We Keep Coding

Anyway to avoid buttons when it comes to page load? [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
I have created a program that runs through a flow using C#
At the moment it contains a large amount of buttons to make certain panels visible etc.
I was wondering if I could make the page refresh when the user checks a checkbox?

You need to set the CheckBox' AutoPostBack-property to true(default is false).
<asp:CheckBox id="checkbox1" runat="server"
AutoPostBack="True"
Text="Check/uncheck me for a postback"
OnCheckedChanged="Check_Clicked"/>

IF you want to refresh your panel on check of checkbox, you can do something like below:-
<asp:CheckBox id"chkVisible" runat="server" AutoPostBack="true" OnCheckedChanged="chkVisible_OnCheckedChanged" Text="Test for Page referesh" />
You need to set AutoPostBack property to True for refreshing your page.

Try this :
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//do whatever you want to on first time page load
}
}

Dynamically change the class of a div nested in a gridview item template from code behind c# [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
I need to change the class of a div nested inside a gridview item template, i have given the runat="server" tag and an id for the div. How can we change the class of that particular div upon gridview databind based on each row conditions.

ASPX
<asp:GridView ID="gv" runat="server" OnRowDataBound="gv_OnRowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<div id="yourDiv" runat="server"></div>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Code-behind
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e) {
if (e.Row.RowType == DataControlRowType.DataRow) {
HtmlGenericControl div = (HtmlGenericControl)e.Row.FindControl("yourDiv");
div.Attributes.Add("class", "ClassYouWantToAdd");
}
}

HyperLink ID Pass with ASP.NET [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 8 years ago.
Improve this question
Can someone give an idea how I can see details of a selected product (suppose) regarding The productID in another page with HyperLink?? I have Tried To pass The ID with QueryString with Linq. But not done.

Mark up
<asp:HyperLink ID ="hyperLink" runat="server" />
C#
Set the url:
hyperLink.NavigateUrl = "somePage.aspx?id=123";
Read the url query string in somePage.aspx
var id = Request.QueryString["id"];

You have multiple problems in your code (as given in your comment section).
Here is what you have
<asp:HyperLink ID = "View" server = "runat" NavigateUrl = '<%# ("~/pageredirect.aspx") + eval("CatergoryID") %>'>View</asp:HyperLink>
Issues:
you have server = "runat" and it should be runat="server"
you are concatenating CatergoryID with the redirect page and not really passing as querystring which will really append the value like pageredirect.aspx + categoryid
you are binding as CatergoryID and retrieving by query string name CategoryID which is not same (notice the typo)
Change your asp:HyperLink definition in the itemtemplate of the gridview in Approve.aspx as below
<asp:TemplateField>
<ItemTemplate>
<asp:HyperLink ID="hlView" runat="server" NavigateUrl='<%# Eval("CategoryID", "~/pageredirect.aspx?CategoryID={0}") %>' Text="View" />
</ItemTemplate>
</asp:TemplateField>
and then in your pageredirect.aspx.cs access the querystring value as
if (!String.IsNullOrEmpty(Request.QueryString["CategoryID"]))
{
int m = Int32.Parse(Request.QueryString["CategoryID"]);
....
}

drop downlist with multiple selection in asp.net [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 7 years ago.
Improve this question
I am working on an asp.net application. I need a drop downlist where user can select multiple items from dropdown. Also, the number of selections allowed should be controlled by code.
Please suggest

For that you want you could use a ListBox. You can't use a DropDownList, because a DropDownList is used for the selection of a unique option. In other words, you can't select more than one of the provided options. As it is stated here, DropDownList class
Represents a control that allows the user to select a single item from a drop-down list.
On the other hand for a ListBox class we have that
Represents a list box control that allows single or multiple item selection.
For more information about ListBox, please have a look here.

Here's a solution using jQuery:
jQuery
<script>
$(document).ready(function () {
$('#BeerSelection').change(function () {
var $BeersSelected = $('#BeerSelection').val().length;
if ($BeersSelected > 3) {
alert("Hey Bro, you've selected too many beers");
}
});
});
</script>
aspx code
<asp:ListBox runat="server" ID="BeerSelection" SelectionMode="Multiple">
<asp:ListItem>Yuengling</asp:ListItem>
<asp:ListItem>Budwiser</asp:ListItem>
<asp:ListItem>Blue Moon</asp:ListItem>
<asp:ListItem>Coors Light</asp:ListItem>
<asp:ListItem>Chimay</asp:ListItem>
</asp:ListBox>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Submit />

I suggest you use this tutorial for dropdownlist: dropdownlist tutorial, it works fine :)

add 10 empty rows to gridview [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 8 years ago.
Improve this question
i need that by default Gridview must have 10 empty rows with only one Column that column should have Textbox
here is my script of gridview
<asp:GridView ID="gv_Others" runat="server" AutoGenerateColumns="false"
onrowdatabound="gv_Others_RowDataBound"
onrowcreated="gv_Others_RowCreated">
<Columns>
<asp:TemplateField ItemStyle-Width="40px">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemTemplate>
<asp:TextBox ID="txtemp" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
is that possible to create 10 empty rows by default in a gridview?

you can try this
string[] str = new string[10];
List lstStr = str.ToList<string>();
gv_Others.DataSource = lstStr ;
gv_Others.DataBind();

var list = new List<string>();
for (int i = 0; i < 10; i++)
{
list.Add(string.Empty);
}
gv_Others.DataSource = list;
gv_Others.DataBind();
This is the quickest and dirtiest way I could think of, would I write something like this? No. But then I'm sure you have your reasons, would have been better if you'd written in your question what you were trying to achieve then we could have helped more and your question wouldn't have got marked down.