Asp.net - How To Populate GridView.DataKeyNames, Constructing Array From Within A Loop
Mar 10, 2010
I have to set GridView.DataKeyNames(This is really a question about the syntax for a string array, in VB.Net.)
I am discovering the PrimaryKey columns names from within a loop, ie:
For Each fld As IEntityField In Me.llbDataSource.EntityCollection(0).PrimaryKeyFields 'fld.Name ' this is where the column name is stored, so I have to get this into an array Next I can not use this syntax.
So, basically, how does one declare a string array (as required by GridView.DataKeyNames), and then populate the elements of the array from within a loop?
I need to build an array of implicit objects in a var object by looping through a List and adding the to the array. For example...
Code: var data = new[] { new { Name = "China", Value = 1336718015 }, new { Name = "India", Value = 1189172906 }, new { Name = "United States", Value = 313232044 }, new { Name = "Indonesia", Value = 245613043 }, new { Name = "Brazil", Value = 203429773 },};
If I wanted to dynamically add new objects with the Name and Value values above by a looping through an existing List, how would I go about it?
i just would like to ask..i have generate the number of date using loop.. when i insert the start date eg 1/1/2010 and the end date as 12/12/2010.. and the gap between the date should be one week..eg of the result should look like this in the web form:
1/1/2010 8/1/2010 15/1/2010.......till 12/12/2010
thus, i would like to ask, how can i pass all the generated date to sql database..do i need to store those date in an array before pass them to database.. if so, how can i pass those date to an array??
I've got a while loop that's doing some stuff, and what I want is for it to create a new array each time.
while(condition){ //do some stuff //create an array x[] //amend values in array //save as new array each time until loop finished }
Actually i need to store the comma separated values of different datatypes in an array using split.And then i hav to sort these values comparing zeroth position element of all rows.
I have a problem that when i bring the array of asp and use it in the javascript, When i use the counter (i++) and print for each index of array just like "<%=app[i] %>" and it is not return the value back to me.i solve this problem for a dayedit
I want to get Array Elements by ForEach loop with Counter ..
whislist = dsddsds.Tables[0].Rows[0]["wishtlist_clg"].ToString().Split(','); int i = 0; foreach (string id in whislist) { if (i != 0) { tarsk.Value="1"; } else { tarsk.Value="0"; } whislist =525,1315,1331;
TARSK is an hidden field....
I want if whitelist is not in blank then 1 not equal to 0 is True other false but yet false condition is fire....
My original code was in classic vb. and could use redim array to resize them. I was porting the code to c# now and lately i have run into an issue to resize a 2 dimensional array. The thing here is I have a 2 dimensional array whose 2nd dimension needs to be increased dynamically as needed to accommodate the data. For say
String[,] ary1=new String[2,10];
I'm doing some operation in a loop and filling in the data in ary1. And if the loop still continues, on reaching the ary1 upper bound i need to increase the size further to accommodate 10 more rows. I tried couple of ways to copy it to a bigger array and assign it back to the current array. but somehow dint work.
I have always had problems with creating loops so here I go again.
I have a dataset populated with 1 column and multiple rows. What I am trying to do is create a page that will be used for emailing multiple users. The names will need to be separated by a semi colon.
How can i read multiple column values into an array list? I am trying to read a list of category names and category ids from database into an array list; i am then binding these values into drop-down list. With my current code, i am able to do with one column only but would like to pull both cat_name and cat_id so how can i do that?
I have a generic List which is populated with an object which has properties like FirstName, Surname etc.
If I bind a gridview to the list with autocompletecolumns = true, the Gridview displays the data in the List.
The code looks like:
[code]....
My question is:
How do I populate the DataKeyNames with the properties (FirstName, Surname) contained in the object that is contained in each element of the Generic List?
From what I understand within the Gridview Object you can have many datakeynames.
I have the field like this DataKeyNames = "id1, id2"
However, i don't know how to access the DataKeyNames individualy. For example. How do you access the first ID for the for a given row or the 2nd ID for a given row????
I have a MultiView control with 3 View controls inside it.
View1 contains a GridView control with 2 DataKeyNames assigned.
View2 contains a FormView and a DetailsView control.
View3 contains several DetailsView controls.
When a row is selected in the Gridview I'd like to update View2 to show data relating to the selected row DataKeyName 1 and View3 to show data relating to the selected row DataKeyNames 1 and 2.
I have previously tried configuring the SQLDataSource to use a WHERE clause setting the Source Control to the GridView object but I couldn't get it to work. There was nowhere to state which DataKeyName to use as the parameter.
Since I am using 2 DataKeyName is Gridview, so I have to pass both the DataKey while deleting Row from Gridview(using "Image Button" of Gridview).I tried it using below lines:
string name = GridView1.DataKeys[gvrow.RowIndex].Value["G_Name"].ToString(); string id = GridView1.DataKeys[gvrow.RowIndex].Value["Param_ID"].ToString();
I am trying to create a dynamic table that is being built based on the value of a search text box. The Table will have probably 6 columns of 20(max) rows.
My problem is I can't figure out how to return the data from the web-service to the JS function in a way that will allow me to extract the data that I need.
I have two columns in my Gridview marked false for the visible property but which are clearly listed in the DataKeyNames that are still getting set to null in my database table on update.
The first one is a column MId# which is a type int. It starts as 0 but on edit is turned into null. The Second is RequireSKU which is also converted to null.
I am did Gridview delete and rebind data using json and jquery like this
<script type="text/javascript"> $(document).ready(function () { $(".deleteGridRecord").click(function () { //Get the Id of the record to delete var record_id = $(this).attr("id");
[Code] ....
But i want to set DataKeyNames properties of grid view in above code dynamically how can do this....
below is the code I have but I want to change the ddl.Deal(dropdownlist) to cbl.Deal(checkboxlist).. How can I loop throught each items if checked. and if all items are checked. to filter my data and show in gridview..
protected void btn_Click(object sender, EventArgs e) { myAPI.myWeb myAPI = new myAPI.myWeb(); myAPI.SearchParameters sSearchParameters = new myAPI.SearchParameters();
I'm constructing a query using linq, but I'm having trouble using a collection, i.e. where field in database = anything in the collection.
Below is an example of what I mean:
dim keywords as string ="test,test2,test3,cats,dogs,frogs" Dim getKeywords = (From cp In myDataContext.pages Where cp.pageKeywords = currentPageKeywords.Split(",")
The aim of the above code is to return all records where the "pageKeywords" field contains 1st keyword, or 2nd keyword, or 3rd keyword etc.
