter sw = new StringWriter();
//XsltSettings mysettings = new XsltSettings();
XmlWriterSettings mysettings = new XmlWriterSettings();
xslt.Transform(mydoc.CreateReader(),null, sw);
String mstring = sw.ToString();
It generates the following string:
<ul id="red" class="treeview-red" xmlns:asp="http://schemas.microsoft.com/ASPNET/20">
<li><span>Arts & Entertainment</span><ul>
<li><span>Client 1</span><ul>
<li><span><asp:LinkButton ID="LinkButton2" runat="server" OnClick="LinkClicked" Text="Get your Free 2" /></span></li>
<li><span><asp:LinkButton ID="LinkButton4" runat="server" OnClick="LinkClicked" Text="Get your Free 4" /></span></li>
<li><span><asp:LinkButton ID="LinkButton5" runat="server" OnClick="LinkClicked" Text="Get your Free 5" /></span></li>
</ul>
</li>
</ul>
</li>
<li><span>Community & Neighborhood</span><ul>
<li><span>Client 2</span><ul>
<li><span><asp:LinkButton ID="LinkButton1" runat="server" OnClick="LinkClicked" Text="Get your Free 1" /></span></li>
</ul>
</li>
</ul>
</li>
<li><span>Education</span><ul>
<li><span>Client 3</span><ul>
<li><span><asp:LinkButton ID="LinkButton3" runat="server" OnClick="LinkClicked" Text="Get Your Free 3" /></span></li>
</ul>
</li>
</ul>
</li>
<li><span>Home & Garden</span><ul>
<li><span>Client 4</span><ul>
<li><span><asp:LinkButton ID="LinkButton6" runat="server" OnClick="LinkClicked" Text="Get your Free 6" /></span></li>
</ul>
</li>
</ul>
</li>
</ul>
Now I take the string and add it to a panel which is part of a view in a multiview control: Panel1.Controls.Add(new LiteralControl(mstring)); I have tried to play with Page.ParseControl, but I cannot get it to work right in the panel, the linkbuttons do not show, even though the text is there in the source. Now I tried this: Control myctrl = Page.ParseControl(mstring); Panel1.Controls.Add(myctrl); and I get this as the one of the controls:
a id="dnn_ctr954_ViewPromotions_LinkButton2" href="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("dnn$ctr954$ViewPromotions$LinkButton2", "", true, "", "", false, true))">Get your Free 2</a>
It doesn't work the way expected, dotnetnuke is doing some nutty stuff here using the parse control. it seems to drop my LinkClicked event.
(The following is a complete re-edit of the original post which was rambling, confusing etc...)
I have a form with a dynamically generated checklist:
<asp:CheckBoxList ID="cblGames" runat="server" DataSourceID="sqlGames" DataTextField="Game" DataValueField="Id" </asp:CheckBoxList>
<asp:SqlDataSource ID="sqlGames" runat="server" ConnectionString="<%$ ConnectionStrings:Games %>"
SelectCommand="SELECT [Id], [Game], [ShowWaitingList] FROM [Aanbod] WHERE ([ShowWaitingList] = @ShowWaitingList)">
<SelectParameters><asp:Parameter DefaultValue="true" Name="ShowWaitingList" Type="Boolean" /></SelectParameters>
</asp:SqlDataSource>
The following code-behind is supposed to check those boxes that correspond to values stored in a database. It fails and I don't know why.
[Code]....
Currently, I am programming a web-based application with Visual Studio.NET 2003, and having a problem with an err below :
An error has occurred because a control with auto-generated id 'dgPreventiveMaintenanceSchedule:_ctl5:_ctl3' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events.
That err occurs while I am rendering my datagrid for certain data. In the other words, it occasionally happens.
I've been trying to debug one by one, but I still don't any clues for this kind of err.