I have a DataTable, one of the column data type is of type Bool or sql(Bit).
now i want to assign this value to a Bool variable/object or lets say i want to assign this to a checkbox, How do i do that
eg. not correct though
DataTable dt= new DataTable();
Bool a= dt.Rows[0]["IsApproved"];
cb.Checked=dt.Rows[0]["IsApproved"];
I am using ASP.NET and VB to display a message(label) while the datalist is empty like this
<asp:Label ID="lblEmpty" Text="No Data To Display" runat="server" Visible='<%#bool.Parse((dlErgebnis.Items.Count==0).ToString()) %>'></asp:Label>
I am getting a error "the name bool is not declared".
What is causing this error?
I would like to add a checkbox to my grid view to represent a bool property of the list the grid view is bound to.
I want to show a checked checkbox for true instead of just showing text of 'true' or 'false'
Is this possible. When I try to add the checkboxfield in the gridview wizard. The add button is grayed out when selecting checkboxfield
i create a sproc for validation username and email address lilke below:now i use this sproc like below:
[Code]....
Error 6 The best overloaded method match for MisaghDataContext.usp_ValidUserNameEmail(string, string, ref bool?)' has some invalid arguments
for my web part,i need to show some data of data table.now,i m developing in asp.net with c#.how i convert to html table from data table?And also,i don't need to show some columnsuch as ItemID.my data table will be like this.
ItemID ItemName Qty Price Unit Amount
I-0001 ItemOne 10 100 Box 1000
I-0002 ItemTwo 20 200 Card 4000
I-0003 ItemThree 30 300 Tab 9000
itemID column is not need to show.i want only itemname,qty,price,unit,amount columns.
please give me right way.
I am retrieving results from a SQL database based on a user file upload, and I am saving the returned results in a datatable. It can be up to 15,000 rows. I need to use this datatable in other requests in this same page - i.e. saving the data back to another table, exporting to a file....How can I store the datatable to access again? I read up on viewstate, session , and cache, but they all seem to have an affect on performance and memory.
View 7 RepliesI have a Gridview like this;
In my .cs file i calculate value of BV, MV, KV total value with this code and i assign to a Label. Labels are under the Gridview. BUT, some customer names long some of short, because of that, labels location changing according to Gridview. Because of that i don't want use Label.
I calculate a value with this code, and how can i assing BV, MV and KV columns footer this value?
double sumRISK = 0;
foreach (GridViewRow gvr in GridView1.Rows)
{
CheckBox cb = (CheckBox)gvr.FindControl("NameCheckBoxField1");
if (cb.Checked == true)
{
double amountBV = Convert.ToDouble(gvr.Cells[7].Text);
if (amountBV != -1)
{
sumRISK += amountBV;
}
}
}
RISK_Label.Text = String.Format("{0:n}", sumRISK);
i have to combobox which default selected value is "select all" and other values USA GERMANY vs.
and i have countries table.how can i query all country names when "select all" value is selected.My stored procedure is look like this
select * from countries where countryname=@prmcountryname
I have read many, many articles about this issue and still cannot fix my gridview. It is a simple datagrid with a couple readonly fields and then one field is available for edit. I cannot get the new value the user enters into the grid for update... My grid can delete and cancel. I am dynamically binding and know that I have to handle this but I cannot get teh changed quanitity value out of the grid.
This is what is failing...
'The value that changed is blank but I can see the read only values here!!
hfQuantity.Value = gvCart.Rows(e.RowIndex).Cells(2).Text.ToString()
Here is my gridview:
<asp:GridView
ID="gvCart"
runat="server"
AutoGenerateColumns="False"
EnableTheming="False"
GridLines="None"
DataKeyNames="PRDID">
<Columns>
<asp:BoundField
HeaderText="Vendor Number"
DataField="VNDNO"
ReadOnly="True">
</asp:BoundField
<asp:BoundField
HeaderText="Product ID"
DataField="PRDID"
ReadOnly="True"
HeaderStyle-Width="90px"
ItemStyle-Width="90px">
</asp:BoundField>
<asp:BoundField
HeaderText="QUANTITY"
DataField="QUANTITY"> </asp:BoundField>
<asp:CommandField
ShowEditButton="True"
HeaderStyle-Width="60px"
ItemStyle-Width="60px"
CausesValidation="false">
</asp:CommandField>
</Columns>
</asp:GridView>
Code behind:
Private Sub gvCart_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles gvCart.RowEditing
gvCart.EditIndex = e.NewEditIndex
gvCart.DataSource = Session("CartTable")
gvCart.DataBind()
End Sub
Private Sub gvCart_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles gvCart.RowUpdating
'Find the row that was clicked for updating.
Dim row As GridViewRow = gvCart.Rows(e.RowIndex)
'Change the edit index to -1
gvCart.EditIndex = -1
If row IsNot Nothing Then
'The value that changed is blank but I can see the read only values here!!
hfQuantity.Value = gvCart.Rows(e.RowIndex).Cells(2).Text.ToString()
Dim myDatatable As New DataTable
'Find the Control in the grid.
myDatatable = Session("cartTable")
For i As Integer = 0 To myDatatable.Rows.Count - 1
If e.RowIndex = i Then
myDatatable.Rows(i)(2) = hfQuantity.Value
Session("cartTable") = myDatatable
gvCart.DataSource = Session("CartTable")
gvCart.DataBind()
End If
Next
End If
End Sub
As I kept my fetched datatables into session and accessing it on another page there I am
wroking on datatable to fetch only distinct values of particular column to assign to dropdown list.
How to assign MaxLength Property to BoundField column in DetailsView COntrol without Converting into TemplateField.
View 3 Replies[code]....
I am having Table called Interest and has only one column named Answer...
i want the checked values to insert in database..If i select Family, News and Fashion... The inserted data should be in Three rows of answer field..
i have a gridview and a date column.
How do i check if the date column is more than 2 weeks old and display a prompt. ie a label if its more than 2 weeks old
I have the following query in which I have to convert the 'bool' valu into 'string' value as "Y" or "N". I have a class defined called ChartDosCodeInfoStruct which definesQAIndicator as String. The value I am feteching from DB is a bool value. I need to take this bool value and accordingly assignQAIndicator= "Y" or "N".
UserManager userManager = (UserManager)BaseEntityManager<DataAccessLayer.User>.GetSingleInstance();
List<User> user = userManager.GetCodersForChart(_currentChart.ChartId);
UIConfigurationObject.CoderForChart.value = user.First().FullName.ToString();
[code]...
How to bind nullable bool to checkbox in MVC 2. I try with this code in view:
<%: Html.CheckBoxFor(model => model.Communication.Before)%>
But show me compilation error.
Why can't I do this?
if ((bool)Request["genericError"] != true)
{
return;
}
Compiler gives me:
Cannot convert type 'string' to 'bool'
Request["genericError"] should be an object, so why does the compiler think its a string?
I'm looking for the reason for this, not how to sidestep it (using Convert)
I am displaying some data in a grid view. I want to add another column in the grid which displays a check box for each row in the grid.
1. How do I give a new name to each textbox? example could be corresponding Case No value could be the text box name.
2. I have a button to read what checkboxes have been checked and initialize a string accordingly. For each checkbox checked it should add the corresponding row's "case no" value to a string.
[code]....
cannot convert string to bool error in LINQthis is my code:
[Code]....
protected void Button1_Click(object sender, EventArgs e)
View 2 RepliesI have grid view containing check box column as one column,a drp down and button outside the grid..
for example drop down has two options like first and second,if i select first i want to change the name of the button to first and if i select second button name should be second,,and also i want to disable the checkboxes in gridview when button name is second..
I am currently using DevExpress ASPxGridView and want the selection check box to show a redcross image on selection or empty when unselected. Is there any javascript library to do such a thing. If so can you provide me an example.
View 1 RepliesI need to create a public bool that checks a string for items in an arraylist.
Here is a vague sample of what I'm talking about..
[Code]....
I'm not experienced enough with the foreach statement to quite figure out what I'm doing wrong here.
I am a super newbies in ASP.net. Can I know what is the explanation for this coding? it is in Login page ;private bool IsAdmin(string id)
View 3 RepliesIf I'm returning an object, then it's pretty straight-forward. However, if I'm just trying to return whether or not the method was successful or not, what's the best option? Sure ... bool seems obvious - but what if you need to debug or get some additional details out of the method than just "yes/no"? Well that's where a string becomes more obvious, right? You can leave it empty to say that the method was successful or chock it full of details in the case of an error. But this can make it less intuitive to others who may have to run your functions and it also jumbles up everything you wanted to pass back into one large string.
View 3 RepliesHow to make gridview row in bold? I've written the below code to do that but I get error
Error2 Cannot implicitly convert type 'int' to 'bool'
my code is
protected void ddlread_SelectedIndexChanged(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
if (((CheckBox)row.Cells[0].FindControl("chkselect")).Checked == true)
{
if (ddlread.SelectedIndex = 1)
{
//GridView1.RowStyle.Font.Bold.ToString();
row.Font.Bold.ToString();
}
else
{
}
}
}
}
}