How to check Duplicate value in Data table's Rows?

Question

In data table In three rows value given below

 

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22

23	24	25	26	27	28	29	30	31	32	33	34	35	36	37	38	39	40	41	42	43	44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

 

 

I will check duplicate value occur. like if 2 is occur in two times show the validation message.like Duplicate value occured.

if (ds.Tables[s].Rows[0][i].ToString().Trim() == "")
{
dt.Rows.Add();
dt.Rows[mn][0] = "Tag Number Should Be Mandatory" +ds.Tables[s].TableName; 

}

Above code i will check if the empty filed occur in table show the mandatory message.Now i want to validate duplicate value occur.

Answer 1

Hi,

 

Please check the attached file. 

Answer 2

Try like below : 

<ItemTemplate>
    <%# Container.DataItem("columnName") == "N" ? "<a href="" />" : "<asp:ImageButton ID='ImageButton1' ImageUrl='<%#Eval("Item")%>' OnClick='ImageButton1_Click' runat='server' />"  %>
</ItemTemplate>

 

Answer 3

Manas Mohapatra

Thank you!

Answer 4

Midhun T P

Thank you so much it's working fine

Answer 5

Hi

 

Midhun T P

In data table one column have value like 

N

R

N

N

R

 

how to change the button to image button inside the repeater(button is inside the repeater) .

Is this in table we hide and show but it is in repeater

if N comes button show if R comes button to image button how to do it.

 

Answer 6

Hi,

 

You can use both and hide one of them according to the value in itemdatabound